root / target-ppc / translate.c @ 38a64f9d
History | View | Annotate | Download (106.1 kB)
| 1 |
/*
|
|---|---|
| 2 |
* PPC emulation for qemu: main translation routines.
|
| 3 |
*
|
| 4 |
* Copyright (c) 2003 Jocelyn Mayer
|
| 5 |
*
|
| 6 |
* This library is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU Lesser General Public
|
| 8 |
* License as published by the Free Software Foundation; either
|
| 9 |
* version 2 of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This library is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 14 |
* Lesser General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU Lesser General Public
|
| 17 |
* License along with this library; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 19 |
*/
|
| 20 |
#include <stdarg.h> |
| 21 |
#include <stdlib.h> |
| 22 |
#include <stdio.h> |
| 23 |
#include <string.h> |
| 24 |
#include <inttypes.h> |
| 25 |
|
| 26 |
#include "cpu.h" |
| 27 |
#include "exec-all.h" |
| 28 |
#include "disas.h" |
| 29 |
|
| 30 |
//#define DO_SINGLE_STEP
|
| 31 |
//#define PPC_DEBUG_DISAS
|
| 32 |
|
| 33 |
enum {
|
| 34 |
#define DEF(s, n, copy_size) INDEX_op_ ## s, |
| 35 |
#include "opc.h" |
| 36 |
#undef DEF
|
| 37 |
NB_OPS, |
| 38 |
}; |
| 39 |
|
| 40 |
static uint16_t *gen_opc_ptr;
|
| 41 |
static uint32_t *gen_opparam_ptr;
|
| 42 |
|
| 43 |
#include "gen-op.h" |
| 44 |
|
| 45 |
#define GEN8(func, NAME) \
|
| 46 |
static GenOpFunc *NAME ## _table [8] = { \ |
| 47 |
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| 48 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| 49 |
}; \ |
| 50 |
static inline void func(int n) \ |
| 51 |
{ \
|
| 52 |
NAME ## _table[n](); \ |
| 53 |
} |
| 54 |
|
| 55 |
#define GEN16(func, NAME) \
|
| 56 |
static GenOpFunc *NAME ## _table [16] = { \ |
| 57 |
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| 58 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| 59 |
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| 60 |
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| 61 |
}; \ |
| 62 |
static inline void func(int n) \ |
| 63 |
{ \
|
| 64 |
NAME ## _table[n](); \ |
| 65 |
} |
| 66 |
|
| 67 |
#define GEN32(func, NAME) \
|
| 68 |
static GenOpFunc *NAME ## _table [32] = { \ |
| 69 |
NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| 70 |
NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| 71 |
NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| 72 |
NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| 73 |
NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
| 74 |
NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
| 75 |
NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
| 76 |
NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
| 77 |
}; \ |
| 78 |
static inline void func(int n) \ |
| 79 |
{ \
|
| 80 |
NAME ## _table[n](); \ |
| 81 |
} |
| 82 |
|
| 83 |
/* Condition register moves */
|
| 84 |
GEN8(gen_op_load_crf_T0, gen_op_load_crf_T0_crf); |
| 85 |
GEN8(gen_op_load_crf_T1, gen_op_load_crf_T1_crf); |
| 86 |
GEN8(gen_op_store_T0_crf, gen_op_store_T0_crf_crf); |
| 87 |
GEN8(gen_op_store_T1_crf, gen_op_store_T1_crf_crf); |
| 88 |
|
| 89 |
/* Floating point condition and status register moves */
|
| 90 |
GEN8(gen_op_load_fpscr_T0, gen_op_load_fpscr_T0_fpscr); |
| 91 |
GEN8(gen_op_store_T0_fpscr, gen_op_store_T0_fpscr_fpscr); |
| 92 |
GEN8(gen_op_clear_fpscr, gen_op_clear_fpscr_fpscr); |
| 93 |
static GenOpFunc1 *gen_op_store_T0_fpscri_fpscr_table[8] = { |
| 94 |
&gen_op_store_T0_fpscri_fpscr0, |
| 95 |
&gen_op_store_T0_fpscri_fpscr1, |
| 96 |
&gen_op_store_T0_fpscri_fpscr2, |
| 97 |
&gen_op_store_T0_fpscri_fpscr3, |
| 98 |
&gen_op_store_T0_fpscri_fpscr4, |
| 99 |
&gen_op_store_T0_fpscri_fpscr5, |
| 100 |
&gen_op_store_T0_fpscri_fpscr6, |
| 101 |
&gen_op_store_T0_fpscri_fpscr7, |
| 102 |
}; |
| 103 |
static inline void gen_op_store_T0_fpscri(int n, uint8_t param) |
| 104 |
{
|
| 105 |
(*gen_op_store_T0_fpscri_fpscr_table[n])(param); |
| 106 |
} |
| 107 |
|
| 108 |
/* Segment register moves */
|
| 109 |
GEN16(gen_op_load_sr, gen_op_load_sr); |
| 110 |
GEN16(gen_op_store_sr, gen_op_store_sr); |
| 111 |
|
| 112 |
/* General purpose registers moves */
|
| 113 |
GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); |
| 114 |
GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); |
| 115 |
GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); |
| 116 |
|
| 117 |
GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); |
| 118 |
GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); |
| 119 |
GEN32(gen_op_store_T2_gpr, gen_op_store_T2_gpr_gpr); |
| 120 |
|
| 121 |
/* floating point registers moves */
|
| 122 |
GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fpr); |
| 123 |
GEN32(gen_op_load_fpr_FT1, gen_op_load_fpr_FT1_fpr); |
| 124 |
GEN32(gen_op_load_fpr_FT2, gen_op_load_fpr_FT2_fpr); |
| 125 |
GEN32(gen_op_store_FT0_fpr, gen_op_store_FT0_fpr_fpr); |
| 126 |
GEN32(gen_op_store_FT1_fpr, gen_op_store_FT1_fpr_fpr); |
| 127 |
GEN32(gen_op_store_FT2_fpr, gen_op_store_FT2_fpr_fpr); |
| 128 |
|
| 129 |
static uint8_t spr_access[1024 / 2]; |
| 130 |
|
| 131 |
/* internal defines */
|
| 132 |
typedef struct DisasContext { |
| 133 |
struct TranslationBlock *tb;
|
| 134 |
uint32_t nip; |
| 135 |
uint32_t opcode; |
| 136 |
uint32_t exception; |
| 137 |
/* Execution mode */
|
| 138 |
#if !defined(CONFIG_USER_ONLY)
|
| 139 |
int supervisor;
|
| 140 |
#endif
|
| 141 |
/* Routine used to access memory */
|
| 142 |
int mem_idx;
|
| 143 |
} DisasContext; |
| 144 |
|
| 145 |
typedef struct opc_handler_t { |
| 146 |
/* invalid bits */
|
| 147 |
uint32_t inval; |
| 148 |
/* instruction type */
|
| 149 |
uint32_t type; |
| 150 |
/* handler */
|
| 151 |
void (*handler)(DisasContext *ctx);
|
| 152 |
} opc_handler_t; |
| 153 |
|
| 154 |
#define RET_EXCP(ctx, excp, error) \
|
| 155 |
do { \
|
| 156 |
if ((ctx)->exception == EXCP_NONE) { \
|
| 157 |
gen_op_update_nip((ctx)->nip); \ |
| 158 |
} \ |
| 159 |
gen_op_raise_exception_err((excp), (error)); \ |
| 160 |
ctx->exception = (excp); \ |
| 161 |
} while (0) |
| 162 |
|
| 163 |
#define RET_INVAL(ctx) \
|
| 164 |
RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_INVAL) |
| 165 |
|
| 166 |
#define RET_PRIVOPC(ctx) \
|
| 167 |
RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_OPC) |
| 168 |
|
| 169 |
#define RET_PRIVREG(ctx) \
|
| 170 |
RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_REG) |
| 171 |
|
| 172 |
#define RET_MTMSR(ctx) \
|
| 173 |
RET_EXCP((ctx), EXCP_MTMSR, 0)
|
| 174 |
|
| 175 |
#define GEN_HANDLER(name, opc1, opc2, opc3, inval, type) \
|
| 176 |
static void gen_##name (DisasContext *ctx); \ |
| 177 |
GEN_OPCODE(name, opc1, opc2, opc3, inval, type); \ |
| 178 |
static void gen_##name (DisasContext *ctx) |
| 179 |
|
| 180 |
typedef struct opcode_t { |
| 181 |
unsigned char opc1, opc2, opc3; |
| 182 |
opc_handler_t handler; |
| 183 |
} opcode_t; |
| 184 |
|
| 185 |
/*** Instruction decoding ***/
|
| 186 |
#define EXTRACT_HELPER(name, shift, nb) \
|
| 187 |
static inline uint32_t name (uint32_t opcode) \ |
| 188 |
{ \
|
| 189 |
return (opcode >> (shift)) & ((1 << (nb)) - 1); \ |
| 190 |
} |
| 191 |
|
| 192 |
#define EXTRACT_SHELPER(name, shift, nb) \
|
| 193 |
static inline int32_t name (uint32_t opcode) \ |
| 194 |
{ \
|
| 195 |
return s_ext16((opcode >> (shift)) & ((1 << (nb)) - 1)); \ |
| 196 |
} |
| 197 |
|
| 198 |
/* Opcode part 1 */
|
| 199 |
EXTRACT_HELPER(opc1, 26, 6); |
| 200 |
/* Opcode part 2 */
|
| 201 |
EXTRACT_HELPER(opc2, 1, 5); |
| 202 |
/* Opcode part 3 */
|
| 203 |
EXTRACT_HELPER(opc3, 6, 5); |
| 204 |
/* Update Cr0 flags */
|
| 205 |
EXTRACT_HELPER(Rc, 0, 1); |
| 206 |
/* Destination */
|
| 207 |
EXTRACT_HELPER(rD, 21, 5); |
| 208 |
/* Source */
|
| 209 |
EXTRACT_HELPER(rS, 21, 5); |
| 210 |
/* First operand */
|
| 211 |
EXTRACT_HELPER(rA, 16, 5); |
| 212 |
/* Second operand */
|
| 213 |
EXTRACT_HELPER(rB, 11, 5); |
| 214 |
/* Third operand */
|
| 215 |
EXTRACT_HELPER(rC, 6, 5); |
| 216 |
/*** Get CRn ***/
|
| 217 |
EXTRACT_HELPER(crfD, 23, 3); |
| 218 |
EXTRACT_HELPER(crfS, 18, 3); |
| 219 |
EXTRACT_HELPER(crbD, 21, 5); |
| 220 |
EXTRACT_HELPER(crbA, 16, 5); |
| 221 |
EXTRACT_HELPER(crbB, 11, 5); |
| 222 |
/* SPR / TBL */
|
| 223 |
EXTRACT_HELPER(SPR, 11, 10); |
| 224 |
/*** Get constants ***/
|
| 225 |
EXTRACT_HELPER(IMM, 12, 8); |
| 226 |
/* 16 bits signed immediate value */
|
| 227 |
EXTRACT_SHELPER(SIMM, 0, 16); |
| 228 |
/* 16 bits unsigned immediate value */
|
| 229 |
EXTRACT_HELPER(UIMM, 0, 16); |
| 230 |
/* Bit count */
|
| 231 |
EXTRACT_HELPER(NB, 11, 5); |
| 232 |
/* Shift count */
|
| 233 |
EXTRACT_HELPER(SH, 11, 5); |
| 234 |
/* Mask start */
|
| 235 |
EXTRACT_HELPER(MB, 6, 5); |
| 236 |
/* Mask end */
|
| 237 |
EXTRACT_HELPER(ME, 1, 5); |
| 238 |
/* Trap operand */
|
| 239 |
EXTRACT_HELPER(TO, 21, 5); |
| 240 |
|
| 241 |
EXTRACT_HELPER(CRM, 12, 8); |
| 242 |
EXTRACT_HELPER(FM, 17, 8); |
| 243 |
EXTRACT_HELPER(SR, 16, 4); |
| 244 |
EXTRACT_HELPER(FPIMM, 20, 4); |
| 245 |
|
| 246 |
/*** Jump target decoding ***/
|
| 247 |
/* Displacement */
|
| 248 |
EXTRACT_SHELPER(d, 0, 16); |
| 249 |
/* Immediate address */
|
| 250 |
static inline uint32_t LI (uint32_t opcode) |
| 251 |
{
|
| 252 |
return (opcode >> 0) & 0x03FFFFFC; |
| 253 |
} |
| 254 |
|
| 255 |
static inline uint32_t BD (uint32_t opcode) |
| 256 |
{
|
| 257 |
return (opcode >> 0) & 0xFFFC; |
| 258 |
} |
| 259 |
|
| 260 |
EXTRACT_HELPER(BO, 21, 5); |
| 261 |
EXTRACT_HELPER(BI, 16, 5); |
| 262 |
/* Absolute/relative address */
|
| 263 |
EXTRACT_HELPER(AA, 1, 1); |
| 264 |
/* Link */
|
| 265 |
EXTRACT_HELPER(LK, 0, 1); |
| 266 |
|
| 267 |
/* Create a mask between <start> and <end> bits */
|
| 268 |
static inline uint32_t MASK (uint32_t start, uint32_t end) |
| 269 |
{
|
| 270 |
uint32_t ret; |
| 271 |
|
| 272 |
ret = (((uint32_t)(-1)) >> (start)) ^ (((uint32_t)(-1) >> (end)) >> 1); |
| 273 |
if (start > end)
|
| 274 |
return ~ret;
|
| 275 |
|
| 276 |
return ret;
|
| 277 |
} |
| 278 |
|
| 279 |
#define GEN_OPCODE(name, op1, op2, op3, invl, _typ) \
|
| 280 |
__attribute__ ((section(".opcodes"), unused, aligned (8) )) \ |
| 281 |
static opcode_t opc_##name = { \ |
| 282 |
.opc1 = op1, \ |
| 283 |
.opc2 = op2, \ |
| 284 |
.opc3 = op3, \ |
| 285 |
.handler = { \
|
| 286 |
.inval = invl, \ |
| 287 |
.type = _typ, \ |
| 288 |
.handler = &gen_##name, \ |
| 289 |
}, \ |
| 290 |
} |
| 291 |
|
| 292 |
#define GEN_OPCODE_MARK(name) \
|
| 293 |
__attribute__ ((section(".opcodes"), unused, aligned (8) )) \ |
| 294 |
static opcode_t opc_##name = { \ |
| 295 |
.opc1 = 0xFF, \
|
| 296 |
.opc2 = 0xFF, \
|
| 297 |
.opc3 = 0xFF, \
|
| 298 |
.handler = { \
|
| 299 |
.inval = 0x00000000, \
|
| 300 |
.type = 0x00, \
|
| 301 |
.handler = NULL, \
|
| 302 |
}, \ |
| 303 |
} |
| 304 |
|
| 305 |
/* Start opcode list */
|
| 306 |
GEN_OPCODE_MARK(start); |
| 307 |
|
| 308 |
/* Invalid instruction */
|
| 309 |
GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, PPC_NONE) |
| 310 |
{
|
| 311 |
RET_INVAL(ctx); |
| 312 |
} |
| 313 |
|
| 314 |
/* Special opcode to stop emulation */
|
| 315 |
GEN_HANDLER(stop, 0x06, 0x00, 0xFF, 0x03FFFFC1, PPC_COMMON) |
| 316 |
{
|
| 317 |
RET_EXCP(ctx, EXCP_HLT, 0);
|
| 318 |
} |
| 319 |
|
| 320 |
/* Special opcode to call open-firmware */
|
| 321 |
GEN_HANDLER(of_enter, 0x06, 0x01, 0xFF, 0x03FFFFC1, PPC_COMMON) |
| 322 |
{
|
| 323 |
RET_EXCP(ctx, EXCP_OFCALL, 0);
|
| 324 |
} |
| 325 |
|
| 326 |
/* Special opcode to call RTAS */
|
| 327 |
GEN_HANDLER(rtas_enter, 0x06, 0x02, 0xFF, 0x03FFFFC1, PPC_COMMON) |
| 328 |
{
|
| 329 |
printf("RTAS entry point !\n");
|
| 330 |
RET_EXCP(ctx, EXCP_RTASCALL, 0);
|
| 331 |
} |
| 332 |
|
| 333 |
static opc_handler_t invalid_handler = {
|
| 334 |
.inval = 0xFFFFFFFF,
|
| 335 |
.type = PPC_NONE, |
| 336 |
.handler = gen_invalid, |
| 337 |
}; |
| 338 |
|
| 339 |
/*** Integer arithmetic ***/
|
| 340 |
#define __GEN_INT_ARITH2(name, opc1, opc2, opc3, inval) \
|
| 341 |
GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ |
| 342 |
{ \
|
| 343 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 344 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 345 |
gen_op_##name(); \ |
| 346 |
if (Rc(ctx->opcode) != 0) \ |
| 347 |
gen_op_set_Rc0(); \ |
| 348 |
gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 349 |
} |
| 350 |
|
| 351 |
#define __GEN_INT_ARITH2_O(name, opc1, opc2, opc3, inval) \
|
| 352 |
GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ |
| 353 |
{ \
|
| 354 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 355 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 356 |
gen_op_##name(); \ |
| 357 |
if (Rc(ctx->opcode) != 0) \ |
| 358 |
gen_op_set_Rc0_ov(); \ |
| 359 |
gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 360 |
} |
| 361 |
|
| 362 |
#define __GEN_INT_ARITH1(name, opc1, opc2, opc3) \
|
| 363 |
GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
|
| 364 |
{ \
|
| 365 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 366 |
gen_op_##name(); \ |
| 367 |
if (Rc(ctx->opcode) != 0) \ |
| 368 |
gen_op_set_Rc0(); \ |
| 369 |
gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 370 |
} |
| 371 |
#define __GEN_INT_ARITH1_O(name, opc1, opc2, opc3) \
|
| 372 |
GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
|
| 373 |
{ \
|
| 374 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 375 |
gen_op_##name(); \ |
| 376 |
if (Rc(ctx->opcode) != 0) \ |
| 377 |
gen_op_set_Rc0_ov(); \ |
| 378 |
gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 379 |
} |
| 380 |
|
| 381 |
/* Two operands arithmetic functions */
|
| 382 |
#define GEN_INT_ARITH2(name, opc1, opc2, opc3) \
|
| 383 |
__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000000) \
|
| 384 |
__GEN_INT_ARITH2_O(name##o, opc1, opc2, opc3 | 0x10, 0x00000000) |
| 385 |
|
| 386 |
/* Two operands arithmetic functions with no overflow allowed */
|
| 387 |
#define GEN_INT_ARITHN(name, opc1, opc2, opc3) \
|
| 388 |
__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000400)
|
| 389 |
|
| 390 |
/* One operand arithmetic functions */
|
| 391 |
#define GEN_INT_ARITH1(name, opc1, opc2, opc3) \
|
| 392 |
__GEN_INT_ARITH1(name, opc1, opc2, opc3) \ |
| 393 |
__GEN_INT_ARITH1_O(name##o, opc1, opc2, opc3 | 0x10) |
| 394 |
|
| 395 |
/* add add. addo addo. */
|
| 396 |
GEN_INT_ARITH2 (add, 0x1F, 0x0A, 0x08); |
| 397 |
/* addc addc. addco addco. */
|
| 398 |
GEN_INT_ARITH2 (addc, 0x1F, 0x0A, 0x00); |
| 399 |
/* adde adde. addeo addeo. */
|
| 400 |
GEN_INT_ARITH2 (adde, 0x1F, 0x0A, 0x04); |
| 401 |
/* addme addme. addmeo addmeo. */
|
| 402 |
GEN_INT_ARITH1 (addme, 0x1F, 0x0A, 0x07); |
| 403 |
/* addze addze. addzeo addzeo. */
|
| 404 |
GEN_INT_ARITH1 (addze, 0x1F, 0x0A, 0x06); |
| 405 |
/* divw divw. divwo divwo. */
|
| 406 |
GEN_INT_ARITH2 (divw, 0x1F, 0x0B, 0x0F); |
| 407 |
/* divwu divwu. divwuo divwuo. */
|
| 408 |
GEN_INT_ARITH2 (divwu, 0x1F, 0x0B, 0x0E); |
| 409 |
/* mulhw mulhw. */
|
| 410 |
GEN_INT_ARITHN (mulhw, 0x1F, 0x0B, 0x02); |
| 411 |
/* mulhwu mulhwu. */
|
| 412 |
GEN_INT_ARITHN (mulhwu, 0x1F, 0x0B, 0x00); |
| 413 |
/* mullw mullw. mullwo mullwo. */
|
| 414 |
GEN_INT_ARITH2 (mullw, 0x1F, 0x0B, 0x07); |
| 415 |
/* neg neg. nego nego. */
|
| 416 |
GEN_INT_ARITH1 (neg, 0x1F, 0x08, 0x03); |
| 417 |
/* subf subf. subfo subfo. */
|
| 418 |
GEN_INT_ARITH2 (subf, 0x1F, 0x08, 0x01); |
| 419 |
/* subfc subfc. subfco subfco. */
|
| 420 |
GEN_INT_ARITH2 (subfc, 0x1F, 0x08, 0x00); |
| 421 |
/* subfe subfe. subfeo subfeo. */
|
| 422 |
GEN_INT_ARITH2 (subfe, 0x1F, 0x08, 0x04); |
| 423 |
/* subfme subfme. subfmeo subfmeo. */
|
| 424 |
GEN_INT_ARITH1 (subfme, 0x1F, 0x08, 0x07); |
| 425 |
/* subfze subfze. subfzeo subfzeo. */
|
| 426 |
GEN_INT_ARITH1 (subfze, 0x1F, 0x08, 0x06); |
| 427 |
/* addi */
|
| 428 |
GEN_HANDLER(addi, 0x0E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 429 |
{
|
| 430 |
int32_t simm = SIMM(ctx->opcode); |
| 431 |
|
| 432 |
if (rA(ctx->opcode) == 0) { |
| 433 |
gen_op_set_T0(simm); |
| 434 |
} else {
|
| 435 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 436 |
gen_op_addi(simm); |
| 437 |
} |
| 438 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 439 |
} |
| 440 |
/* addic */
|
| 441 |
GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 442 |
{
|
| 443 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 444 |
gen_op_addic(SIMM(ctx->opcode)); |
| 445 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 446 |
} |
| 447 |
/* addic. */
|
| 448 |
GEN_HANDLER(addic_, 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 449 |
{
|
| 450 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 451 |
gen_op_addic(SIMM(ctx->opcode)); |
| 452 |
gen_op_set_Rc0(); |
| 453 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 454 |
} |
| 455 |
/* addis */
|
| 456 |
GEN_HANDLER(addis, 0x0F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 457 |
{
|
| 458 |
int32_t simm = SIMM(ctx->opcode); |
| 459 |
|
| 460 |
if (rA(ctx->opcode) == 0) { |
| 461 |
gen_op_set_T0(simm << 16);
|
| 462 |
} else {
|
| 463 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 464 |
gen_op_addi(simm << 16);
|
| 465 |
} |
| 466 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 467 |
} |
| 468 |
/* mulli */
|
| 469 |
GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 470 |
{
|
| 471 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 472 |
gen_op_mulli(SIMM(ctx->opcode)); |
| 473 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 474 |
} |
| 475 |
/* subfic */
|
| 476 |
GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 477 |
{
|
| 478 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 479 |
gen_op_subfic(SIMM(ctx->opcode)); |
| 480 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 481 |
} |
| 482 |
|
| 483 |
/*** Integer comparison ***/
|
| 484 |
#define GEN_CMP(name, opc) \
|
| 485 |
GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, PPC_INTEGER) \ |
| 486 |
{ \
|
| 487 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 488 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 489 |
gen_op_##name(); \ |
| 490 |
gen_op_store_T0_crf(crfD(ctx->opcode)); \ |
| 491 |
} |
| 492 |
|
| 493 |
/* cmp */
|
| 494 |
GEN_CMP(cmp, 0x00);
|
| 495 |
/* cmpi */
|
| 496 |
GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) |
| 497 |
{
|
| 498 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 499 |
gen_op_cmpi(SIMM(ctx->opcode)); |
| 500 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 501 |
} |
| 502 |
/* cmpl */
|
| 503 |
GEN_CMP(cmpl, 0x01);
|
| 504 |
/* cmpli */
|
| 505 |
GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) |
| 506 |
{
|
| 507 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 508 |
gen_op_cmpli(UIMM(ctx->opcode)); |
| 509 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 510 |
} |
| 511 |
|
| 512 |
/*** Integer logical ***/
|
| 513 |
#define __GEN_LOGICAL2(name, opc2, opc3) \
|
| 514 |
GEN_HANDLER(name, 0x1F, opc2, opc3, 0x00000000, PPC_INTEGER) \ |
| 515 |
{ \
|
| 516 |
gen_op_load_gpr_T0(rS(ctx->opcode)); \ |
| 517 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 518 |
gen_op_##name(); \ |
| 519 |
if (Rc(ctx->opcode) != 0) \ |
| 520 |
gen_op_set_Rc0(); \ |
| 521 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 522 |
} |
| 523 |
#define GEN_LOGICAL2(name, opc) \
|
| 524 |
__GEN_LOGICAL2(name, 0x1C, opc)
|
| 525 |
|
| 526 |
#define GEN_LOGICAL1(name, opc) \
|
| 527 |
GEN_HANDLER(name, 0x1F, 0x1A, opc, 0x00000000, PPC_INTEGER) \ |
| 528 |
{ \
|
| 529 |
gen_op_load_gpr_T0(rS(ctx->opcode)); \ |
| 530 |
gen_op_##name(); \ |
| 531 |
if (Rc(ctx->opcode) != 0) \ |
| 532 |
gen_op_set_Rc0(); \ |
| 533 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 534 |
} |
| 535 |
|
| 536 |
/* and & and. */
|
| 537 |
GEN_LOGICAL2(and, 0x00);
|
| 538 |
/* andc & andc. */
|
| 539 |
GEN_LOGICAL2(andc, 0x01);
|
| 540 |
/* andi. */
|
| 541 |
GEN_HANDLER(andi_, 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 542 |
{
|
| 543 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 544 |
gen_op_andi_(UIMM(ctx->opcode)); |
| 545 |
gen_op_set_Rc0(); |
| 546 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 547 |
} |
| 548 |
/* andis. */
|
| 549 |
GEN_HANDLER(andis_, 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 550 |
{
|
| 551 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 552 |
gen_op_andi_(UIMM(ctx->opcode) << 16);
|
| 553 |
gen_op_set_Rc0(); |
| 554 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 555 |
} |
| 556 |
|
| 557 |
/* cntlzw */
|
| 558 |
GEN_LOGICAL1(cntlzw, 0x00);
|
| 559 |
/* eqv & eqv. */
|
| 560 |
GEN_LOGICAL2(eqv, 0x08);
|
| 561 |
/* extsb & extsb. */
|
| 562 |
GEN_LOGICAL1(extsb, 0x1D);
|
| 563 |
/* extsh & extsh. */
|
| 564 |
GEN_LOGICAL1(extsh, 0x1C);
|
| 565 |
/* nand & nand. */
|
| 566 |
GEN_LOGICAL2(nand, 0x0E);
|
| 567 |
/* nor & nor. */
|
| 568 |
GEN_LOGICAL2(nor, 0x03);
|
| 569 |
|
| 570 |
/* or & or. */
|
| 571 |
GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER) |
| 572 |
{
|
| 573 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 574 |
/* Optimisation for mr case */
|
| 575 |
if (rS(ctx->opcode) != rB(ctx->opcode)) {
|
| 576 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 577 |
gen_op_or(); |
| 578 |
} |
| 579 |
if (Rc(ctx->opcode) != 0) |
| 580 |
gen_op_set_Rc0(); |
| 581 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 582 |
} |
| 583 |
|
| 584 |
/* orc & orc. */
|
| 585 |
GEN_LOGICAL2(orc, 0x0C);
|
| 586 |
/* xor & xor. */
|
| 587 |
GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER) |
| 588 |
{
|
| 589 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 590 |
/* Optimisation for "set to zero" case */
|
| 591 |
if (rS(ctx->opcode) != rB(ctx->opcode)) {
|
| 592 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 593 |
gen_op_xor(); |
| 594 |
} else {
|
| 595 |
gen_op_set_T0(0);
|
| 596 |
} |
| 597 |
if (Rc(ctx->opcode) != 0) |
| 598 |
gen_op_set_Rc0(); |
| 599 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 600 |
} |
| 601 |
/* ori */
|
| 602 |
GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 603 |
{
|
| 604 |
uint32_t uimm = UIMM(ctx->opcode); |
| 605 |
|
| 606 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 607 |
/* NOP */
|
| 608 |
return;
|
| 609 |
} |
| 610 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 611 |
if (uimm != 0) |
| 612 |
gen_op_ori(uimm); |
| 613 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 614 |
} |
| 615 |
/* oris */
|
| 616 |
GEN_HANDLER(oris, 0x19, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 617 |
{
|
| 618 |
uint32_t uimm = UIMM(ctx->opcode); |
| 619 |
|
| 620 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 621 |
/* NOP */
|
| 622 |
return;
|
| 623 |
} |
| 624 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 625 |
if (uimm != 0) |
| 626 |
gen_op_ori(uimm << 16);
|
| 627 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 628 |
} |
| 629 |
/* xori */
|
| 630 |
GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 631 |
{
|
| 632 |
uint32_t uimm = UIMM(ctx->opcode); |
| 633 |
|
| 634 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 635 |
/* NOP */
|
| 636 |
return;
|
| 637 |
} |
| 638 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 639 |
if (uimm != 0) |
| 640 |
gen_op_xori(uimm); |
| 641 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 642 |
} |
| 643 |
|
| 644 |
/* xoris */
|
| 645 |
GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 646 |
{
|
| 647 |
uint32_t uimm = UIMM(ctx->opcode); |
| 648 |
|
| 649 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 650 |
/* NOP */
|
| 651 |
return;
|
| 652 |
} |
| 653 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 654 |
if (uimm != 0) |
| 655 |
gen_op_xori(uimm << 16);
|
| 656 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 657 |
} |
| 658 |
|
| 659 |
/*** Integer rotate ***/
|
| 660 |
/* rlwimi & rlwimi. */
|
| 661 |
GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 662 |
{
|
| 663 |
uint32_t mb, me; |
| 664 |
|
| 665 |
mb = MB(ctx->opcode); |
| 666 |
me = ME(ctx->opcode); |
| 667 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 668 |
gen_op_load_gpr_T1(rA(ctx->opcode)); |
| 669 |
gen_op_rlwimi(SH(ctx->opcode), MASK(mb, me), ~MASK(mb, me)); |
| 670 |
if (Rc(ctx->opcode) != 0) |
| 671 |
gen_op_set_Rc0(); |
| 672 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 673 |
} |
| 674 |
/* rlwinm & rlwinm. */
|
| 675 |
GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 676 |
{
|
| 677 |
uint32_t mb, me, sh; |
| 678 |
|
| 679 |
sh = SH(ctx->opcode); |
| 680 |
mb = MB(ctx->opcode); |
| 681 |
me = ME(ctx->opcode); |
| 682 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 683 |
#if 1 // TRY |
| 684 |
if (sh == 0) { |
| 685 |
gen_op_andi_(MASK(mb, me)); |
| 686 |
goto store;
|
| 687 |
} |
| 688 |
#endif
|
| 689 |
if (mb == 0) { |
| 690 |
if (me == 31) { |
| 691 |
gen_op_rotlwi(sh); |
| 692 |
goto store;
|
| 693 |
#if 0
|
| 694 |
} else if (me == (31 - sh)) {
|
| 695 |
gen_op_slwi(sh);
|
| 696 |
goto store;
|
| 697 |
#endif
|
| 698 |
} |
| 699 |
} else if (me == 31) { |
| 700 |
#if 0
|
| 701 |
if (sh == (32 - mb)) {
|
| 702 |
gen_op_srwi(mb);
|
| 703 |
goto store;
|
| 704 |
}
|
| 705 |
#endif
|
| 706 |
} |
| 707 |
gen_op_rlwinm(sh, MASK(mb, me)); |
| 708 |
store:
|
| 709 |
if (Rc(ctx->opcode) != 0) |
| 710 |
gen_op_set_Rc0(); |
| 711 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 712 |
} |
| 713 |
/* rlwnm & rlwnm. */
|
| 714 |
GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 715 |
{
|
| 716 |
uint32_t mb, me; |
| 717 |
|
| 718 |
mb = MB(ctx->opcode); |
| 719 |
me = ME(ctx->opcode); |
| 720 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 721 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 722 |
if (mb == 0 && me == 31) { |
| 723 |
gen_op_rotl(); |
| 724 |
} else
|
| 725 |
{
|
| 726 |
gen_op_rlwnm(MASK(mb, me)); |
| 727 |
} |
| 728 |
if (Rc(ctx->opcode) != 0) |
| 729 |
gen_op_set_Rc0(); |
| 730 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 731 |
} |
| 732 |
|
| 733 |
/*** Integer shift ***/
|
| 734 |
/* slw & slw. */
|
| 735 |
__GEN_LOGICAL2(slw, 0x18, 0x00); |
| 736 |
/* sraw & sraw. */
|
| 737 |
__GEN_LOGICAL2(sraw, 0x18, 0x18); |
| 738 |
/* srawi & srawi. */
|
| 739 |
GEN_HANDLER(srawi, 0x1F, 0x18, 0x19, 0x00000000, PPC_INTEGER) |
| 740 |
{
|
| 741 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 742 |
gen_op_srawi(SH(ctx->opcode), MASK(32 - SH(ctx->opcode), 31)); |
| 743 |
if (Rc(ctx->opcode) != 0) |
| 744 |
gen_op_set_Rc0(); |
| 745 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 746 |
} |
| 747 |
/* srw & srw. */
|
| 748 |
__GEN_LOGICAL2(srw, 0x18, 0x10); |
| 749 |
|
| 750 |
/*** Floating-Point arithmetic ***/
|
| 751 |
#define _GEN_FLOAT_ACB(name, op1, op2) \
|
| 752 |
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 753 |
{ \
|
| 754 |
gen_op_reset_scrfx(); \ |
| 755 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 756 |
gen_op_load_fpr_FT1(rC(ctx->opcode)); \ |
| 757 |
gen_op_load_fpr_FT2(rB(ctx->opcode)); \ |
| 758 |
gen_op_f##name(); \ |
| 759 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 760 |
if (Rc(ctx->opcode)) \
|
| 761 |
gen_op_set_Rc1(); \ |
| 762 |
} |
| 763 |
|
| 764 |
#define GEN_FLOAT_ACB(name, op2) \
|
| 765 |
_GEN_FLOAT_ACB(name, 0x3F, op2); \
|
| 766 |
_GEN_FLOAT_ACB(name##s, 0x3B, op2); |
| 767 |
|
| 768 |
#define _GEN_FLOAT_AB(name, op1, op2, inval) \
|
| 769 |
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ |
| 770 |
{ \
|
| 771 |
gen_op_reset_scrfx(); \ |
| 772 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 773 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); \ |
| 774 |
gen_op_f##name(); \ |
| 775 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 776 |
if (Rc(ctx->opcode)) \
|
| 777 |
gen_op_set_Rc1(); \ |
| 778 |
} |
| 779 |
#define GEN_FLOAT_AB(name, op2, inval) \
|
| 780 |
_GEN_FLOAT_AB(name, 0x3F, op2, inval); \
|
| 781 |
_GEN_FLOAT_AB(name##s, 0x3B, op2, inval); |
| 782 |
|
| 783 |
#define _GEN_FLOAT_AC(name, op1, op2, inval) \
|
| 784 |
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ |
| 785 |
{ \
|
| 786 |
gen_op_reset_scrfx(); \ |
| 787 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 788 |
gen_op_load_fpr_FT1(rC(ctx->opcode)); \ |
| 789 |
gen_op_f##name(); \ |
| 790 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 791 |
if (Rc(ctx->opcode)) \
|
| 792 |
gen_op_set_Rc1(); \ |
| 793 |
} |
| 794 |
#define GEN_FLOAT_AC(name, op2, inval) \
|
| 795 |
_GEN_FLOAT_AC(name, 0x3F, op2, inval); \
|
| 796 |
_GEN_FLOAT_AC(name##s, 0x3B, op2, inval); |
| 797 |
|
| 798 |
#define GEN_FLOAT_B(name, op2, op3) \
|
| 799 |
GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, PPC_FLOAT) \ |
| 800 |
{ \
|
| 801 |
gen_op_reset_scrfx(); \ |
| 802 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); \ |
| 803 |
gen_op_f##name(); \ |
| 804 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 805 |
if (Rc(ctx->opcode)) \
|
| 806 |
gen_op_set_Rc1(); \ |
| 807 |
} |
| 808 |
|
| 809 |
#define GEN_FLOAT_BS(name, op2) \
|
| 810 |
GEN_HANDLER(f##name, 0x3F, op2, 0xFF, 0x001F07C0, PPC_FLOAT) \ |
| 811 |
{ \
|
| 812 |
gen_op_reset_scrfx(); \ |
| 813 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); \ |
| 814 |
gen_op_f##name(); \ |
| 815 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 816 |
if (Rc(ctx->opcode)) \
|
| 817 |
gen_op_set_Rc1(); \ |
| 818 |
} |
| 819 |
|
| 820 |
/* fadd - fadds */
|
| 821 |
GEN_FLOAT_AB(add, 0x15, 0x000007C0); |
| 822 |
/* fdiv */
|
| 823 |
GEN_FLOAT_AB(div, 0x12, 0x000007C0); |
| 824 |
/* fmul */
|
| 825 |
GEN_FLOAT_AC(mul, 0x19, 0x0000F800); |
| 826 |
|
| 827 |
/* fres */
|
| 828 |
GEN_FLOAT_BS(res, 0x18);
|
| 829 |
|
| 830 |
/* frsqrte */
|
| 831 |
GEN_FLOAT_BS(rsqrte, 0x1A);
|
| 832 |
|
| 833 |
/* fsel */
|
| 834 |
_GEN_FLOAT_ACB(sel, 0x3F, 0x17); |
| 835 |
/* fsub */
|
| 836 |
GEN_FLOAT_AB(sub, 0x14, 0x000007C0); |
| 837 |
/* Optional: */
|
| 838 |
/* fsqrt */
|
| 839 |
GEN_FLOAT_BS(sqrt, 0x16);
|
| 840 |
|
| 841 |
GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_OPT) |
| 842 |
{
|
| 843 |
gen_op_reset_scrfx(); |
| 844 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 845 |
gen_op_fsqrts(); |
| 846 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 847 |
if (Rc(ctx->opcode))
|
| 848 |
gen_op_set_Rc1(); |
| 849 |
} |
| 850 |
|
| 851 |
/*** Floating-Point multiply-and-add ***/
|
| 852 |
/* fmadd */
|
| 853 |
GEN_FLOAT_ACB(madd, 0x1D);
|
| 854 |
/* fmsub */
|
| 855 |
GEN_FLOAT_ACB(msub, 0x1C);
|
| 856 |
/* fnmadd */
|
| 857 |
GEN_FLOAT_ACB(nmadd, 0x1F);
|
| 858 |
/* fnmsub */
|
| 859 |
GEN_FLOAT_ACB(nmsub, 0x1E);
|
| 860 |
|
| 861 |
/*** Floating-Point round & convert ***/
|
| 862 |
/* fctiw */
|
| 863 |
GEN_FLOAT_B(ctiw, 0x0E, 0x00); |
| 864 |
/* fctiwz */
|
| 865 |
GEN_FLOAT_B(ctiwz, 0x0F, 0x00); |
| 866 |
/* frsp */
|
| 867 |
GEN_FLOAT_B(rsp, 0x0C, 0x00); |
| 868 |
|
| 869 |
/*** Floating-Point compare ***/
|
| 870 |
/* fcmpo */
|
| 871 |
GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT) |
| 872 |
{
|
| 873 |
gen_op_reset_scrfx(); |
| 874 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); |
| 875 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); |
| 876 |
gen_op_fcmpo(); |
| 877 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 878 |
} |
| 879 |
|
| 880 |
/* fcmpu */
|
| 881 |
GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT) |
| 882 |
{
|
| 883 |
gen_op_reset_scrfx(); |
| 884 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); |
| 885 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); |
| 886 |
gen_op_fcmpu(); |
| 887 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 888 |
} |
| 889 |
|
| 890 |
/*** Floating-point move ***/
|
| 891 |
/* fabs */
|
| 892 |
GEN_FLOAT_B(abs, 0x08, 0x08); |
| 893 |
|
| 894 |
/* fmr - fmr. */
|
| 895 |
GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT) |
| 896 |
{
|
| 897 |
gen_op_reset_scrfx(); |
| 898 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 899 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 900 |
if (Rc(ctx->opcode))
|
| 901 |
gen_op_set_Rc1(); |
| 902 |
} |
| 903 |
|
| 904 |
/* fnabs */
|
| 905 |
GEN_FLOAT_B(nabs, 0x08, 0x04); |
| 906 |
/* fneg */
|
| 907 |
GEN_FLOAT_B(neg, 0x08, 0x01); |
| 908 |
|
| 909 |
/*** Floating-Point status & ctrl register ***/
|
| 910 |
/* mcrfs */
|
| 911 |
GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT) |
| 912 |
{
|
| 913 |
gen_op_load_fpscr_T0(crfS(ctx->opcode)); |
| 914 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 915 |
gen_op_clear_fpscr(crfS(ctx->opcode)); |
| 916 |
} |
| 917 |
|
| 918 |
/* mffs */
|
| 919 |
GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT) |
| 920 |
{
|
| 921 |
gen_op_load_fpscr(); |
| 922 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 923 |
if (Rc(ctx->opcode))
|
| 924 |
gen_op_set_Rc1(); |
| 925 |
} |
| 926 |
|
| 927 |
/* mtfsb0 */
|
| 928 |
GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT) |
| 929 |
{
|
| 930 |
uint8_t crb; |
| 931 |
|
| 932 |
crb = crbD(ctx->opcode) >> 2;
|
| 933 |
gen_op_load_fpscr_T0(crb); |
| 934 |
gen_op_andi_(~(1 << (crbD(ctx->opcode) & 0x03))); |
| 935 |
gen_op_store_T0_fpscr(crb); |
| 936 |
if (Rc(ctx->opcode))
|
| 937 |
gen_op_set_Rc1(); |
| 938 |
} |
| 939 |
|
| 940 |
/* mtfsb1 */
|
| 941 |
GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT) |
| 942 |
{
|
| 943 |
uint8_t crb; |
| 944 |
|
| 945 |
crb = crbD(ctx->opcode) >> 2;
|
| 946 |
gen_op_load_fpscr_T0(crb); |
| 947 |
gen_op_ori(1 << (crbD(ctx->opcode) & 0x03)); |
| 948 |
gen_op_store_T0_fpscr(crb); |
| 949 |
if (Rc(ctx->opcode))
|
| 950 |
gen_op_set_Rc1(); |
| 951 |
} |
| 952 |
|
| 953 |
/* mtfsf */
|
| 954 |
GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT) |
| 955 |
{
|
| 956 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 957 |
gen_op_store_fpscr(FM(ctx->opcode)); |
| 958 |
if (Rc(ctx->opcode))
|
| 959 |
gen_op_set_Rc1(); |
| 960 |
} |
| 961 |
|
| 962 |
/* mtfsfi */
|
| 963 |
GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT) |
| 964 |
{
|
| 965 |
gen_op_store_T0_fpscri(crbD(ctx->opcode) >> 2, FPIMM(ctx->opcode));
|
| 966 |
if (Rc(ctx->opcode))
|
| 967 |
gen_op_set_Rc1(); |
| 968 |
} |
| 969 |
|
| 970 |
/*** Integer load ***/
|
| 971 |
#if defined(CONFIG_USER_ONLY)
|
| 972 |
#define op_ldst(name) gen_op_##name##_raw() |
| 973 |
#define OP_LD_TABLE(width)
|
| 974 |
#define OP_ST_TABLE(width)
|
| 975 |
#else
|
| 976 |
#define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() |
| 977 |
#define OP_LD_TABLE(width) \
|
| 978 |
static GenOpFunc *gen_op_l##width[] = { \ |
| 979 |
&gen_op_l##width##_user, \ |
| 980 |
&gen_op_l##width##_kernel, \ |
| 981 |
} |
| 982 |
#define OP_ST_TABLE(width) \
|
| 983 |
static GenOpFunc *gen_op_st##width[] = { \ |
| 984 |
&gen_op_st##width##_user, \ |
| 985 |
&gen_op_st##width##_kernel, \ |
| 986 |
} |
| 987 |
#endif
|
| 988 |
|
| 989 |
#define GEN_LD(width, opc) \
|
| 990 |
GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 991 |
{ \
|
| 992 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 993 |
if (rA(ctx->opcode) == 0) { \ |
| 994 |
gen_op_set_T0(simm); \ |
| 995 |
} else { \
|
| 996 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 997 |
if (simm != 0) \ |
| 998 |
gen_op_addi(simm); \ |
| 999 |
} \ |
| 1000 |
op_ldst(l##width); \ |
| 1001 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1002 |
} |
| 1003 |
|
| 1004 |
#define GEN_LDU(width, opc) \
|
| 1005 |
GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1006 |
{ \
|
| 1007 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1008 |
if (rA(ctx->opcode) == 0 || \ |
| 1009 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1010 |
RET_INVAL(ctx); \ |
| 1011 |
return; \
|
| 1012 |
} \ |
| 1013 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1014 |
if (simm != 0) \ |
| 1015 |
gen_op_addi(simm); \ |
| 1016 |
op_ldst(l##width); \ |
| 1017 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1018 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1019 |
} |
| 1020 |
|
| 1021 |
#define GEN_LDUX(width, opc) \
|
| 1022 |
GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1023 |
{ \
|
| 1024 |
if (rA(ctx->opcode) == 0 || \ |
| 1025 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1026 |
RET_INVAL(ctx); \ |
| 1027 |
return; \
|
| 1028 |
} \ |
| 1029 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1030 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1031 |
gen_op_add(); \ |
| 1032 |
op_ldst(l##width); \ |
| 1033 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1034 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1035 |
} |
| 1036 |
|
| 1037 |
#define GEN_LDX(width, opc2, opc3) \
|
| 1038 |
GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1039 |
{ \
|
| 1040 |
if (rA(ctx->opcode) == 0) { \ |
| 1041 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1042 |
} else { \
|
| 1043 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1044 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1045 |
gen_op_add(); \ |
| 1046 |
} \ |
| 1047 |
op_ldst(l##width); \ |
| 1048 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1049 |
} |
| 1050 |
|
| 1051 |
#define GEN_LDS(width, op) \
|
| 1052 |
OP_LD_TABLE(width); \ |
| 1053 |
GEN_LD(width, op | 0x20); \
|
| 1054 |
GEN_LDU(width, op | 0x21); \
|
| 1055 |
GEN_LDUX(width, op | 0x01); \
|
| 1056 |
GEN_LDX(width, 0x17, op | 0x00) |
| 1057 |
|
| 1058 |
/* lbz lbzu lbzux lbzx */
|
| 1059 |
GEN_LDS(bz, 0x02);
|
| 1060 |
/* lha lhau lhaux lhax */
|
| 1061 |
GEN_LDS(ha, 0x0A);
|
| 1062 |
/* lhz lhzu lhzux lhzx */
|
| 1063 |
GEN_LDS(hz, 0x08);
|
| 1064 |
/* lwz lwzu lwzux lwzx */
|
| 1065 |
GEN_LDS(wz, 0x00);
|
| 1066 |
|
| 1067 |
/*** Integer store ***/
|
| 1068 |
#define GEN_ST(width, opc) \
|
| 1069 |
GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1070 |
{ \
|
| 1071 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1072 |
if (rA(ctx->opcode) == 0) { \ |
| 1073 |
gen_op_set_T0(simm); \ |
| 1074 |
} else { \
|
| 1075 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1076 |
if (simm != 0) \ |
| 1077 |
gen_op_addi(simm); \ |
| 1078 |
} \ |
| 1079 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1080 |
op_ldst(st##width); \ |
| 1081 |
} |
| 1082 |
|
| 1083 |
#define GEN_STU(width, opc) \
|
| 1084 |
GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1085 |
{ \
|
| 1086 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1087 |
if (rA(ctx->opcode) == 0) { \ |
| 1088 |
RET_INVAL(ctx); \ |
| 1089 |
return; \
|
| 1090 |
} \ |
| 1091 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1092 |
if (simm != 0) \ |
| 1093 |
gen_op_addi(simm); \ |
| 1094 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1095 |
op_ldst(st##width); \ |
| 1096 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1097 |
} |
| 1098 |
|
| 1099 |
#define GEN_STUX(width, opc) \
|
| 1100 |
GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1101 |
{ \
|
| 1102 |
if (rA(ctx->opcode) == 0) { \ |
| 1103 |
RET_INVAL(ctx); \ |
| 1104 |
return; \
|
| 1105 |
} \ |
| 1106 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1107 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1108 |
gen_op_add(); \ |
| 1109 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1110 |
op_ldst(st##width); \ |
| 1111 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1112 |
} |
| 1113 |
|
| 1114 |
#define GEN_STX(width, opc2, opc3) \
|
| 1115 |
GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1116 |
{ \
|
| 1117 |
if (rA(ctx->opcode) == 0) { \ |
| 1118 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1119 |
} else { \
|
| 1120 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1121 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1122 |
gen_op_add(); \ |
| 1123 |
} \ |
| 1124 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1125 |
op_ldst(st##width); \ |
| 1126 |
} |
| 1127 |
|
| 1128 |
#define GEN_STS(width, op) \
|
| 1129 |
OP_ST_TABLE(width); \ |
| 1130 |
GEN_ST(width, op | 0x20); \
|
| 1131 |
GEN_STU(width, op | 0x21); \
|
| 1132 |
GEN_STUX(width, op | 0x01); \
|
| 1133 |
GEN_STX(width, 0x17, op | 0x00) |
| 1134 |
|
| 1135 |
/* stb stbu stbux stbx */
|
| 1136 |
GEN_STS(b, 0x06);
|
| 1137 |
/* sth sthu sthux sthx */
|
| 1138 |
GEN_STS(h, 0x0C);
|
| 1139 |
/* stw stwu stwux stwx */
|
| 1140 |
GEN_STS(w, 0x04);
|
| 1141 |
|
| 1142 |
/*** Integer load and store with byte reverse ***/
|
| 1143 |
/* lhbrx */
|
| 1144 |
OP_LD_TABLE(hbr); |
| 1145 |
GEN_LDX(hbr, 0x16, 0x18); |
| 1146 |
/* lwbrx */
|
| 1147 |
OP_LD_TABLE(wbr); |
| 1148 |
GEN_LDX(wbr, 0x16, 0x10); |
| 1149 |
/* sthbrx */
|
| 1150 |
OP_ST_TABLE(hbr); |
| 1151 |
GEN_STX(hbr, 0x16, 0x1C); |
| 1152 |
/* stwbrx */
|
| 1153 |
OP_ST_TABLE(wbr); |
| 1154 |
GEN_STX(wbr, 0x16, 0x14); |
| 1155 |
|
| 1156 |
/*** Integer load and store multiple ***/
|
| 1157 |
#if defined(CONFIG_USER_ONLY)
|
| 1158 |
#define op_ldstm(name, reg) gen_op_##name##_raw(reg) |
| 1159 |
#else
|
| 1160 |
#define op_ldstm(name, reg) (*gen_op_##name[ctx->mem_idx])(reg) |
| 1161 |
static GenOpFunc1 *gen_op_lmw[] = {
|
| 1162 |
&gen_op_lmw_user, |
| 1163 |
&gen_op_lmw_kernel, |
| 1164 |
}; |
| 1165 |
static GenOpFunc1 *gen_op_stmw[] = {
|
| 1166 |
&gen_op_stmw_user, |
| 1167 |
&gen_op_stmw_kernel, |
| 1168 |
}; |
| 1169 |
#endif
|
| 1170 |
|
| 1171 |
/* lmw */
|
| 1172 |
GEN_HANDLER(lmw, 0x2E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 1173 |
{
|
| 1174 |
int simm = SIMM(ctx->opcode);
|
| 1175 |
|
| 1176 |
if (rA(ctx->opcode) == 0) { |
| 1177 |
gen_op_set_T0(simm); |
| 1178 |
} else {
|
| 1179 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1180 |
if (simm != 0) |
| 1181 |
gen_op_addi(simm); |
| 1182 |
} |
| 1183 |
op_ldstm(lmw, rD(ctx->opcode)); |
| 1184 |
} |
| 1185 |
|
| 1186 |
/* stmw */
|
| 1187 |
GEN_HANDLER(stmw, 0x2F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 1188 |
{
|
| 1189 |
int simm = SIMM(ctx->opcode);
|
| 1190 |
|
| 1191 |
if (rA(ctx->opcode) == 0) { |
| 1192 |
gen_op_set_T0(simm); |
| 1193 |
} else {
|
| 1194 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1195 |
if (simm != 0) |
| 1196 |
gen_op_addi(simm); |
| 1197 |
} |
| 1198 |
op_ldstm(stmw, rS(ctx->opcode)); |
| 1199 |
} |
| 1200 |
|
| 1201 |
/*** Integer load and store strings ***/
|
| 1202 |
#if defined(CONFIG_USER_ONLY)
|
| 1203 |
#define op_ldsts(name, start) gen_op_##name##_raw(start) |
| 1204 |
#define op_ldstsx(name, rd, ra, rb) gen_op_##name##_raw(rd, ra, rb) |
| 1205 |
#else
|
| 1206 |
#define op_ldsts(name, start) (*gen_op_##name[ctx->mem_idx])(start) |
| 1207 |
#define op_ldstsx(name, rd, ra, rb) (*gen_op_##name[ctx->mem_idx])(rd, ra, rb) |
| 1208 |
static GenOpFunc1 *gen_op_lswi[] = {
|
| 1209 |
&gen_op_lswi_user, |
| 1210 |
&gen_op_lswi_kernel, |
| 1211 |
}; |
| 1212 |
static GenOpFunc3 *gen_op_lswx[] = {
|
| 1213 |
&gen_op_lswx_user, |
| 1214 |
&gen_op_lswx_kernel, |
| 1215 |
}; |
| 1216 |
static GenOpFunc1 *gen_op_stsw[] = {
|
| 1217 |
&gen_op_stsw_user, |
| 1218 |
&gen_op_stsw_kernel, |
| 1219 |
}; |
| 1220 |
#endif
|
| 1221 |
|
| 1222 |
/* lswi */
|
| 1223 |
/* PPC32 specification says we must generate an exception if
|
| 1224 |
* rA is in the range of registers to be loaded.
|
| 1225 |
* In an other hand, IBM says this is valid, but rA won't be loaded.
|
| 1226 |
* For now, I'll follow the spec...
|
| 1227 |
*/
|
| 1228 |
GEN_HANDLER(lswi, 0x1F, 0x15, 0x12, 0x00000001, PPC_INTEGER) |
| 1229 |
{
|
| 1230 |
int nb = NB(ctx->opcode);
|
| 1231 |
int start = rD(ctx->opcode);
|
| 1232 |
int ra = rA(ctx->opcode);
|
| 1233 |
int nr;
|
| 1234 |
|
| 1235 |
if (nb == 0) |
| 1236 |
nb = 32;
|
| 1237 |
nr = nb / 4;
|
| 1238 |
if (((start + nr) > 32 && start <= ra && (start + nr - 32) > ra) || |
| 1239 |
((start + nr) <= 32 && start <= ra && (start + nr) > ra)) {
|
| 1240 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_LSWX); |
| 1241 |
return;
|
| 1242 |
} |
| 1243 |
if (ra == 0) { |
| 1244 |
gen_op_set_T0(0);
|
| 1245 |
} else {
|
| 1246 |
gen_op_load_gpr_T0(ra); |
| 1247 |
} |
| 1248 |
gen_op_set_T1(nb); |
| 1249 |
op_ldsts(lswi, start); |
| 1250 |
} |
| 1251 |
|
| 1252 |
/* lswx */
|
| 1253 |
GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_INTEGER) |
| 1254 |
{
|
| 1255 |
int ra = rA(ctx->opcode);
|
| 1256 |
int rb = rB(ctx->opcode);
|
| 1257 |
|
| 1258 |
if (ra == 0) { |
| 1259 |
gen_op_load_gpr_T0(rb); |
| 1260 |
ra = rb; |
| 1261 |
} else {
|
| 1262 |
gen_op_load_gpr_T0(ra); |
| 1263 |
gen_op_load_gpr_T1(rb); |
| 1264 |
gen_op_add(); |
| 1265 |
} |
| 1266 |
gen_op_load_xer_bc(); |
| 1267 |
op_ldstsx(lswx, rD(ctx->opcode), ra, rb); |
| 1268 |
} |
| 1269 |
|
| 1270 |
/* stswi */
|
| 1271 |
GEN_HANDLER(stswi, 0x1F, 0x15, 0x16, 0x00000001, PPC_INTEGER) |
| 1272 |
{
|
| 1273 |
int nb = NB(ctx->opcode);
|
| 1274 |
|
| 1275 |
if (rA(ctx->opcode) == 0) { |
| 1276 |
gen_op_set_T0(0);
|
| 1277 |
} else {
|
| 1278 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1279 |
} |
| 1280 |
if (nb == 0) |
| 1281 |
nb = 32;
|
| 1282 |
gen_op_set_T1(nb); |
| 1283 |
op_ldsts(stsw, rS(ctx->opcode)); |
| 1284 |
} |
| 1285 |
|
| 1286 |
/* stswx */
|
| 1287 |
GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_INTEGER) |
| 1288 |
{
|
| 1289 |
int ra = rA(ctx->opcode);
|
| 1290 |
|
| 1291 |
if (ra == 0) { |
| 1292 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1293 |
ra = rB(ctx->opcode); |
| 1294 |
} else {
|
| 1295 |
gen_op_load_gpr_T0(ra); |
| 1296 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1297 |
gen_op_add(); |
| 1298 |
} |
| 1299 |
gen_op_load_xer_bc(); |
| 1300 |
op_ldsts(stsw, rS(ctx->opcode)); |
| 1301 |
} |
| 1302 |
|
| 1303 |
/*** Memory synchronisation ***/
|
| 1304 |
/* eieio */
|
| 1305 |
GEN_HANDLER(eieio, 0x1F, 0x16, 0x1A, 0x03FF0801, PPC_MEM) |
| 1306 |
{
|
| 1307 |
} |
| 1308 |
|
| 1309 |
/* isync */
|
| 1310 |
GEN_HANDLER(isync, 0x13, 0x16, 0xFF, 0x03FF0801, PPC_MEM) |
| 1311 |
{
|
| 1312 |
} |
| 1313 |
|
| 1314 |
/* lwarx */
|
| 1315 |
#if defined(CONFIG_USER_ONLY)
|
| 1316 |
#define op_lwarx() gen_op_lwarx_raw()
|
| 1317 |
#define op_stwcx() gen_op_stwcx_raw()
|
| 1318 |
#else
|
| 1319 |
#define op_lwarx() (*gen_op_lwarx[ctx->mem_idx])()
|
| 1320 |
static GenOpFunc *gen_op_lwarx[] = {
|
| 1321 |
&gen_op_lwarx_user, |
| 1322 |
&gen_op_lwarx_kernel, |
| 1323 |
}; |
| 1324 |
#define op_stwcx() (*gen_op_stwcx[ctx->mem_idx])()
|
| 1325 |
static GenOpFunc *gen_op_stwcx[] = {
|
| 1326 |
&gen_op_stwcx_user, |
| 1327 |
&gen_op_stwcx_kernel, |
| 1328 |
}; |
| 1329 |
#endif
|
| 1330 |
|
| 1331 |
GEN_HANDLER(lwarx, 0x1F, 0x14, 0xFF, 0x00000001, PPC_RES) |
| 1332 |
{
|
| 1333 |
if (rA(ctx->opcode) == 0) { |
| 1334 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1335 |
} else {
|
| 1336 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1337 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1338 |
gen_op_add(); |
| 1339 |
} |
| 1340 |
op_lwarx(); |
| 1341 |
gen_op_store_T1_gpr(rD(ctx->opcode)); |
| 1342 |
} |
| 1343 |
|
| 1344 |
/* stwcx. */
|
| 1345 |
GEN_HANDLER(stwcx_, 0x1F, 0x16, 0x04, 0x00000000, PPC_RES) |
| 1346 |
{
|
| 1347 |
if (rA(ctx->opcode) == 0) { |
| 1348 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1349 |
} else {
|
| 1350 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1351 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1352 |
gen_op_add(); |
| 1353 |
} |
| 1354 |
gen_op_load_gpr_T1(rS(ctx->opcode)); |
| 1355 |
op_stwcx(); |
| 1356 |
} |
| 1357 |
|
| 1358 |
/* sync */
|
| 1359 |
GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x03FF0801, PPC_MEM) |
| 1360 |
{
|
| 1361 |
} |
| 1362 |
|
| 1363 |
/*** Floating-point load ***/
|
| 1364 |
#define GEN_LDF(width, opc) \
|
| 1365 |
GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1366 |
{ \
|
| 1367 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1368 |
if (rA(ctx->opcode) == 0) { \ |
| 1369 |
gen_op_set_T0(simm); \ |
| 1370 |
} else { \
|
| 1371 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1372 |
if (simm != 0) \ |
| 1373 |
gen_op_addi(simm); \ |
| 1374 |
} \ |
| 1375 |
op_ldst(l##width); \ |
| 1376 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1377 |
} |
| 1378 |
|
| 1379 |
#define GEN_LDUF(width, opc) \
|
| 1380 |
GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1381 |
{ \
|
| 1382 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1383 |
if (rA(ctx->opcode) == 0 || \ |
| 1384 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1385 |
RET_INVAL(ctx); \ |
| 1386 |
return; \
|
| 1387 |
} \ |
| 1388 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1389 |
if (simm != 0) \ |
| 1390 |
gen_op_addi(simm); \ |
| 1391 |
op_ldst(l##width); \ |
| 1392 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1393 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1394 |
} |
| 1395 |
|
| 1396 |
#define GEN_LDUXF(width, opc) \
|
| 1397 |
GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1398 |
{ \
|
| 1399 |
if (rA(ctx->opcode) == 0 || \ |
| 1400 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1401 |
RET_INVAL(ctx); \ |
| 1402 |
return; \
|
| 1403 |
} \ |
| 1404 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1405 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1406 |
gen_op_add(); \ |
| 1407 |
op_ldst(l##width); \ |
| 1408 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1409 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1410 |
} |
| 1411 |
|
| 1412 |
#define GEN_LDXF(width, opc2, opc3) \
|
| 1413 |
GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1414 |
{ \
|
| 1415 |
if (rA(ctx->opcode) == 0) { \ |
| 1416 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1417 |
} else { \
|
| 1418 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1419 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1420 |
gen_op_add(); \ |
| 1421 |
} \ |
| 1422 |
op_ldst(l##width); \ |
| 1423 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1424 |
} |
| 1425 |
|
| 1426 |
#define GEN_LDFS(width, op) \
|
| 1427 |
OP_LD_TABLE(width); \ |
| 1428 |
GEN_LDF(width, op | 0x20); \
|
| 1429 |
GEN_LDUF(width, op | 0x21); \
|
| 1430 |
GEN_LDUXF(width, op | 0x01); \
|
| 1431 |
GEN_LDXF(width, 0x17, op | 0x00) |
| 1432 |
|
| 1433 |
/* lfd lfdu lfdux lfdx */
|
| 1434 |
GEN_LDFS(fd, 0x12);
|
| 1435 |
/* lfs lfsu lfsux lfsx */
|
| 1436 |
GEN_LDFS(fs, 0x10);
|
| 1437 |
|
| 1438 |
/*** Floating-point store ***/
|
| 1439 |
#define GEN_STF(width, opc) \
|
| 1440 |
GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1441 |
{ \
|
| 1442 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1443 |
if (rA(ctx->opcode) == 0) { \ |
| 1444 |
gen_op_set_T0(simm); \ |
| 1445 |
} else { \
|
| 1446 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1447 |
if (simm != 0) \ |
| 1448 |
gen_op_addi(simm); \ |
| 1449 |
} \ |
| 1450 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1451 |
op_ldst(st##width); \ |
| 1452 |
} |
| 1453 |
|
| 1454 |
#define GEN_STUF(width, opc) \
|
| 1455 |
GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1456 |
{ \
|
| 1457 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1458 |
if (rA(ctx->opcode) == 0) { \ |
| 1459 |
RET_INVAL(ctx); \ |
| 1460 |
return; \
|
| 1461 |
} \ |
| 1462 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1463 |
if (simm != 0) \ |
| 1464 |
gen_op_addi(simm); \ |
| 1465 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1466 |
op_ldst(st##width); \ |
| 1467 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1468 |
} |
| 1469 |
|
| 1470 |
#define GEN_STUXF(width, opc) \
|
| 1471 |
GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1472 |
{ \
|
| 1473 |
if (rA(ctx->opcode) == 0) { \ |
| 1474 |
RET_INVAL(ctx); \ |
| 1475 |
return; \
|
| 1476 |
} \ |
| 1477 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1478 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1479 |
gen_op_add(); \ |
| 1480 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1481 |
op_ldst(st##width); \ |
| 1482 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1483 |
} |
| 1484 |
|
| 1485 |
#define GEN_STXF(width, opc2, opc3) \
|
| 1486 |
GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1487 |
{ \
|
| 1488 |
if (rA(ctx->opcode) == 0) { \ |
| 1489 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1490 |
} else { \
|
| 1491 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1492 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1493 |
gen_op_add(); \ |
| 1494 |
} \ |
| 1495 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1496 |
op_ldst(st##width); \ |
| 1497 |
} |
| 1498 |
|
| 1499 |
#define GEN_STFS(width, op) \
|
| 1500 |
OP_ST_TABLE(width); \ |
| 1501 |
GEN_STF(width, op | 0x20); \
|
| 1502 |
GEN_STUF(width, op | 0x21); \
|
| 1503 |
GEN_STUXF(width, op | 0x01); \
|
| 1504 |
GEN_STXF(width, 0x17, op | 0x00) |
| 1505 |
|
| 1506 |
/* stfd stfdu stfdux stfdx */
|
| 1507 |
GEN_STFS(fd, 0x16);
|
| 1508 |
/* stfs stfsu stfsux stfsx */
|
| 1509 |
GEN_STFS(fs, 0x14);
|
| 1510 |
|
| 1511 |
/* Optional: */
|
| 1512 |
/* stfiwx */
|
| 1513 |
GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT) |
| 1514 |
{
|
| 1515 |
RET_INVAL(ctx); |
| 1516 |
} |
| 1517 |
|
| 1518 |
/*** Branch ***/
|
| 1519 |
|
| 1520 |
/* b ba bl bla */
|
| 1521 |
GEN_HANDLER(b, 0x12, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1522 |
{
|
| 1523 |
uint32_t li, target; |
| 1524 |
|
| 1525 |
/* sign extend LI */
|
| 1526 |
li = ((int32_t)LI(ctx->opcode) << 6) >> 6; |
| 1527 |
|
| 1528 |
if (AA(ctx->opcode) == 0) |
| 1529 |
target = ctx->nip + li - 4;
|
| 1530 |
else
|
| 1531 |
target = li; |
| 1532 |
if (LK(ctx->opcode)) {
|
| 1533 |
gen_op_setlr(ctx->nip); |
| 1534 |
} |
| 1535 |
gen_op_b((long)ctx->tb, target);
|
| 1536 |
ctx->exception = EXCP_BRANCH; |
| 1537 |
} |
| 1538 |
|
| 1539 |
#define BCOND_IM 0 |
| 1540 |
#define BCOND_LR 1 |
| 1541 |
#define BCOND_CTR 2 |
| 1542 |
|
| 1543 |
static inline void gen_bcond(DisasContext *ctx, int type) |
| 1544 |
{
|
| 1545 |
uint32_t target = 0;
|
| 1546 |
uint32_t bo = BO(ctx->opcode); |
| 1547 |
uint32_t bi = BI(ctx->opcode); |
| 1548 |
uint32_t mask; |
| 1549 |
uint32_t li; |
| 1550 |
|
| 1551 |
if ((bo & 0x4) == 0) |
| 1552 |
gen_op_dec_ctr(); |
| 1553 |
switch(type) {
|
| 1554 |
case BCOND_IM:
|
| 1555 |
li = s_ext16(BD(ctx->opcode)); |
| 1556 |
if (AA(ctx->opcode) == 0) { |
| 1557 |
target = ctx->nip + li - 4;
|
| 1558 |
} else {
|
| 1559 |
target = li; |
| 1560 |
} |
| 1561 |
break;
|
| 1562 |
case BCOND_CTR:
|
| 1563 |
gen_op_movl_T1_ctr(); |
| 1564 |
break;
|
| 1565 |
default:
|
| 1566 |
case BCOND_LR:
|
| 1567 |
gen_op_movl_T1_lr(); |
| 1568 |
break;
|
| 1569 |
} |
| 1570 |
if (LK(ctx->opcode)) {
|
| 1571 |
gen_op_setlr(ctx->nip); |
| 1572 |
} |
| 1573 |
if (bo & 0x10) { |
| 1574 |
/* No CR condition */
|
| 1575 |
switch (bo & 0x6) { |
| 1576 |
case 0: |
| 1577 |
gen_op_test_ctr(); |
| 1578 |
break;
|
| 1579 |
case 2: |
| 1580 |
gen_op_test_ctrz(); |
| 1581 |
break;
|
| 1582 |
default:
|
| 1583 |
case 4: |
| 1584 |
case 6: |
| 1585 |
if (type == BCOND_IM) {
|
| 1586 |
gen_op_b((long)ctx->tb, target);
|
| 1587 |
} else {
|
| 1588 |
gen_op_b_T1(); |
| 1589 |
} |
| 1590 |
goto no_test;
|
| 1591 |
} |
| 1592 |
} else {
|
| 1593 |
mask = 1 << (3 - (bi & 0x03)); |
| 1594 |
gen_op_load_crf_T0(bi >> 2);
|
| 1595 |
if (bo & 0x8) { |
| 1596 |
switch (bo & 0x6) { |
| 1597 |
case 0: |
| 1598 |
gen_op_test_ctr_true(mask); |
| 1599 |
break;
|
| 1600 |
case 2: |
| 1601 |
gen_op_test_ctrz_true(mask); |
| 1602 |
break;
|
| 1603 |
default:
|
| 1604 |
case 4: |
| 1605 |
case 6: |
| 1606 |
gen_op_test_true(mask); |
| 1607 |
break;
|
| 1608 |
} |
| 1609 |
} else {
|
| 1610 |
switch (bo & 0x6) { |
| 1611 |
case 0: |
| 1612 |
gen_op_test_ctr_false(mask); |
| 1613 |
break;
|
| 1614 |
case 2: |
| 1615 |
gen_op_test_ctrz_false(mask); |
| 1616 |
break;
|
| 1617 |
default:
|
| 1618 |
case 4: |
| 1619 |
case 6: |
| 1620 |
gen_op_test_false(mask); |
| 1621 |
break;
|
| 1622 |
} |
| 1623 |
} |
| 1624 |
} |
| 1625 |
if (type == BCOND_IM) {
|
| 1626 |
gen_op_btest((long)ctx->tb, target, ctx->nip);
|
| 1627 |
} else {
|
| 1628 |
gen_op_btest_T1(ctx->nip); |
| 1629 |
} |
| 1630 |
no_test:
|
| 1631 |
ctx->exception = EXCP_BRANCH; |
| 1632 |
} |
| 1633 |
|
| 1634 |
GEN_HANDLER(bc, 0x10, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1635 |
{
|
| 1636 |
gen_bcond(ctx, BCOND_IM); |
| 1637 |
} |
| 1638 |
|
| 1639 |
GEN_HANDLER(bcctr, 0x13, 0x10, 0x10, 0x00000000, PPC_FLOW) |
| 1640 |
{
|
| 1641 |
gen_bcond(ctx, BCOND_CTR); |
| 1642 |
} |
| 1643 |
|
| 1644 |
GEN_HANDLER(bclr, 0x13, 0x10, 0x00, 0x00000000, PPC_FLOW) |
| 1645 |
{
|
| 1646 |
gen_bcond(ctx, BCOND_LR); |
| 1647 |
} |
| 1648 |
|
| 1649 |
/*** Condition register logical ***/
|
| 1650 |
#define GEN_CRLOGIC(op, opc) \
|
| 1651 |
GEN_HANDLER(cr##op, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER) \ |
| 1652 |
{ \
|
| 1653 |
gen_op_load_crf_T0(crbA(ctx->opcode) >> 2); \
|
| 1654 |
gen_op_getbit_T0(3 - (crbA(ctx->opcode) & 0x03)); \ |
| 1655 |
gen_op_load_crf_T1(crbB(ctx->opcode) >> 2); \
|
| 1656 |
gen_op_getbit_T1(3 - (crbB(ctx->opcode) & 0x03)); \ |
| 1657 |
gen_op_##op(); \ |
| 1658 |
gen_op_load_crf_T1(crbD(ctx->opcode) >> 2); \
|
| 1659 |
gen_op_setcrfbit(~(1 << (3 - (crbD(ctx->opcode) & 0x03))), \ |
| 1660 |
3 - (crbD(ctx->opcode) & 0x03)); \ |
| 1661 |
gen_op_store_T1_crf(crbD(ctx->opcode) >> 2); \
|
| 1662 |
} |
| 1663 |
|
| 1664 |
/* crand */
|
| 1665 |
GEN_CRLOGIC(and, 0x08)
|
| 1666 |
/* crandc */
|
| 1667 |
GEN_CRLOGIC(andc, 0x04)
|
| 1668 |
/* creqv */
|
| 1669 |
GEN_CRLOGIC(eqv, 0x09)
|
| 1670 |
/* crnand */
|
| 1671 |
GEN_CRLOGIC(nand, 0x07)
|
| 1672 |
/* crnor */
|
| 1673 |
GEN_CRLOGIC(nor, 0x01)
|
| 1674 |
/* cror */
|
| 1675 |
GEN_CRLOGIC(or, 0x0E)
|
| 1676 |
/* crorc */
|
| 1677 |
GEN_CRLOGIC(orc, 0x0D)
|
| 1678 |
/* crxor */
|
| 1679 |
GEN_CRLOGIC(xor, 0x06)
|
| 1680 |
/* mcrf */
|
| 1681 |
GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER) |
| 1682 |
{
|
| 1683 |
gen_op_load_crf_T0(crfS(ctx->opcode)); |
| 1684 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 1685 |
} |
| 1686 |
|
| 1687 |
/*** System linkage ***/
|
| 1688 |
/* rfi (supervisor only) */
|
| 1689 |
GEN_HANDLER(rfi, 0x13, 0x12, 0xFF, 0x03FF8001, PPC_FLOW) |
| 1690 |
{
|
| 1691 |
#if defined(CONFIG_USER_ONLY)
|
| 1692 |
RET_PRIVOPC(ctx); |
| 1693 |
#else
|
| 1694 |
/* Restore CPU state */
|
| 1695 |
if (!ctx->supervisor) {
|
| 1696 |
RET_PRIVOPC(ctx); |
| 1697 |
return;
|
| 1698 |
} |
| 1699 |
gen_op_rfi(); |
| 1700 |
RET_EXCP(ctx, EXCP_RFI, 0);
|
| 1701 |
#endif
|
| 1702 |
} |
| 1703 |
|
| 1704 |
/* sc */
|
| 1705 |
GEN_HANDLER(sc, 0x11, 0xFF, 0xFF, 0x03FFFFFD, PPC_FLOW) |
| 1706 |
{
|
| 1707 |
#if defined(CONFIG_USER_ONLY)
|
| 1708 |
RET_EXCP(ctx, EXCP_SYSCALL_USER, 0);
|
| 1709 |
#else
|
| 1710 |
RET_EXCP(ctx, EXCP_SYSCALL, 0);
|
| 1711 |
#endif
|
| 1712 |
} |
| 1713 |
|
| 1714 |
/*** Trap ***/
|
| 1715 |
/* tw */
|
| 1716 |
GEN_HANDLER(tw, 0x1F, 0x04, 0xFF, 0x00000001, PPC_FLOW) |
| 1717 |
{
|
| 1718 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1719 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1720 |
gen_op_tw(TO(ctx->opcode)); |
| 1721 |
} |
| 1722 |
|
| 1723 |
/* twi */
|
| 1724 |
GEN_HANDLER(twi, 0x03, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1725 |
{
|
| 1726 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1727 |
#if 0
|
| 1728 |
printf("%s: param=0x%04x T0=0x%04x\n", __func__,
|
| 1729 |
SIMM(ctx->opcode), TO(ctx->opcode));
|
| 1730 |
#endif
|
| 1731 |
gen_op_twi(SIMM(ctx->opcode), TO(ctx->opcode)); |
| 1732 |
} |
| 1733 |
|
| 1734 |
/*** Processor control ***/
|
| 1735 |
static inline int check_spr_access (int spr, int rw, int supervisor) |
| 1736 |
{
|
| 1737 |
uint32_t rights = spr_access[spr >> 1] >> (4 * (spr & 1)); |
| 1738 |
|
| 1739 |
#if 0
|
| 1740 |
if (spr != LR && spr != CTR) {
|
| 1741 |
if (loglevel > 0) {
|
| 1742 |
fprintf(logfile, "%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__,
|
| 1743 |
SPR_ENCODE(spr), supervisor, rw, rights,
|
| 1744 |
(rights >> ((2 * supervisor) + rw)) & 1);
|
| 1745 |
} else {
|
| 1746 |
printf("%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__,
|
| 1747 |
SPR_ENCODE(spr), supervisor, rw, rights,
|
| 1748 |
(rights >> ((2 * supervisor) + rw)) & 1);
|
| 1749 |
}
|
| 1750 |
}
|
| 1751 |
#endif
|
| 1752 |
if (rights == 0) |
| 1753 |
return -1; |
| 1754 |
rights = rights >> (2 * supervisor);
|
| 1755 |
rights = rights >> rw; |
| 1756 |
|
| 1757 |
return rights & 1; |
| 1758 |
} |
| 1759 |
|
| 1760 |
/* mcrxr */
|
| 1761 |
GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC) |
| 1762 |
{
|
| 1763 |
gen_op_load_xer_cr(); |
| 1764 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 1765 |
gen_op_clear_xer_cr(); |
| 1766 |
} |
| 1767 |
|
| 1768 |
/* mfcr */
|
| 1769 |
GEN_HANDLER(mfcr, 0x1F, 0x13, 0x00, 0x001FF801, PPC_MISC) |
| 1770 |
{
|
| 1771 |
gen_op_load_cr(); |
| 1772 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 1773 |
} |
| 1774 |
|
| 1775 |
/* mfmsr */
|
| 1776 |
GEN_HANDLER(mfmsr, 0x1F, 0x13, 0x02, 0x001FF801, PPC_MISC) |
| 1777 |
{
|
| 1778 |
#if defined(CONFIG_USER_ONLY)
|
| 1779 |
RET_PRIVREG(ctx); |
| 1780 |
#else
|
| 1781 |
if (!ctx->supervisor) {
|
| 1782 |
RET_PRIVREG(ctx); |
| 1783 |
return;
|
| 1784 |
} |
| 1785 |
gen_op_load_msr(); |
| 1786 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 1787 |
#endif
|
| 1788 |
} |
| 1789 |
|
| 1790 |
/* mfspr */
|
| 1791 |
GEN_HANDLER(mfspr, 0x1F, 0x13, 0x0A, 0x00000001, PPC_MISC) |
| 1792 |
{
|
| 1793 |
uint32_t sprn = SPR(ctx->opcode); |
| 1794 |
|
| 1795 |
#if defined(CONFIG_USER_ONLY)
|
| 1796 |
switch (check_spr_access(sprn, 0, 0)) |
| 1797 |
#else
|
| 1798 |
switch (check_spr_access(sprn, 0, ctx->supervisor)) |
| 1799 |
#endif
|
| 1800 |
{
|
| 1801 |
case -1: |
| 1802 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); |
| 1803 |
return;
|
| 1804 |
case 0: |
| 1805 |
RET_PRIVREG(ctx); |
| 1806 |
return;
|
| 1807 |
default:
|
| 1808 |
break;
|
| 1809 |
} |
| 1810 |
switch (sprn) {
|
| 1811 |
case XER:
|
| 1812 |
gen_op_load_xer(); |
| 1813 |
break;
|
| 1814 |
case LR:
|
| 1815 |
gen_op_load_lr(); |
| 1816 |
break;
|
| 1817 |
case CTR:
|
| 1818 |
gen_op_load_ctr(); |
| 1819 |
break;
|
| 1820 |
case IBAT0U:
|
| 1821 |
gen_op_load_ibat(0, 0); |
| 1822 |
break;
|
| 1823 |
case IBAT1U:
|
| 1824 |
gen_op_load_ibat(0, 1); |
| 1825 |
break;
|
| 1826 |
case IBAT2U:
|
| 1827 |
gen_op_load_ibat(0, 2); |
| 1828 |
break;
|
| 1829 |
case IBAT3U:
|
| 1830 |
gen_op_load_ibat(0, 3); |
| 1831 |
break;
|
| 1832 |
case IBAT4U:
|
| 1833 |
gen_op_load_ibat(0, 4); |
| 1834 |
break;
|
| 1835 |
case IBAT5U:
|
| 1836 |
gen_op_load_ibat(0, 5); |
| 1837 |
break;
|
| 1838 |
case IBAT6U:
|
| 1839 |
gen_op_load_ibat(0, 6); |
| 1840 |
break;
|
| 1841 |
case IBAT7U:
|
| 1842 |
gen_op_load_ibat(0, 7); |
| 1843 |
break;
|
| 1844 |
case IBAT0L:
|
| 1845 |
gen_op_load_ibat(1, 0); |
| 1846 |
break;
|
| 1847 |
case IBAT1L:
|
| 1848 |
gen_op_load_ibat(1, 1); |
| 1849 |
break;
|
| 1850 |
case IBAT2L:
|
| 1851 |
gen_op_load_ibat(1, 2); |
| 1852 |
break;
|
| 1853 |
case IBAT3L:
|
| 1854 |
gen_op_load_ibat(1, 3); |
| 1855 |
break;
|
| 1856 |
case IBAT4L:
|
| 1857 |
gen_op_load_ibat(1, 4); |
| 1858 |
break;
|
| 1859 |
case IBAT5L:
|
| 1860 |
gen_op_load_ibat(1, 5); |
| 1861 |
break;
|
| 1862 |
case IBAT6L:
|
| 1863 |
gen_op_load_ibat(1, 6); |
| 1864 |
break;
|
| 1865 |
case IBAT7L:
|
| 1866 |
gen_op_load_ibat(1, 7); |
| 1867 |
break;
|
| 1868 |
case DBAT0U:
|
| 1869 |
gen_op_load_dbat(0, 0); |
| 1870 |
break;
|
| 1871 |
case DBAT1U:
|
| 1872 |
gen_op_load_dbat(0, 1); |
| 1873 |
break;
|
| 1874 |
case DBAT2U:
|
| 1875 |
gen_op_load_dbat(0, 2); |
| 1876 |
break;
|
| 1877 |
case DBAT3U:
|
| 1878 |
gen_op_load_dbat(0, 3); |
| 1879 |
break;
|
| 1880 |
case DBAT4U:
|
| 1881 |
gen_op_load_dbat(0, 4); |
| 1882 |
break;
|
| 1883 |
case DBAT5U:
|
| 1884 |
gen_op_load_dbat(0, 5); |
| 1885 |
break;
|
| 1886 |
case DBAT6U:
|
| 1887 |
gen_op_load_dbat(0, 6); |
| 1888 |
break;
|
| 1889 |
case DBAT7U:
|
| 1890 |
gen_op_load_dbat(0, 7); |
| 1891 |
break;
|
| 1892 |
case DBAT0L:
|
| 1893 |
gen_op_load_dbat(1, 0); |
| 1894 |
break;
|
| 1895 |
case DBAT1L:
|
| 1896 |
gen_op_load_dbat(1, 1); |
| 1897 |
break;
|
| 1898 |
case DBAT2L:
|
| 1899 |
gen_op_load_dbat(1, 2); |
| 1900 |
break;
|
| 1901 |
case DBAT3L:
|
| 1902 |
gen_op_load_dbat(1, 3); |
| 1903 |
break;
|
| 1904 |
case DBAT4L:
|
| 1905 |
gen_op_load_dbat(1, 4); |
| 1906 |
break;
|
| 1907 |
case DBAT5L:
|
| 1908 |
gen_op_load_dbat(1, 5); |
| 1909 |
break;
|
| 1910 |
case DBAT6L:
|
| 1911 |
gen_op_load_dbat(1, 6); |
| 1912 |
break;
|
| 1913 |
case DBAT7L:
|
| 1914 |
gen_op_load_dbat(1, 7); |
| 1915 |
break;
|
| 1916 |
case SDR1:
|
| 1917 |
gen_op_load_sdr1(); |
| 1918 |
break;
|
| 1919 |
case V_TBL:
|
| 1920 |
gen_op_load_tbl(); |
| 1921 |
break;
|
| 1922 |
case V_TBU:
|
| 1923 |
gen_op_load_tbu(); |
| 1924 |
break;
|
| 1925 |
case DECR:
|
| 1926 |
gen_op_load_decr(); |
| 1927 |
break;
|
| 1928 |
default:
|
| 1929 |
gen_op_load_spr(sprn); |
| 1930 |
break;
|
| 1931 |
} |
| 1932 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 1933 |
} |
| 1934 |
|
| 1935 |
/* mftb */
|
| 1936 |
GEN_HANDLER(mftb, 0x1F, 0x13, 0x0B, 0x00000001, PPC_MISC) |
| 1937 |
{
|
| 1938 |
uint32_t sprn = SPR(ctx->opcode); |
| 1939 |
|
| 1940 |
/* We need to update the time base before reading it */
|
| 1941 |
switch (sprn) {
|
| 1942 |
case V_TBL:
|
| 1943 |
gen_op_load_tbl(); |
| 1944 |
break;
|
| 1945 |
case V_TBU:
|
| 1946 |
gen_op_load_tbu(); |
| 1947 |
break;
|
| 1948 |
default:
|
| 1949 |
RET_INVAL(ctx); |
| 1950 |
return;
|
| 1951 |
} |
| 1952 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 1953 |
} |
| 1954 |
|
| 1955 |
/* mtcrf */
|
| 1956 |
GEN_HANDLER(mtcrf, 0x1F, 0x10, 0x04, 0x00100801, PPC_MISC) |
| 1957 |
{
|
| 1958 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 1959 |
gen_op_store_cr(CRM(ctx->opcode)); |
| 1960 |
} |
| 1961 |
|
| 1962 |
/* mtmsr */
|
| 1963 |
GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001FF801, PPC_MISC) |
| 1964 |
{
|
| 1965 |
#if defined(CONFIG_USER_ONLY)
|
| 1966 |
RET_PRIVREG(ctx); |
| 1967 |
#else
|
| 1968 |
if (!ctx->supervisor) {
|
| 1969 |
RET_PRIVREG(ctx); |
| 1970 |
return;
|
| 1971 |
} |
| 1972 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 1973 |
gen_op_store_msr(); |
| 1974 |
/* Must stop the translation as machine state (may have) changed */
|
| 1975 |
RET_MTMSR(ctx); |
| 1976 |
#endif
|
| 1977 |
} |
| 1978 |
|
| 1979 |
/* mtspr */
|
| 1980 |
GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC) |
| 1981 |
{
|
| 1982 |
uint32_t sprn = SPR(ctx->opcode); |
| 1983 |
|
| 1984 |
#if 0
|
| 1985 |
if (loglevel > 0) {
|
| 1986 |
fprintf(logfile, "MTSPR %d src=%d (%d)\n", SPR_ENCODE(sprn),
|
| 1987 |
rS(ctx->opcode), sprn);
|
| 1988 |
}
|
| 1989 |
#endif
|
| 1990 |
#if defined(CONFIG_USER_ONLY)
|
| 1991 |
switch (check_spr_access(sprn, 1, 0)) |
| 1992 |
#else
|
| 1993 |
switch (check_spr_access(sprn, 1, ctx->supervisor)) |
| 1994 |
#endif
|
| 1995 |
{
|
| 1996 |
case -1: |
| 1997 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); |
| 1998 |
break;
|
| 1999 |
case 0: |
| 2000 |
RET_PRIVREG(ctx); |
| 2001 |
break;
|
| 2002 |
default:
|
| 2003 |
break;
|
| 2004 |
} |
| 2005 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2006 |
switch (sprn) {
|
| 2007 |
case XER:
|
| 2008 |
gen_op_store_xer(); |
| 2009 |
break;
|
| 2010 |
case LR:
|
| 2011 |
gen_op_store_lr(); |
| 2012 |
break;
|
| 2013 |
case CTR:
|
| 2014 |
gen_op_store_ctr(); |
| 2015 |
break;
|
| 2016 |
case IBAT0U:
|
| 2017 |
gen_op_store_ibat(0, 0); |
| 2018 |
RET_MTMSR(ctx); |
| 2019 |
break;
|
| 2020 |
case IBAT1U:
|
| 2021 |
gen_op_store_ibat(0, 1); |
| 2022 |
RET_MTMSR(ctx); |
| 2023 |
break;
|
| 2024 |
case IBAT2U:
|
| 2025 |
gen_op_store_ibat(0, 2); |
| 2026 |
RET_MTMSR(ctx); |
| 2027 |
break;
|
| 2028 |
case IBAT3U:
|
| 2029 |
gen_op_store_ibat(0, 3); |
| 2030 |
RET_MTMSR(ctx); |
| 2031 |
break;
|
| 2032 |
case IBAT4U:
|
| 2033 |
gen_op_store_ibat(0, 4); |
| 2034 |
RET_MTMSR(ctx); |
| 2035 |
break;
|
| 2036 |
case IBAT5U:
|
| 2037 |
gen_op_store_ibat(0, 5); |
| 2038 |
RET_MTMSR(ctx); |
| 2039 |
break;
|
| 2040 |
case IBAT6U:
|
| 2041 |
gen_op_store_ibat(0, 6); |
| 2042 |
RET_MTMSR(ctx); |
| 2043 |
break;
|
| 2044 |
case IBAT7U:
|
| 2045 |
gen_op_store_ibat(0, 7); |
| 2046 |
RET_MTMSR(ctx); |
| 2047 |
break;
|
| 2048 |
case IBAT0L:
|
| 2049 |
gen_op_store_ibat(1, 0); |
| 2050 |
RET_MTMSR(ctx); |
| 2051 |
break;
|
| 2052 |
case IBAT1L:
|
| 2053 |
gen_op_store_ibat(1, 1); |
| 2054 |
RET_MTMSR(ctx); |
| 2055 |
break;
|
| 2056 |
case IBAT2L:
|
| 2057 |
gen_op_store_ibat(1, 2); |
| 2058 |
RET_MTMSR(ctx); |
| 2059 |
break;
|
| 2060 |
case IBAT3L:
|
| 2061 |
gen_op_store_ibat(1, 3); |
| 2062 |
RET_MTMSR(ctx); |
| 2063 |
break;
|
| 2064 |
case IBAT4L:
|
| 2065 |
gen_op_store_ibat(1, 4); |
| 2066 |
RET_MTMSR(ctx); |
| 2067 |
break;
|
| 2068 |
case IBAT5L:
|
| 2069 |
gen_op_store_ibat(1, 5); |
| 2070 |
RET_MTMSR(ctx); |
| 2071 |
break;
|
| 2072 |
case IBAT6L:
|
| 2073 |
gen_op_store_ibat(1, 6); |
| 2074 |
RET_MTMSR(ctx); |
| 2075 |
break;
|
| 2076 |
case IBAT7L:
|
| 2077 |
gen_op_store_ibat(1, 7); |
| 2078 |
RET_MTMSR(ctx); |
| 2079 |
break;
|
| 2080 |
case DBAT0U:
|
| 2081 |
gen_op_store_dbat(0, 0); |
| 2082 |
RET_MTMSR(ctx); |
| 2083 |
break;
|
| 2084 |
case DBAT1U:
|
| 2085 |
gen_op_store_dbat(0, 1); |
| 2086 |
RET_MTMSR(ctx); |
| 2087 |
break;
|
| 2088 |
case DBAT2U:
|
| 2089 |
gen_op_store_dbat(0, 2); |
| 2090 |
RET_MTMSR(ctx); |
| 2091 |
break;
|
| 2092 |
case DBAT3U:
|
| 2093 |
gen_op_store_dbat(0, 3); |
| 2094 |
RET_MTMSR(ctx); |
| 2095 |
break;
|
| 2096 |
case DBAT4U:
|
| 2097 |
gen_op_store_dbat(0, 4); |
| 2098 |
RET_MTMSR(ctx); |
| 2099 |
break;
|
| 2100 |
case DBAT5U:
|
| 2101 |
gen_op_store_dbat(0, 5); |
| 2102 |
RET_MTMSR(ctx); |
| 2103 |
break;
|
| 2104 |
case DBAT6U:
|
| 2105 |
gen_op_store_dbat(0, 6); |
| 2106 |
RET_MTMSR(ctx); |
| 2107 |
break;
|
| 2108 |
case DBAT7U:
|
| 2109 |
gen_op_store_dbat(0, 7); |
| 2110 |
RET_MTMSR(ctx); |
| 2111 |
break;
|
| 2112 |
case DBAT0L:
|
| 2113 |
gen_op_store_dbat(1, 0); |
| 2114 |
RET_MTMSR(ctx); |
| 2115 |
break;
|
| 2116 |
case DBAT1L:
|
| 2117 |
gen_op_store_dbat(1, 1); |
| 2118 |
RET_MTMSR(ctx); |
| 2119 |
break;
|
| 2120 |
case DBAT2L:
|
| 2121 |
gen_op_store_dbat(1, 2); |
| 2122 |
RET_MTMSR(ctx); |
| 2123 |
break;
|
| 2124 |
case DBAT3L:
|
| 2125 |
gen_op_store_dbat(1, 3); |
| 2126 |
RET_MTMSR(ctx); |
| 2127 |
break;
|
| 2128 |
case DBAT4L:
|
| 2129 |
gen_op_store_dbat(1, 4); |
| 2130 |
RET_MTMSR(ctx); |
| 2131 |
break;
|
| 2132 |
case DBAT5L:
|
| 2133 |
gen_op_store_dbat(1, 5); |
| 2134 |
RET_MTMSR(ctx); |
| 2135 |
break;
|
| 2136 |
case DBAT6L:
|
| 2137 |
gen_op_store_dbat(1, 6); |
| 2138 |
RET_MTMSR(ctx); |
| 2139 |
break;
|
| 2140 |
case DBAT7L:
|
| 2141 |
gen_op_store_dbat(1, 7); |
| 2142 |
RET_MTMSR(ctx); |
| 2143 |
break;
|
| 2144 |
case SDR1:
|
| 2145 |
gen_op_store_sdr1(); |
| 2146 |
RET_MTMSR(ctx); |
| 2147 |
break;
|
| 2148 |
case O_TBL:
|
| 2149 |
gen_op_store_tbl(); |
| 2150 |
break;
|
| 2151 |
case O_TBU:
|
| 2152 |
gen_op_store_tbu(); |
| 2153 |
break;
|
| 2154 |
case DECR:
|
| 2155 |
gen_op_store_decr(); |
| 2156 |
break;
|
| 2157 |
#if 0
|
| 2158 |
case HID0:
|
| 2159 |
gen_op_store_hid0();
|
| 2160 |
break;
|
| 2161 |
#endif
|
| 2162 |
default:
|
| 2163 |
gen_op_store_spr(sprn); |
| 2164 |
break;
|
| 2165 |
} |
| 2166 |
} |
| 2167 |
|
| 2168 |
/*** Cache management ***/
|
| 2169 |
/* For now, all those will be implemented as nop:
|
| 2170 |
* this is valid, regarding the PowerPC specs...
|
| 2171 |
* We just have to flush tb while invalidating instruction cache lines...
|
| 2172 |
*/
|
| 2173 |
/* dcbf */
|
| 2174 |
GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03E00001, PPC_CACHE) |
| 2175 |
{
|
| 2176 |
if (rA(ctx->opcode) == 0) { |
| 2177 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2178 |
} else {
|
| 2179 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2180 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2181 |
gen_op_add(); |
| 2182 |
} |
| 2183 |
op_ldst(lbz); |
| 2184 |
} |
| 2185 |
|
| 2186 |
/* dcbi (Supervisor only) */
|
| 2187 |
GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE) |
| 2188 |
{
|
| 2189 |
#if defined(CONFIG_USER_ONLY)
|
| 2190 |
RET_PRIVOPC(ctx); |
| 2191 |
#else
|
| 2192 |
if (!ctx->supervisor) {
|
| 2193 |
RET_PRIVOPC(ctx); |
| 2194 |
return;
|
| 2195 |
} |
| 2196 |
if (rA(ctx->opcode) == 0) { |
| 2197 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2198 |
} else {
|
| 2199 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2200 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2201 |
gen_op_add(); |
| 2202 |
} |
| 2203 |
op_ldst(lbz); |
| 2204 |
op_ldst(stb); |
| 2205 |
#endif
|
| 2206 |
} |
| 2207 |
|
| 2208 |
/* dcdst */
|
| 2209 |
GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE) |
| 2210 |
{
|
| 2211 |
if (rA(ctx->opcode) == 0) { |
| 2212 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2213 |
} else {
|
| 2214 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2215 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2216 |
gen_op_add(); |
| 2217 |
} |
| 2218 |
op_ldst(lbz); |
| 2219 |
} |
| 2220 |
|
| 2221 |
/* dcbt */
|
| 2222 |
GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x03E00001, PPC_CACHE) |
| 2223 |
{
|
| 2224 |
} |
| 2225 |
|
| 2226 |
/* dcbtst */
|
| 2227 |
GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x03E00001, PPC_CACHE) |
| 2228 |
{
|
| 2229 |
} |
| 2230 |
|
| 2231 |
/* dcbz */
|
| 2232 |
#if defined(CONFIG_USER_ONLY)
|
| 2233 |
#define op_dcbz() gen_op_dcbz_raw()
|
| 2234 |
#else
|
| 2235 |
#define op_dcbz() (*gen_op_dcbz[ctx->mem_idx])()
|
| 2236 |
static GenOpFunc *gen_op_dcbz[] = {
|
| 2237 |
&gen_op_dcbz_user, |
| 2238 |
&gen_op_dcbz_kernel, |
| 2239 |
}; |
| 2240 |
#endif
|
| 2241 |
|
| 2242 |
GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03E00001, PPC_CACHE) |
| 2243 |
{
|
| 2244 |
if (rA(ctx->opcode) == 0) { |
| 2245 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2246 |
} else {
|
| 2247 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2248 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2249 |
gen_op_add(); |
| 2250 |
} |
| 2251 |
op_dcbz(); |
| 2252 |
gen_op_check_reservation(); |
| 2253 |
} |
| 2254 |
|
| 2255 |
/* icbi */
|
| 2256 |
GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_CACHE) |
| 2257 |
{
|
| 2258 |
if (rA(ctx->opcode) == 0) { |
| 2259 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2260 |
} else {
|
| 2261 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2262 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2263 |
gen_op_add(); |
| 2264 |
} |
| 2265 |
gen_op_icbi(); |
| 2266 |
} |
| 2267 |
|
| 2268 |
/* Optional: */
|
| 2269 |
/* dcba */
|
| 2270 |
GEN_HANDLER(dcba, 0x1F, 0x16, 0x07, 0x03E00001, PPC_CACHE_OPT) |
| 2271 |
{
|
| 2272 |
} |
| 2273 |
|
| 2274 |
/*** Segment register manipulation ***/
|
| 2275 |
/* Supervisor only: */
|
| 2276 |
/* mfsr */
|
| 2277 |
GEN_HANDLER(mfsr, 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT) |
| 2278 |
{
|
| 2279 |
#if defined(CONFIG_USER_ONLY)
|
| 2280 |
RET_PRIVREG(ctx); |
| 2281 |
#else
|
| 2282 |
if (!ctx->supervisor) {
|
| 2283 |
RET_PRIVREG(ctx); |
| 2284 |
return;
|
| 2285 |
} |
| 2286 |
gen_op_load_sr(SR(ctx->opcode)); |
| 2287 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2288 |
#endif
|
| 2289 |
} |
| 2290 |
|
| 2291 |
/* mfsrin */
|
| 2292 |
GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x001F0001, PPC_SEGMENT) |
| 2293 |
{
|
| 2294 |
#if defined(CONFIG_USER_ONLY)
|
| 2295 |
RET_PRIVREG(ctx); |
| 2296 |
#else
|
| 2297 |
if (!ctx->supervisor) {
|
| 2298 |
RET_PRIVREG(ctx); |
| 2299 |
return;
|
| 2300 |
} |
| 2301 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2302 |
gen_op_load_srin(); |
| 2303 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2304 |
#endif
|
| 2305 |
} |
| 2306 |
|
| 2307 |
/* mtsr */
|
| 2308 |
GEN_HANDLER(mtsr, 0x1F, 0x12, 0x06, 0x0010F801, PPC_SEGMENT) |
| 2309 |
{
|
| 2310 |
#if defined(CONFIG_USER_ONLY)
|
| 2311 |
RET_PRIVREG(ctx); |
| 2312 |
#else
|
| 2313 |
if (!ctx->supervisor) {
|
| 2314 |
RET_PRIVREG(ctx); |
| 2315 |
return;
|
| 2316 |
} |
| 2317 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2318 |
gen_op_store_sr(SR(ctx->opcode)); |
| 2319 |
#endif
|
| 2320 |
} |
| 2321 |
|
| 2322 |
/* mtsrin */
|
| 2323 |
GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x001F0001, PPC_SEGMENT) |
| 2324 |
{
|
| 2325 |
#if defined(CONFIG_USER_ONLY)
|
| 2326 |
RET_PRIVREG(ctx); |
| 2327 |
#else
|
| 2328 |
if (!ctx->supervisor) {
|
| 2329 |
RET_PRIVREG(ctx); |
| 2330 |
return;
|
| 2331 |
} |
| 2332 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2333 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2334 |
gen_op_store_srin(); |
| 2335 |
#endif
|
| 2336 |
} |
| 2337 |
|
| 2338 |
/*** Lookaside buffer management ***/
|
| 2339 |
/* Optional & supervisor only: */
|
| 2340 |
/* tlbia */
|
| 2341 |
GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM_OPT) |
| 2342 |
{
|
| 2343 |
#if defined(CONFIG_USER_ONLY)
|
| 2344 |
RET_PRIVOPC(ctx); |
| 2345 |
#else
|
| 2346 |
if (!ctx->supervisor) {
|
| 2347 |
if (loglevel)
|
| 2348 |
fprintf(logfile, "%s: ! supervisor\n", __func__);
|
| 2349 |
RET_PRIVOPC(ctx); |
| 2350 |
return;
|
| 2351 |
} |
| 2352 |
gen_op_tlbia(); |
| 2353 |
RET_MTMSR(ctx); |
| 2354 |
#endif
|
| 2355 |
} |
| 2356 |
|
| 2357 |
/* tlbie */
|
| 2358 |
GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x03FF0001, PPC_MEM) |
| 2359 |
{
|
| 2360 |
#if defined(CONFIG_USER_ONLY)
|
| 2361 |
RET_PRIVOPC(ctx); |
| 2362 |
#else
|
| 2363 |
if (!ctx->supervisor) {
|
| 2364 |
RET_PRIVOPC(ctx); |
| 2365 |
return;
|
| 2366 |
} |
| 2367 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2368 |
gen_op_tlbie(); |
| 2369 |
RET_MTMSR(ctx); |
| 2370 |
#endif
|
| 2371 |
} |
| 2372 |
|
| 2373 |
/* tlbsync */
|
| 2374 |
GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFF801, PPC_MEM) |
| 2375 |
{
|
| 2376 |
#if defined(CONFIG_USER_ONLY)
|
| 2377 |
RET_PRIVOPC(ctx); |
| 2378 |
#else
|
| 2379 |
if (!ctx->supervisor) {
|
| 2380 |
RET_PRIVOPC(ctx); |
| 2381 |
return;
|
| 2382 |
} |
| 2383 |
/* This has no effect: it should ensure that all previous
|
| 2384 |
* tlbie have completed
|
| 2385 |
*/
|
| 2386 |
RET_MTMSR(ctx); |
| 2387 |
#endif
|
| 2388 |
} |
| 2389 |
|
| 2390 |
/*** External control ***/
|
| 2391 |
/* Optional: */
|
| 2392 |
/* eciwx */
|
| 2393 |
#if defined(CONFIG_USER_ONLY)
|
| 2394 |
#define op_eciwx() gen_op_eciwx_raw()
|
| 2395 |
#define op_ecowx() gen_op_ecowx_raw()
|
| 2396 |
#else
|
| 2397 |
#define op_eciwx() (*gen_op_eciwx[ctx->mem_idx])()
|
| 2398 |
#define op_ecowx() (*gen_op_ecowx[ctx->mem_idx])()
|
| 2399 |
static GenOpFunc *gen_op_eciwx[] = {
|
| 2400 |
&gen_op_eciwx_user, |
| 2401 |
&gen_op_eciwx_kernel, |
| 2402 |
}; |
| 2403 |
static GenOpFunc *gen_op_ecowx[] = {
|
| 2404 |
&gen_op_ecowx_user, |
| 2405 |
&gen_op_ecowx_kernel, |
| 2406 |
}; |
| 2407 |
#endif
|
| 2408 |
|
| 2409 |
GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN) |
| 2410 |
{
|
| 2411 |
/* Should check EAR[E] & alignment ! */
|
| 2412 |
if (rA(ctx->opcode) == 0) { |
| 2413 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2414 |
} else {
|
| 2415 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2416 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2417 |
gen_op_add(); |
| 2418 |
} |
| 2419 |
op_eciwx(); |
| 2420 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2421 |
} |
| 2422 |
|
| 2423 |
/* ecowx */
|
| 2424 |
GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN) |
| 2425 |
{
|
| 2426 |
/* Should check EAR[E] & alignment ! */
|
| 2427 |
if (rA(ctx->opcode) == 0) { |
| 2428 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2429 |
} else {
|
| 2430 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2431 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2432 |
gen_op_add(); |
| 2433 |
} |
| 2434 |
gen_op_load_gpr_T2(rS(ctx->opcode)); |
| 2435 |
op_ecowx(); |
| 2436 |
} |
| 2437 |
|
| 2438 |
/* End opcode list */
|
| 2439 |
GEN_OPCODE_MARK(end); |
| 2440 |
|
| 2441 |
/*****************************************************************************/
|
| 2442 |
#include <stdlib.h> |
| 2443 |
#include <string.h> |
| 2444 |
|
| 2445 |
int fflush (FILE *stream);
|
| 2446 |
|
| 2447 |
/* Main ppc opcodes table:
|
| 2448 |
* at init, all opcodes are invalids
|
| 2449 |
*/
|
| 2450 |
static opc_handler_t *ppc_opcodes[0x40]; |
| 2451 |
|
| 2452 |
/* Opcode types */
|
| 2453 |
enum {
|
| 2454 |
PPC_DIRECT = 0, /* Opcode routine */ |
| 2455 |
PPC_INDIRECT = 1, /* Indirect opcode table */ |
| 2456 |
}; |
| 2457 |
|
| 2458 |
static inline int is_indirect_opcode (void *handler) |
| 2459 |
{
|
| 2460 |
return ((unsigned long)handler & 0x03) == PPC_INDIRECT; |
| 2461 |
} |
| 2462 |
|
| 2463 |
static inline opc_handler_t **ind_table(void *handler) |
| 2464 |
{
|
| 2465 |
return (opc_handler_t **)((unsigned long)handler & ~3); |
| 2466 |
} |
| 2467 |
|
| 2468 |
/* Instruction table creation */
|
| 2469 |
/* Opcodes tables creation */
|
| 2470 |
static void fill_new_table (opc_handler_t **table, int len) |
| 2471 |
{
|
| 2472 |
int i;
|
| 2473 |
|
| 2474 |
for (i = 0; i < len; i++) |
| 2475 |
table[i] = &invalid_handler; |
| 2476 |
} |
| 2477 |
|
| 2478 |
static int create_new_table (opc_handler_t **table, unsigned char idx) |
| 2479 |
{
|
| 2480 |
opc_handler_t **tmp; |
| 2481 |
|
| 2482 |
tmp = malloc(0x20 * sizeof(opc_handler_t)); |
| 2483 |
if (tmp == NULL) |
| 2484 |
return -1; |
| 2485 |
fill_new_table(tmp, 0x20);
|
| 2486 |
table[idx] = (opc_handler_t *)((unsigned long)tmp | PPC_INDIRECT); |
| 2487 |
|
| 2488 |
return 0; |
| 2489 |
} |
| 2490 |
|
| 2491 |
static int insert_in_table (opc_handler_t **table, unsigned char idx, |
| 2492 |
opc_handler_t *handler) |
| 2493 |
{
|
| 2494 |
if (table[idx] != &invalid_handler)
|
| 2495 |
return -1; |
| 2496 |
table[idx] = handler; |
| 2497 |
|
| 2498 |
return 0; |
| 2499 |
} |
| 2500 |
|
| 2501 |
static int register_direct_insn (opc_handler_t **ppc_opcodes, |
| 2502 |
unsigned char idx, opc_handler_t *handler) |
| 2503 |
{
|
| 2504 |
if (insert_in_table(ppc_opcodes, idx, handler) < 0) { |
| 2505 |
printf("*** ERROR: opcode %02x already assigned in main "
|
| 2506 |
"opcode table\n", idx);
|
| 2507 |
return -1; |
| 2508 |
} |
| 2509 |
|
| 2510 |
return 0; |
| 2511 |
} |
| 2512 |
|
| 2513 |
static int register_ind_in_table (opc_handler_t **table, |
| 2514 |
unsigned char idx1, unsigned char idx2, |
| 2515 |
opc_handler_t *handler) |
| 2516 |
{
|
| 2517 |
if (table[idx1] == &invalid_handler) {
|
| 2518 |
if (create_new_table(table, idx1) < 0) { |
| 2519 |
printf("*** ERROR: unable to create indirect table "
|
| 2520 |
"idx=%02x\n", idx1);
|
| 2521 |
return -1; |
| 2522 |
} |
| 2523 |
} else {
|
| 2524 |
if (!is_indirect_opcode(table[idx1])) {
|
| 2525 |
printf("*** ERROR: idx %02x already assigned to a direct "
|
| 2526 |
"opcode\n", idx1);
|
| 2527 |
return -1; |
| 2528 |
} |
| 2529 |
} |
| 2530 |
if (handler != NULL && |
| 2531 |
insert_in_table(ind_table(table[idx1]), idx2, handler) < 0) {
|
| 2532 |
printf("*** ERROR: opcode %02x already assigned in "
|
| 2533 |
"opcode table %02x\n", idx2, idx1);
|
| 2534 |
return -1; |
| 2535 |
} |
| 2536 |
|
| 2537 |
return 0; |
| 2538 |
} |
| 2539 |
|
| 2540 |
static int register_ind_insn (opc_handler_t **ppc_opcodes, |
| 2541 |
unsigned char idx1, unsigned char idx2, |
| 2542 |
opc_handler_t *handler) |
| 2543 |
{
|
| 2544 |
int ret;
|
| 2545 |
|
| 2546 |
ret = register_ind_in_table(ppc_opcodes, idx1, idx2, handler); |
| 2547 |
|
| 2548 |
return ret;
|
| 2549 |
} |
| 2550 |
|
| 2551 |
static int register_dblind_insn (opc_handler_t **ppc_opcodes, |
| 2552 |
unsigned char idx1, unsigned char idx2, |
| 2553 |
unsigned char idx3, opc_handler_t *handler) |
| 2554 |
{
|
| 2555 |
if (register_ind_in_table(ppc_opcodes, idx1, idx2, NULL) < 0) { |
| 2556 |
printf("*** ERROR: unable to join indirect table idx "
|
| 2557 |
"[%02x-%02x]\n", idx1, idx2);
|
| 2558 |
return -1; |
| 2559 |
} |
| 2560 |
if (register_ind_in_table(ind_table(ppc_opcodes[idx1]), idx2, idx3,
|
| 2561 |
handler) < 0) {
|
| 2562 |
printf("*** ERROR: unable to insert opcode "
|
| 2563 |
"[%02x-%02x-%02x]\n", idx1, idx2, idx3);
|
| 2564 |
return -1; |
| 2565 |
} |
| 2566 |
|
| 2567 |
return 0; |
| 2568 |
} |
| 2569 |
|
| 2570 |
static int register_insn (opc_handler_t **ppc_opcodes, opcode_t *insn) |
| 2571 |
{
|
| 2572 |
if (insn->opc2 != 0xFF) { |
| 2573 |
if (insn->opc3 != 0xFF) { |
| 2574 |
if (register_dblind_insn(ppc_opcodes, insn->opc1, insn->opc2,
|
| 2575 |
insn->opc3, &insn->handler) < 0)
|
| 2576 |
return -1; |
| 2577 |
} else {
|
| 2578 |
if (register_ind_insn(ppc_opcodes, insn->opc1,
|
| 2579 |
insn->opc2, &insn->handler) < 0)
|
| 2580 |
return -1; |
| 2581 |
} |
| 2582 |
} else {
|
| 2583 |
if (register_direct_insn(ppc_opcodes, insn->opc1, &insn->handler) < 0) |
| 2584 |
return -1; |
| 2585 |
} |
| 2586 |
|
| 2587 |
return 0; |
| 2588 |
} |
| 2589 |
|
| 2590 |
static int test_opcode_table (opc_handler_t **table, int len) |
| 2591 |
{
|
| 2592 |
int i, count, tmp;
|
| 2593 |
|
| 2594 |
for (i = 0, count = 0; i < len; i++) { |
| 2595 |
/* Consistency fixup */
|
| 2596 |
if (table[i] == NULL) |
| 2597 |
table[i] = &invalid_handler; |
| 2598 |
if (table[i] != &invalid_handler) {
|
| 2599 |
if (is_indirect_opcode(table[i])) {
|
| 2600 |
tmp = test_opcode_table(ind_table(table[i]), 0x20);
|
| 2601 |
if (tmp == 0) { |
| 2602 |
free(table[i]); |
| 2603 |
table[i] = &invalid_handler; |
| 2604 |
} else {
|
| 2605 |
count++; |
| 2606 |
} |
| 2607 |
} else {
|
| 2608 |
count++; |
| 2609 |
} |
| 2610 |
} |
| 2611 |
} |
| 2612 |
|
| 2613 |
return count;
|
| 2614 |
} |
| 2615 |
|
| 2616 |
static void fix_opcode_tables (opc_handler_t **ppc_opcodes) |
| 2617 |
{
|
| 2618 |
if (test_opcode_table(ppc_opcodes, 0x40) == 0) |
| 2619 |
printf("*** WARNING: no opcode defined !\n");
|
| 2620 |
} |
| 2621 |
|
| 2622 |
#define SPR_RIGHTS(rw, priv) (1 << ((2 * (priv)) + (rw))) |
| 2623 |
#define SPR_UR SPR_RIGHTS(0, 0) |
| 2624 |
#define SPR_UW SPR_RIGHTS(1, 0) |
| 2625 |
#define SPR_SR SPR_RIGHTS(0, 1) |
| 2626 |
#define SPR_SW SPR_RIGHTS(1, 1) |
| 2627 |
|
| 2628 |
#define spr_set_rights(spr, rights) \
|
| 2629 |
do { \
|
| 2630 |
spr_access[(spr) >> 1] |= ((rights) << (4 * ((spr) & 1))); \ |
| 2631 |
} while (0) |
| 2632 |
|
| 2633 |
static void init_spr_rights (uint32_t pvr) |
| 2634 |
{
|
| 2635 |
/* XER (SPR 1) */
|
| 2636 |
spr_set_rights(XER, SPR_UR | SPR_UW | SPR_SR | SPR_SW); |
| 2637 |
/* LR (SPR 8) */
|
| 2638 |
spr_set_rights(LR, SPR_UR | SPR_UW | SPR_SR | SPR_SW); |
| 2639 |
/* CTR (SPR 9) */
|
| 2640 |
spr_set_rights(CTR, SPR_UR | SPR_UW | SPR_SR | SPR_SW); |
| 2641 |
/* TBL (SPR 268) */
|
| 2642 |
spr_set_rights(V_TBL, SPR_UR | SPR_SR); |
| 2643 |
/* TBU (SPR 269) */
|
| 2644 |
spr_set_rights(V_TBU, SPR_UR | SPR_SR); |
| 2645 |
/* DSISR (SPR 18) */
|
| 2646 |
spr_set_rights(DSISR, SPR_SR | SPR_SW); |
| 2647 |
/* DAR (SPR 19) */
|
| 2648 |
spr_set_rights(DAR, SPR_SR | SPR_SW); |
| 2649 |
/* DEC (SPR 22) */
|
| 2650 |
spr_set_rights(DECR, SPR_SR | SPR_SW); |
| 2651 |
/* SDR1 (SPR 25) */
|
| 2652 |
spr_set_rights(SDR1, SPR_SR | SPR_SW); |
| 2653 |
/* SRR0 (SPR 26) */
|
| 2654 |
spr_set_rights(SRR0, SPR_SR | SPR_SW); |
| 2655 |
/* SRR1 (SPR 27) */
|
| 2656 |
spr_set_rights(SRR1, SPR_SR | SPR_SW); |
| 2657 |
/* SPRG0 (SPR 272) */
|
| 2658 |
spr_set_rights(SPRG0, SPR_SR | SPR_SW); |
| 2659 |
/* SPRG1 (SPR 273) */
|
| 2660 |
spr_set_rights(SPRG1, SPR_SR | SPR_SW); |
| 2661 |
/* SPRG2 (SPR 274) */
|
| 2662 |
spr_set_rights(SPRG2, SPR_SR | SPR_SW); |
| 2663 |
/* SPRG3 (SPR 275) */
|
| 2664 |
spr_set_rights(SPRG3, SPR_SR | SPR_SW); |
| 2665 |
/* ASR (SPR 280) */
|
| 2666 |
spr_set_rights(ASR, SPR_SR | SPR_SW); |
| 2667 |
/* EAR (SPR 282) */
|
| 2668 |
spr_set_rights(EAR, SPR_SR | SPR_SW); |
| 2669 |
/* TBL (SPR 284) */
|
| 2670 |
spr_set_rights(O_TBL, SPR_SW); |
| 2671 |
/* TBU (SPR 285) */
|
| 2672 |
spr_set_rights(O_TBU, SPR_SW); |
| 2673 |
/* PVR (SPR 287) */
|
| 2674 |
spr_set_rights(PVR, SPR_SR); |
| 2675 |
/* IBAT0U (SPR 528) */
|
| 2676 |
spr_set_rights(IBAT0U, SPR_SR | SPR_SW); |
| 2677 |
/* IBAT0L (SPR 529) */
|
| 2678 |
spr_set_rights(IBAT0L, SPR_SR | SPR_SW); |
| 2679 |
/* IBAT1U (SPR 530) */
|
| 2680 |
spr_set_rights(IBAT1U, SPR_SR | SPR_SW); |
| 2681 |
/* IBAT1L (SPR 531) */
|
| 2682 |
spr_set_rights(IBAT1L, SPR_SR | SPR_SW); |
| 2683 |
/* IBAT2U (SPR 532) */
|
| 2684 |
spr_set_rights(IBAT2U, SPR_SR | SPR_SW); |
| 2685 |
/* IBAT2L (SPR 533) */
|
| 2686 |
spr_set_rights(IBAT2L, SPR_SR | SPR_SW); |
| 2687 |
/* IBAT3U (SPR 534) */
|
| 2688 |
spr_set_rights(IBAT3U, SPR_SR | SPR_SW); |
| 2689 |
/* IBAT3L (SPR 535) */
|
| 2690 |
spr_set_rights(IBAT3L, SPR_SR | SPR_SW); |
| 2691 |
/* DBAT0U (SPR 536) */
|
| 2692 |
spr_set_rights(DBAT0U, SPR_SR | SPR_SW); |
| 2693 |
/* DBAT0L (SPR 537) */
|
| 2694 |
spr_set_rights(DBAT0L, SPR_SR | SPR_SW); |
| 2695 |
/* DBAT1U (SPR 538) */
|
| 2696 |
spr_set_rights(DBAT1U, SPR_SR | SPR_SW); |
| 2697 |
/* DBAT1L (SPR 539) */
|
| 2698 |
spr_set_rights(DBAT1L, SPR_SR | SPR_SW); |
| 2699 |
/* DBAT2U (SPR 540) */
|
| 2700 |
spr_set_rights(DBAT2U, SPR_SR | SPR_SW); |
| 2701 |
/* DBAT2L (SPR 541) */
|
| 2702 |
spr_set_rights(DBAT2L, SPR_SR | SPR_SW); |
| 2703 |
/* DBAT3U (SPR 542) */
|
| 2704 |
spr_set_rights(DBAT3U, SPR_SR | SPR_SW); |
| 2705 |
/* DBAT3L (SPR 543) */
|
| 2706 |
spr_set_rights(DBAT3L, SPR_SR | SPR_SW); |
| 2707 |
/* FPECR (SPR 1022) */
|
| 2708 |
spr_set_rights(FPECR, SPR_SR | SPR_SW); |
| 2709 |
/* Special registers for PPC 604 */
|
| 2710 |
if ((pvr & 0xFFFF0000) == 0x00040000) { |
| 2711 |
/* IABR */
|
| 2712 |
spr_set_rights(IABR , SPR_SR | SPR_SW); |
| 2713 |
/* DABR (SPR 1013) */
|
| 2714 |
spr_set_rights(DABR, SPR_SR | SPR_SW); |
| 2715 |
/* HID0 */
|
| 2716 |
spr_set_rights(HID0, SPR_SR | SPR_SW); |
| 2717 |
/* PIR */
|
| 2718 |
spr_set_rights(PIR, SPR_SR | SPR_SW); |
| 2719 |
/* PMC1 */
|
| 2720 |
spr_set_rights(PMC1, SPR_SR | SPR_SW); |
| 2721 |
/* PMC2 */
|
| 2722 |
spr_set_rights(PMC2, SPR_SR | SPR_SW); |
| 2723 |
/* MMCR0 */
|
| 2724 |
spr_set_rights(MMCR0, SPR_SR | SPR_SW); |
| 2725 |
/* SIA */
|
| 2726 |
spr_set_rights(SIA, SPR_SR | SPR_SW); |
| 2727 |
/* SDA */
|
| 2728 |
spr_set_rights(SDA, SPR_SR | SPR_SW); |
| 2729 |
} |
| 2730 |
/* Special registers for MPC740/745/750/755 (aka G3) & IBM 750 */
|
| 2731 |
if ((pvr & 0xFFFF0000) == 0x00080000 || |
| 2732 |
(pvr & 0xFFFF0000) == 0x70000000) { |
| 2733 |
/* HID0 */
|
| 2734 |
spr_set_rights(HID0, SPR_SR | SPR_SW); |
| 2735 |
/* HID1 */
|
| 2736 |
spr_set_rights(HID1, SPR_SR | SPR_SW); |
| 2737 |
/* IABR */
|
| 2738 |
spr_set_rights(IABR, SPR_SR | SPR_SW); |
| 2739 |
/* ICTC */
|
| 2740 |
spr_set_rights(ICTC, SPR_SR | SPR_SW); |
| 2741 |
/* L2CR */
|
| 2742 |
spr_set_rights(L2CR, SPR_SR | SPR_SW); |
| 2743 |
/* MMCR0 */
|
| 2744 |
spr_set_rights(MMCR0, SPR_SR | SPR_SW); |
| 2745 |
/* MMCR1 */
|
| 2746 |
spr_set_rights(MMCR1, SPR_SR | SPR_SW); |
| 2747 |
/* PMC1 */
|
| 2748 |
spr_set_rights(PMC1, SPR_SR | SPR_SW); |
| 2749 |
/* PMC2 */
|
| 2750 |
spr_set_rights(PMC2, SPR_SR | SPR_SW); |
| 2751 |
/* PMC3 */
|
| 2752 |
spr_set_rights(PMC3, SPR_SR | SPR_SW); |
| 2753 |
/* PMC4 */
|
| 2754 |
spr_set_rights(PMC4, SPR_SR | SPR_SW); |
| 2755 |
/* SIA */
|
| 2756 |
spr_set_rights(SIA, SPR_SR | SPR_SW); |
| 2757 |
/* SDA */
|
| 2758 |
spr_set_rights(SDA, SPR_SR | SPR_SW); |
| 2759 |
/* THRM1 */
|
| 2760 |
spr_set_rights(THRM1, SPR_SR | SPR_SW); |
| 2761 |
/* THRM2 */
|
| 2762 |
spr_set_rights(THRM2, SPR_SR | SPR_SW); |
| 2763 |
/* THRM3 */
|
| 2764 |
spr_set_rights(THRM3, SPR_SR | SPR_SW); |
| 2765 |
/* UMMCR0 */
|
| 2766 |
spr_set_rights(UMMCR0, SPR_UR | SPR_UW); |
| 2767 |
/* UMMCR1 */
|
| 2768 |
spr_set_rights(UMMCR1, SPR_UR | SPR_UW); |
| 2769 |
/* UPMC1 */
|
| 2770 |
spr_set_rights(UPMC1, SPR_UR | SPR_UW); |
| 2771 |
/* UPMC2 */
|
| 2772 |
spr_set_rights(UPMC2, SPR_UR | SPR_UW); |
| 2773 |
/* UPMC3 */
|
| 2774 |
spr_set_rights(UPMC3, SPR_UR | SPR_UW); |
| 2775 |
/* UPMC4 */
|
| 2776 |
spr_set_rights(UPMC4, SPR_UR | SPR_UW); |
| 2777 |
/* USIA */
|
| 2778 |
spr_set_rights(USIA, SPR_UR | SPR_UW); |
| 2779 |
} |
| 2780 |
/* MPC755 has special registers */
|
| 2781 |
if (pvr == 0x00083100) { |
| 2782 |
/* SPRG4 */
|
| 2783 |
spr_set_rights(SPRG4, SPR_SR | SPR_SW); |
| 2784 |
/* SPRG5 */
|
| 2785 |
spr_set_rights(SPRG5, SPR_SR | SPR_SW); |
| 2786 |
/* SPRG6 */
|
| 2787 |
spr_set_rights(SPRG6, SPR_SR | SPR_SW); |
| 2788 |
/* SPRG7 */
|
| 2789 |
spr_set_rights(SPRG7, SPR_SR | SPR_SW); |
| 2790 |
/* IBAT4U */
|
| 2791 |
spr_set_rights(IBAT4U, SPR_SR | SPR_SW); |
| 2792 |
/* IBAT4L */
|
| 2793 |
spr_set_rights(IBAT4L, SPR_SR | SPR_SW); |
| 2794 |
/* IBAT5U */
|
| 2795 |
spr_set_rights(IBAT5U, SPR_SR | SPR_SW); |
| 2796 |
/* IBAT5L */
|
| 2797 |
spr_set_rights(IBAT5L, SPR_SR | SPR_SW); |
| 2798 |
/* IBAT6U */
|
| 2799 |
spr_set_rights(IBAT6U, SPR_SR | SPR_SW); |
| 2800 |
/* IBAT6L */
|
| 2801 |
spr_set_rights(IBAT6L, SPR_SR | SPR_SW); |
| 2802 |
/* IBAT7U */
|
| 2803 |
spr_set_rights(IBAT7U, SPR_SR | SPR_SW); |
| 2804 |
/* IBAT7L */
|
| 2805 |
spr_set_rights(IBAT7L, SPR_SR | SPR_SW); |
| 2806 |
/* DBAT4U */
|
| 2807 |
spr_set_rights(DBAT4U, SPR_SR | SPR_SW); |
| 2808 |
/* DBAT4L */
|
| 2809 |
spr_set_rights(DBAT4L, SPR_SR | SPR_SW); |
| 2810 |
/* DBAT5U */
|
| 2811 |
spr_set_rights(DBAT5U, SPR_SR | SPR_SW); |
| 2812 |
/* DBAT5L */
|
| 2813 |
spr_set_rights(DBAT5L, SPR_SR | SPR_SW); |
| 2814 |
/* DBAT6U */
|
| 2815 |
spr_set_rights(DBAT6U, SPR_SR | SPR_SW); |
| 2816 |
/* DBAT6L */
|
| 2817 |
spr_set_rights(DBAT6L, SPR_SR | SPR_SW); |
| 2818 |
/* DBAT7U */
|
| 2819 |
spr_set_rights(DBAT7U, SPR_SR | SPR_SW); |
| 2820 |
/* DBAT7L */
|
| 2821 |
spr_set_rights(DBAT7L, SPR_SR | SPR_SW); |
| 2822 |
/* DMISS */
|
| 2823 |
spr_set_rights(DMISS, SPR_SR | SPR_SW); |
| 2824 |
/* DCMP */
|
| 2825 |
spr_set_rights(DCMP, SPR_SR | SPR_SW); |
| 2826 |
/* DHASH1 */
|
| 2827 |
spr_set_rights(DHASH1, SPR_SR | SPR_SW); |
| 2828 |
/* DHASH2 */
|
| 2829 |
spr_set_rights(DHASH2, SPR_SR | SPR_SW); |
| 2830 |
/* IMISS */
|
| 2831 |
spr_set_rights(IMISS, SPR_SR | SPR_SW); |
| 2832 |
/* ICMP */
|
| 2833 |
spr_set_rights(ICMP, SPR_SR | SPR_SW); |
| 2834 |
/* RPA */
|
| 2835 |
spr_set_rights(RPA, SPR_SR | SPR_SW); |
| 2836 |
/* HID2 */
|
| 2837 |
spr_set_rights(HID2, SPR_SR | SPR_SW); |
| 2838 |
/* L2PM */
|
| 2839 |
spr_set_rights(L2PM, SPR_SR | SPR_SW); |
| 2840 |
} |
| 2841 |
} |
| 2842 |
|
| 2843 |
/*****************************************************************************/
|
| 2844 |
/* PPC "main stream" common instructions (no optional ones) */
|
| 2845 |
|
| 2846 |
typedef struct ppc_proc_t { |
| 2847 |
int flags;
|
| 2848 |
void *specific;
|
| 2849 |
} ppc_proc_t; |
| 2850 |
|
| 2851 |
typedef struct ppc_def_t { |
| 2852 |
unsigned long pvr; |
| 2853 |
unsigned long pvr_mask; |
| 2854 |
ppc_proc_t *proc; |
| 2855 |
} ppc_def_t; |
| 2856 |
|
| 2857 |
static ppc_proc_t ppc_proc_common = {
|
| 2858 |
.flags = PPC_COMMON, |
| 2859 |
.specific = NULL,
|
| 2860 |
}; |
| 2861 |
|
| 2862 |
static ppc_proc_t ppc_proc_G3 = {
|
| 2863 |
.flags = PPC_750, |
| 2864 |
.specific = NULL,
|
| 2865 |
}; |
| 2866 |
|
| 2867 |
static ppc_def_t ppc_defs[] =
|
| 2868 |
{
|
| 2869 |
/* MPC740/745/750/755 (G3) */
|
| 2870 |
{
|
| 2871 |
.pvr = 0x00080000,
|
| 2872 |
.pvr_mask = 0xFFFF0000,
|
| 2873 |
.proc = &ppc_proc_G3, |
| 2874 |
}, |
| 2875 |
/* IBM 750FX (G3 embedded) */
|
| 2876 |
{
|
| 2877 |
.pvr = 0x70000000,
|
| 2878 |
.pvr_mask = 0xFFFF0000,
|
| 2879 |
.proc = &ppc_proc_G3, |
| 2880 |
}, |
| 2881 |
/* Fallback (generic PPC) */
|
| 2882 |
{
|
| 2883 |
.pvr = 0x00000000,
|
| 2884 |
.pvr_mask = 0x00000000,
|
| 2885 |
.proc = &ppc_proc_common, |
| 2886 |
}, |
| 2887 |
}; |
| 2888 |
|
| 2889 |
static int create_ppc_proc (opc_handler_t **ppc_opcodes, unsigned long pvr) |
| 2890 |
{
|
| 2891 |
opcode_t *opc; |
| 2892 |
int i, flags;
|
| 2893 |
|
| 2894 |
fill_new_table(ppc_opcodes, 0x40);
|
| 2895 |
for (i = 0; ; i++) { |
| 2896 |
if ((ppc_defs[i].pvr & ppc_defs[i].pvr_mask) ==
|
| 2897 |
(pvr & ppc_defs[i].pvr_mask)) {
|
| 2898 |
flags = ppc_defs[i].proc->flags; |
| 2899 |
break;
|
| 2900 |
} |
| 2901 |
} |
| 2902 |
|
| 2903 |
for (opc = &opc_start + 1; opc != &opc_end; opc++) { |
| 2904 |
if ((opc->handler.type & flags) != 0) |
| 2905 |
if (register_insn(ppc_opcodes, opc) < 0) { |
| 2906 |
printf("*** ERROR initializing PPC instruction "
|
| 2907 |
"0x%02x 0x%02x 0x%02x\n", opc->opc1, opc->opc2,
|
| 2908 |
opc->opc3); |
| 2909 |
return -1; |
| 2910 |
} |
| 2911 |
} |
| 2912 |
fix_opcode_tables(ppc_opcodes); |
| 2913 |
|
| 2914 |
return 0; |
| 2915 |
} |
| 2916 |
|
| 2917 |
|
| 2918 |
/*****************************************************************************/
|
| 2919 |
/* Misc PPC helpers */
|
| 2920 |
|
| 2921 |
void cpu_ppc_dump_state(CPUPPCState *env, FILE *f, int flags) |
| 2922 |
{
|
| 2923 |
int i;
|
| 2924 |
|
| 2925 |
fprintf(f, "nip=0x%08x LR=0x%08x CTR=0x%08x XER=0x%08x "
|
| 2926 |
"MSR=0x%08x\n", env->nip, env->lr, env->ctr,
|
| 2927 |
_load_xer(env), _load_msr(env)); |
| 2928 |
for (i = 0; i < 32; i++) { |
| 2929 |
if ((i & 7) == 0) |
| 2930 |
fprintf(f, "GPR%02d:", i);
|
| 2931 |
fprintf(f, " %08x", env->gpr[i]);
|
| 2932 |
if ((i & 7) == 7) |
| 2933 |
fprintf(f, "\n");
|
| 2934 |
} |
| 2935 |
fprintf(f, "CR: 0x");
|
| 2936 |
for (i = 0; i < 8; i++) |
| 2937 |
fprintf(f, "%01x", env->crf[i]);
|
| 2938 |
fprintf(f, " [");
|
| 2939 |
for (i = 0; i < 8; i++) { |
| 2940 |
char a = '-'; |
| 2941 |
if (env->crf[i] & 0x08) |
| 2942 |
a = 'L';
|
| 2943 |
else if (env->crf[i] & 0x04) |
| 2944 |
a = 'G';
|
| 2945 |
else if (env->crf[i] & 0x02) |
| 2946 |
a = 'E';
|
| 2947 |
fprintf(f, " %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); |
| 2948 |
} |
| 2949 |
fprintf(f, " ] ");
|
| 2950 |
fprintf(f, "TB: 0x%08x %08x\n", cpu_ppc_load_tbu(env),
|
| 2951 |
cpu_ppc_load_tbl(env)); |
| 2952 |
for (i = 0; i < 16; i++) { |
| 2953 |
if ((i & 3) == 0) |
| 2954 |
fprintf(f, "FPR%02d:", i);
|
| 2955 |
fprintf(f, " %016llx", *((uint64_t *)&env->fpr[i]));
|
| 2956 |
if ((i & 3) == 3) |
| 2957 |
fprintf(f, "\n");
|
| 2958 |
} |
| 2959 |
fprintf(f, "SRR0 0x%08x SRR1 0x%08x DECR=0x%08x\n",
|
| 2960 |
env->spr[SRR0], env->spr[SRR1], cpu_ppc_load_decr(env)); |
| 2961 |
fprintf(f, "reservation 0x%08x\n", env->reserve);
|
| 2962 |
fflush(f); |
| 2963 |
} |
| 2964 |
|
| 2965 |
#if !defined(CONFIG_USER_ONLY) && defined (USE_OPENFIRMWARE)
|
| 2966 |
int setup_machine (CPUPPCState *env, uint32_t mid);
|
| 2967 |
#endif
|
| 2968 |
|
| 2969 |
CPUPPCState *cpu_ppc_init(void)
|
| 2970 |
{
|
| 2971 |
CPUPPCState *env; |
| 2972 |
|
| 2973 |
cpu_exec_init(); |
| 2974 |
|
| 2975 |
env = qemu_mallocz(sizeof(CPUPPCState));
|
| 2976 |
if (!env)
|
| 2977 |
return NULL; |
| 2978 |
#if !defined(CONFIG_USER_ONLY) && defined (USE_OPEN_FIRMWARE)
|
| 2979 |
setup_machine(env, 0);
|
| 2980 |
#else
|
| 2981 |
// env->spr[PVR] = 0; /* Basic PPC */
|
| 2982 |
env->spr[PVR] = 0x00080100; /* G3 CPU */ |
| 2983 |
// env->spr[PVR] = 0x00083100; /* MPC755 (G3 embedded) */
|
| 2984 |
// env->spr[PVR] = 0x00070100; /* IBM 750FX */
|
| 2985 |
#endif
|
| 2986 |
tlb_flush(env, 1);
|
| 2987 |
#if defined (DO_SINGLE_STEP)
|
| 2988 |
/* Single step trace mode */
|
| 2989 |
msr_se = 1;
|
| 2990 |
#endif
|
| 2991 |
msr_fp = 1; /* Allow floating point exceptions */ |
| 2992 |
msr_me = 1; /* Allow machine check exceptions */ |
| 2993 |
#if defined(CONFIG_USER_ONLY)
|
| 2994 |
msr_pr = 1;
|
| 2995 |
cpu_ppc_register(env, 0x00080000);
|
| 2996 |
#else
|
| 2997 |
env->nip = 0xFFFFFFFC;
|
| 2998 |
#endif
|
| 2999 |
env->access_type = ACCESS_INT; |
| 3000 |
cpu_single_env = env; |
| 3001 |
return env;
|
| 3002 |
} |
| 3003 |
|
| 3004 |
int cpu_ppc_register (CPUPPCState *env, uint32_t pvr)
|
| 3005 |
{
|
| 3006 |
env->spr[PVR] = pvr; |
| 3007 |
if (create_ppc_proc(ppc_opcodes, env->spr[PVR]) < 0) |
| 3008 |
return -1; |
| 3009 |
init_spr_rights(env->spr[PVR]); |
| 3010 |
|
| 3011 |
return 0; |
| 3012 |
} |
| 3013 |
|
| 3014 |
void cpu_ppc_close(CPUPPCState *env)
|
| 3015 |
{
|
| 3016 |
/* Should also remove all opcode tables... */
|
| 3017 |
free(env); |
| 3018 |
} |
| 3019 |
|
| 3020 |
/*****************************************************************************/
|
| 3021 |
int print_insn_powerpc (FILE *out, unsigned long insn, unsigned memaddr, |
| 3022 |
int dialect);
|
| 3023 |
|
| 3024 |
int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
|
| 3025 |
int search_pc)
|
| 3026 |
{
|
| 3027 |
DisasContext ctx, *ctxp = &ctx; |
| 3028 |
opc_handler_t **table, *handler; |
| 3029 |
uint32_t pc_start; |
| 3030 |
uint16_t *gen_opc_end; |
| 3031 |
int j, lj = -1; |
| 3032 |
|
| 3033 |
pc_start = tb->pc; |
| 3034 |
gen_opc_ptr = gen_opc_buf; |
| 3035 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 3036 |
gen_opparam_ptr = gen_opparam_buf; |
| 3037 |
ctx.nip = pc_start; |
| 3038 |
ctx.tb = tb; |
| 3039 |
ctx.exception = EXCP_NONE; |
| 3040 |
#if defined(CONFIG_USER_ONLY)
|
| 3041 |
ctx.mem_idx = 0;
|
| 3042 |
#else
|
| 3043 |
ctx.supervisor = 1 - msr_pr;
|
| 3044 |
ctx.mem_idx = (1 - msr_pr);
|
| 3045 |
#endif
|
| 3046 |
#if defined (DO_SINGLE_STEP)
|
| 3047 |
/* Single step trace mode */
|
| 3048 |
msr_se = 1;
|
| 3049 |
#endif
|
| 3050 |
env->access_type = ACCESS_CODE; |
| 3051 |
/* Set env in case of segfault during code fetch */
|
| 3052 |
while (ctx.exception == EXCP_NONE && gen_opc_ptr < gen_opc_end) {
|
| 3053 |
if (search_pc) {
|
| 3054 |
if (loglevel > 0) |
| 3055 |
fprintf(logfile, "Search PC...\n");
|
| 3056 |
j = gen_opc_ptr - gen_opc_buf; |
| 3057 |
if (lj < j) {
|
| 3058 |
lj++; |
| 3059 |
while (lj < j)
|
| 3060 |
gen_opc_instr_start[lj++] = 0;
|
| 3061 |
gen_opc_pc[lj] = ctx.nip; |
| 3062 |
gen_opc_instr_start[lj] = 1;
|
| 3063 |
} |
| 3064 |
} |
| 3065 |
#if defined PPC_DEBUG_DISAS
|
| 3066 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 3067 |
fprintf(logfile, "----------------\n");
|
| 3068 |
fprintf(logfile, "nip=%08x super=%d ir=%d\n",
|
| 3069 |
ctx.nip, 1 - msr_pr, msr_ir);
|
| 3070 |
} |
| 3071 |
#endif
|
| 3072 |
ctx.opcode = ldl_code((void *)ctx.nip);
|
| 3073 |
#if defined PPC_DEBUG_DISAS
|
| 3074 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 3075 |
fprintf(logfile, "translate opcode %08x (%02x %02x %02x)\n",
|
| 3076 |
ctx.opcode, opc1(ctx.opcode), opc2(ctx.opcode), |
| 3077 |
opc3(ctx.opcode)); |
| 3078 |
} |
| 3079 |
#endif
|
| 3080 |
ctx.nip += 4;
|
| 3081 |
table = ppc_opcodes; |
| 3082 |
handler = table[opc1(ctx.opcode)]; |
| 3083 |
if (is_indirect_opcode(handler)) {
|
| 3084 |
table = ind_table(handler); |
| 3085 |
handler = table[opc2(ctx.opcode)]; |
| 3086 |
if (is_indirect_opcode(handler)) {
|
| 3087 |
table = ind_table(handler); |
| 3088 |
handler = table[opc3(ctx.opcode)]; |
| 3089 |
} |
| 3090 |
} |
| 3091 |
/* Is opcode *REALLY* valid ? */
|
| 3092 |
if (handler->handler == &gen_invalid) {
|
| 3093 |
if (loglevel > 0) { |
| 3094 |
fprintf(logfile, "invalid/unsupported opcode: "
|
| 3095 |
"%02x - %02x - %02x (%08x) 0x%08x %d\n",
|
| 3096 |
opc1(ctx.opcode), opc2(ctx.opcode), |
| 3097 |
opc3(ctx.opcode), ctx.opcode, ctx.nip - 4, msr_ir);
|
| 3098 |
} else {
|
| 3099 |
printf("invalid/unsupported opcode: "
|
| 3100 |
"%02x - %02x - %02x (%08x) 0x%08x %d\n",
|
| 3101 |
opc1(ctx.opcode), opc2(ctx.opcode), |
| 3102 |
opc3(ctx.opcode), ctx.opcode, ctx.nip - 4, msr_ir);
|
| 3103 |
} |
| 3104 |
} else {
|
| 3105 |
if ((ctx.opcode & handler->inval) != 0) { |
| 3106 |
if (loglevel > 0) { |
| 3107 |
fprintf(logfile, "invalid bits: %08x for opcode: "
|
| 3108 |
"%02x -%02x - %02x (0x%08x) (0x%08x)\n",
|
| 3109 |
ctx.opcode & handler->inval, opc1(ctx.opcode), |
| 3110 |
opc2(ctx.opcode), opc3(ctx.opcode), |
| 3111 |
ctx.opcode, ctx.nip - 4);
|
| 3112 |
} else {
|
| 3113 |
printf("invalid bits: %08x for opcode: "
|
| 3114 |
"%02x -%02x - %02x (0x%08x) (0x%08x)\n",
|
| 3115 |
ctx.opcode & handler->inval, opc1(ctx.opcode), |
| 3116 |
opc2(ctx.opcode), opc3(ctx.opcode), |
| 3117 |
ctx.opcode, ctx.nip - 4);
|
| 3118 |
} |
| 3119 |
RET_INVAL(ctxp); |
| 3120 |
break;
|
| 3121 |
} |
| 3122 |
} |
| 3123 |
(*(handler->handler))(&ctx); |
| 3124 |
/* Check trace mode exceptions */
|
| 3125 |
if ((msr_be && ctx.exception == EXCP_BRANCH) ||
|
| 3126 |
/* Check in single step trace mode
|
| 3127 |
* we need to stop except if:
|
| 3128 |
* - rfi, trap or syscall
|
| 3129 |
* - first instruction of an exception handler
|
| 3130 |
*/
|
| 3131 |
(msr_se && (ctx.nip < 0x100 ||
|
| 3132 |
ctx.nip > 0xF00 ||
|
| 3133 |
(ctx.nip & 0xFC) != 0x04) && |
| 3134 |
ctx.exception != EXCP_SYSCALL && ctx.exception != EXCP_RFI && |
| 3135 |
ctx.exception != EXCP_TRAP)) {
|
| 3136 |
RET_EXCP(ctxp, EXCP_TRACE, 0);
|
| 3137 |
} |
| 3138 |
/* if we reach a page boundary, stop generation */
|
| 3139 |
if ((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) { |
| 3140 |
RET_EXCP(ctxp, EXCP_BRANCH, 0);
|
| 3141 |
} |
| 3142 |
} |
| 3143 |
if (ctx.exception == EXCP_NONE) {
|
| 3144 |
gen_op_b((unsigned long)ctx.tb, ctx.nip); |
| 3145 |
} else if (ctx.exception != EXCP_BRANCH) { |
| 3146 |
gen_op_set_T0(0);
|
| 3147 |
} |
| 3148 |
#if 1 |
| 3149 |
/* TO BE FIXED: T0 hasn't got a proper value, which makes tb_add_jump
|
| 3150 |
* do bad business and then qemu crashes !
|
| 3151 |
*/
|
| 3152 |
gen_op_set_T0(0);
|
| 3153 |
#endif
|
| 3154 |
/* Generate the return instruction */
|
| 3155 |
gen_op_exit_tb(); |
| 3156 |
*gen_opc_ptr = INDEX_op_end; |
| 3157 |
if (search_pc) {
|
| 3158 |
j = gen_opc_ptr - gen_opc_buf; |
| 3159 |
lj++; |
| 3160 |
while (lj <= j)
|
| 3161 |
gen_opc_instr_start[lj++] = 0;
|
| 3162 |
tb->size = 0;
|
| 3163 |
#if 0
|
| 3164 |
if (loglevel > 0) {
|
| 3165 |
page_dump(logfile);
|
| 3166 |
}
|
| 3167 |
#endif
|
| 3168 |
} else {
|
| 3169 |
tb->size = ctx.nip - pc_start; |
| 3170 |
} |
| 3171 |
#ifdef DEBUG_DISAS
|
| 3172 |
if (loglevel & CPU_LOG_TB_CPU) {
|
| 3173 |
fprintf(logfile, "---------------- excp: %04x\n", ctx.exception);
|
| 3174 |
cpu_ppc_dump_state(env, logfile, 0);
|
| 3175 |
} |
| 3176 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 3177 |
fprintf(logfile, "IN: %s\n", lookup_symbol((void *)pc_start)); |
| 3178 |
disas(logfile, (void *)pc_start, ctx.nip - pc_start, 0, 0); |
| 3179 |
fprintf(logfile, "\n");
|
| 3180 |
} |
| 3181 |
if (loglevel & CPU_LOG_TB_OP) {
|
| 3182 |
fprintf(logfile, "OP:\n");
|
| 3183 |
dump_ops(gen_opc_buf, gen_opparam_buf); |
| 3184 |
fprintf(logfile, "\n");
|
| 3185 |
} |
| 3186 |
#endif
|
| 3187 |
env->access_type = ACCESS_INT; |
| 3188 |
|
| 3189 |
return 0; |
| 3190 |
} |
| 3191 |
|
| 3192 |
int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
| 3193 |
{
|
| 3194 |
return gen_intermediate_code_internal(env, tb, 0); |
| 3195 |
} |
| 3196 |
|
| 3197 |
int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
| 3198 |
{
|
| 3199 |
return gen_intermediate_code_internal(env, tb, 1); |
| 3200 |
} |