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/*
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SPARC micro operations
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Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h" |
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/*XXX*/
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#define REGNAME g0
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#define REG (env->gregs[0]) |
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#include "op_template.h" |
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#define REGNAME g1
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#define REG (env->gregs[1]) |
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#include "op_template.h" |
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#define REGNAME g2
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#define REG (env->gregs[2]) |
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#include "op_template.h" |
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#define REGNAME g3
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#define REG (env->gregs[3]) |
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#include "op_template.h" |
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#define REGNAME g4
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#define REG (env->gregs[4]) |
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#include "op_template.h" |
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#define REGNAME g5
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#define REG (env->gregs[5]) |
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#include "op_template.h" |
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#define REGNAME g6
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#define REG (env->gregs[6]) |
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#include "op_template.h" |
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#define REGNAME g7
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#define REG (env->gregs[7]) |
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#include "op_template.h" |
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#define REGNAME i0
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#define REG (env->regwptr[16]) |
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#include "op_template.h" |
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#define REGNAME i1
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#define REG (env->regwptr[17]) |
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#include "op_template.h" |
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#define REGNAME i2
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#define REG (env->regwptr[18]) |
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#include "op_template.h" |
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#define REGNAME i3
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#define REG (env->regwptr[19]) |
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#include "op_template.h" |
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#define REGNAME i4
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#define REG (env->regwptr[20]) |
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#include "op_template.h" |
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#define REGNAME i5
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#define REG (env->regwptr[21]) |
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#include "op_template.h" |
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#define REGNAME i6
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#define REG (env->regwptr[22]) |
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#include "op_template.h" |
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#define REGNAME i7
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#define REG (env->regwptr[23]) |
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#include "op_template.h" |
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#define REGNAME l0
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#define REG (env->regwptr[8]) |
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#include "op_template.h" |
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#define REGNAME l1
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#define REG (env->regwptr[9]) |
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#include "op_template.h" |
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#define REGNAME l2
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#define REG (env->regwptr[10]) |
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#include "op_template.h" |
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#define REGNAME l3
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#define REG (env->regwptr[11]) |
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#include "op_template.h" |
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#define REGNAME l4
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#define REG (env->regwptr[12]) |
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#include "op_template.h" |
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#define REGNAME l5
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#define REG (env->regwptr[13]) |
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#include "op_template.h" |
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#define REGNAME l6
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#define REG (env->regwptr[14]) |
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#include "op_template.h" |
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#define REGNAME l7
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#define REG (env->regwptr[15]) |
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#include "op_template.h" |
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#define REGNAME o0
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#define REG (env->regwptr[0]) |
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#include "op_template.h" |
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#define REGNAME o1
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#define REG (env->regwptr[1]) |
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#include "op_template.h" |
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#define REGNAME o2
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#define REG (env->regwptr[2]) |
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#include "op_template.h" |
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#define REGNAME o3
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#define REG (env->regwptr[3]) |
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#include "op_template.h" |
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#define REGNAME o4
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#define REG (env->regwptr[4]) |
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#include "op_template.h" |
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#define REGNAME o5
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#define REG (env->regwptr[5]) |
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#include "op_template.h" |
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#define REGNAME o6
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#define REG (env->regwptr[6]) |
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#include "op_template.h" |
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#define REGNAME o7
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#define REG (env->regwptr[7]) |
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#include "op_template.h" |
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#define EIP (env->pc)
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#define FLAG_SET(x) (env->psr&x)?1:0 |
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void OPPROTO op_movl_T0_0(void) |
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{
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T0 = 0;
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} |
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void OPPROTO op_movl_T0_1(void) |
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{
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T0 = 1;
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} |
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void OPPROTO op_movl_T0_im(void) |
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{
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T0 = PARAM1; |
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} |
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void OPPROTO op_movl_T1_im(void) |
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{
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T1 = PARAM1; |
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} |
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void OPPROTO op_movl_T2_im(void) |
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{
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T2 = PARAM1; |
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} |
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void OPPROTO op_addl_T1_im(void) |
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{
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T1 += PARAM1; |
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} |
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void OPPROTO op_addl_T1_T2(void) |
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{
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T1 += T2; |
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} |
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void OPPROTO op_subl_T1_T2(void) |
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{
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T1 -= T2; |
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} |
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void OPPROTO op_add_T1_T0(void) |
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{
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T0 += T1; |
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} |
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void OPPROTO op_add_T1_T0_cc(void) |
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{
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unsigned int src1; |
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src1 = T0; |
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T0 += T1; |
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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if (T0 < src1)
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env->psr |= PSR_CARRY; |
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if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31)) |
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env->psr |= PSR_OVF; |
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FORCE_RET(); |
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} |
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void OPPROTO op_sub_T1_T0(void) |
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{
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T0 -= T1; |
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} |
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void OPPROTO op_sub_T1_T0_cc(void) |
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{
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unsigned int src1; |
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src1 = T0; |
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T0 -= T1; |
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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if (src1 < T1)
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env->psr |= PSR_CARRY; |
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if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31)) |
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env->psr |= PSR_OVF; |
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FORCE_RET(); |
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} |
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void OPPROTO op_and_T1_T0(void) |
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{
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T0 &= T1; |
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} |
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void OPPROTO op_or_T1_T0(void) |
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{
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T0 |= T1; |
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} |
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void OPPROTO op_xor_T1_T0(void) |
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{
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T0 ^= T1; |
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} |
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void OPPROTO op_andn_T1_T0(void) |
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{
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T0 &= ~T1; |
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} |
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void OPPROTO op_orn_T1_T0(void) |
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{
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T0 |= ~T1; |
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} |
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void OPPROTO op_xnor_T1_T0(void) |
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{
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T0 ^= ~T1; |
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} |
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void OPPROTO op_addx_T1_T0(void) |
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{
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T0 += T1 + ((env->psr & PSR_CARRY) ? 1 : 0); |
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} |
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void OPPROTO op_umul_T1_T0(void) |
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{
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uint64_t res; |
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res = (uint64_t) T0 *(uint64_t) T1; |
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T0 = res & 0xffffffff;
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env->y = res >> 32;
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} |
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void OPPROTO op_smul_T1_T0(void) |
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{
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uint64_t res; |
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res = (int64_t) ((int32_t) T0) * (int64_t) ((int32_t) T1); |
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T0 = res & 0xffffffff;
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env->y = res >> 32;
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} |
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void OPPROTO op_mulscc_T1_T0(void) |
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{
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unsigned int b1, C, V, b2, src1; |
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C = FLAG_SET(PSR_CARRY); |
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V = FLAG_SET(PSR_OVF); |
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b1 = C ^ V; |
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b2 = T0 & 1;
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T0 = (b1 << 31) | (T0 >> 1); |
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if (!(env->y & 1)) |
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T1 = 0;
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/* do addition and update flags */
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src1 = T0; |
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T0 += T1; |
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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if (T0 < src1)
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env->psr |= PSR_CARRY; |
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if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31)) |
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env->psr |= PSR_OVF; |
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env->y = (b2 << 31) | (env->y >> 1); |
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FORCE_RET(); |
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} |
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void OPPROTO op_udiv_T1_T0(void) |
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{
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uint64_t x0; |
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uint32_t x1; |
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x0 = T0 | ((uint64_t) (env->y) << 32);
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x1 = T1; |
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x0 = x0 / x1; |
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if (x0 > 0xffffffff) { |
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T0 = 0xffffffff;
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T1 = 1;
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} else {
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T0 = x0; |
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T1 = 0;
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} |
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FORCE_RET(); |
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} |
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void OPPROTO op_sdiv_T1_T0(void) |
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{
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int64_t x0; |
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int32_t x1; |
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x0 = T0 | ((uint64_t) (env->y) << 32);
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x1 = T1; |
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x0 = x0 / x1; |
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if ((int32_t) x0 != x0) {
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T0 = x0 >> 63;
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T1 = 1;
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} else {
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T0 = x0; |
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T1 = 0;
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} |
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FORCE_RET(); |
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} |
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void OPPROTO op_div_cc(void) |
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{
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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if (T1)
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env->psr |= PSR_OVF; |
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FORCE_RET(); |
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} |
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void OPPROTO op_subx_T1_T0(void) |
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{
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T0 -= T1 + ((env->psr & PSR_CARRY) ? 1 : 0); |
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} |
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void OPPROTO op_logic_T0_cc(void) |
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{
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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FORCE_RET(); |
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} |
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void OPPROTO op_set_flags(void) |
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{
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env->psr = 0;
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if (!T0)
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env->psr |= PSR_ZERO; |
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if ((unsigned int) T0 < (unsigned int) T1) |
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env->psr |= PSR_CARRY; |
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if ((int) T0 < (int) T1) |
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env->psr |= PSR_OVF; |
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if ((int) T0 < 0) |
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env->psr |= PSR_NEG; |
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FORCE_RET(); |
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} |
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void OPPROTO op_sll(void) |
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{
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T0 <<= T1; |
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} |
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void OPPROTO op_srl(void) |
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{
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T0 >>= T1; |
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} |
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void OPPROTO op_sra(void) |
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{
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T0 = ((int32_t) T0) >> T1; |
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} |
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void OPPROTO op_st(void) |
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{
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stl((void *) T0, T1);
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} |
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void OPPROTO op_stb(void) |
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{
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stb((void *) T0, T1);
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} |
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void OPPROTO op_sth(void) |
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{
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stw((void *) T0, T1);
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} |
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void OPPROTO op_std(void) |
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{
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stl((void *) T0, T1);
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stl((void *) (T0 + 4), T2); |
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} |
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void OPPROTO op_ld(void) |
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{
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T1 = ldl((void *) T0);
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} |
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void OPPROTO op_ldub(void) |
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{
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T1 = ldub((void *) T0);
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} |
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void OPPROTO op_lduh(void) |
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{
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T1 = lduw((void *) T0);
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} |
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void OPPROTO op_ldsb(void) |
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{
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T1 = ldsb((void *) T0);
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} |
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void OPPROTO op_ldsh(void) |
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{
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T1 = ldsw((void *) T0);
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} |
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void OPPROTO op_ldstub(void) |
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{
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T1 = ldub((void *) T0);
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stb((void *) T0, 0xff); /* XXX: Should be Atomically */ |
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} |
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|
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void OPPROTO op_swap(void) |
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{
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unsigned int tmp = ldl((void *) T0); |
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stl((void *) T0, T1); /* XXX: Should be Atomically */ |
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T1 = tmp; |
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} |
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void OPPROTO op_ldd(void) |
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{
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T1 = ldl((void *) T0);
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T0 = ldl((void *) (T0 + 4)); |
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} |
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|
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void OPPROTO op_wry(void) |
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{
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env->y = T0; |
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} |
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|
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void OPPROTO op_rdy(void) |
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{
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T0 = env->y; |
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} |
| 452 |
|
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void raise_exception(int tt) |
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{
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env->exception_index = tt; |
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cpu_loop_exit(); |
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} |
| 458 |
|
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void memcpy32(uint32_t *dst, const uint32_t *src) |
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{
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dst[0] = src[0]; |
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dst[1] = src[1]; |
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dst[2] = src[2]; |
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dst[3] = src[3]; |
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dst[4] = src[4]; |
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dst[5] = src[5]; |
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dst[6] = src[6]; |
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dst[7] = src[7]; |
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} |
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|
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static inline void set_cwp(int new_cwp) |
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{
|
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/* put the modified wrap registers at their proper location */
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if (env->cwp == (NWINDOWS - 1)) |
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memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
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env->cwp = new_cwp; |
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/* put the wrap registers at their temporary location */
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if (new_cwp == (NWINDOWS - 1)) |
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memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
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env->regwptr = env->regbase + (new_cwp * 16);
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} |
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|
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/* XXX: use another pointer for %iN registers to avoid slow wrapping
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handling ? */
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void OPPROTO op_save(void) |
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{
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int cwp;
|
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cwp = (env->cwp - 1) & (NWINDOWS - 1); |
| 489 |
if (env->wim & (1 << cwp)) { |
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raise_exception(TT_WIN_OVF); |
| 491 |
} |
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set_cwp(cwp); |
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FORCE_RET(); |
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} |
| 495 |
|
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void OPPROTO op_restore(void) |
| 497 |
{
|
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int cwp;
|
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cwp = (env->cwp + 1) & (NWINDOWS - 1); |
| 500 |
if (env->wim & (1 << cwp)) { |
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raise_exception(TT_WIN_UNF); |
| 502 |
} |
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set_cwp(cwp); |
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FORCE_RET(); |
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} |
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|
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void OPPROTO op_exception(void) |
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{
|
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env->exception_index = PARAM1; |
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cpu_loop_exit(); |
| 511 |
} |
| 512 |
|
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void OPPROTO op_trap_T0(void) |
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{
|
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env->exception_index = TT_TRAP + (T0 & 0x7f);
|
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cpu_loop_exit(); |
| 517 |
} |
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|
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void OPPROTO op_trapcc_T0(void) |
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{
|
| 521 |
if (T2) {
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env->exception_index = TT_TRAP + (T0 & 0x7f);
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cpu_loop_exit(); |
| 524 |
} |
| 525 |
FORCE_RET(); |
| 526 |
} |
| 527 |
|
| 528 |
void OPPROTO op_exit_tb(void) |
| 529 |
{
|
| 530 |
EXIT_TB(); |
| 531 |
} |
| 532 |
|
| 533 |
void OPPROTO op_eval_be(void) |
| 534 |
{
|
| 535 |
T2 = (env->psr & PSR_ZERO); |
| 536 |
} |
| 537 |
|
| 538 |
void OPPROTO op_eval_ble(void) |
| 539 |
{
|
| 540 |
unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF); |
| 541 |
|
| 542 |
T2 = Z | (N ^ V); |
| 543 |
} |
| 544 |
|
| 545 |
void OPPROTO op_eval_bl(void) |
| 546 |
{
|
| 547 |
unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF); |
| 548 |
|
| 549 |
T2 = N ^ V; |
| 550 |
} |
| 551 |
|
| 552 |
void OPPROTO op_eval_bleu(void) |
| 553 |
{
|
| 554 |
unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY); |
| 555 |
|
| 556 |
T2 = C | Z; |
| 557 |
} |
| 558 |
|
| 559 |
void OPPROTO op_eval_bcs(void) |
| 560 |
{
|
| 561 |
T2 = (env->psr & PSR_CARRY); |
| 562 |
} |
| 563 |
|
| 564 |
void OPPROTO op_eval_bvs(void) |
| 565 |
{
|
| 566 |
T2 = (env->psr & PSR_OVF); |
| 567 |
} |
| 568 |
|
| 569 |
void OPPROTO op_eval_bneg(void) |
| 570 |
{
|
| 571 |
T2 = (env->psr & PSR_NEG); |
| 572 |
} |
| 573 |
|
| 574 |
void OPPROTO op_eval_bne(void) |
| 575 |
{
|
| 576 |
T2 = !(env->psr & PSR_ZERO); |
| 577 |
} |
| 578 |
|
| 579 |
void OPPROTO op_eval_bg(void) |
| 580 |
{
|
| 581 |
unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF); |
| 582 |
|
| 583 |
T2 = !(Z | (N ^ V)); |
| 584 |
} |
| 585 |
|
| 586 |
void OPPROTO op_eval_bge(void) |
| 587 |
{
|
| 588 |
unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF); |
| 589 |
|
| 590 |
T2 = !(N ^ V); |
| 591 |
} |
| 592 |
|
| 593 |
void OPPROTO op_eval_bgu(void) |
| 594 |
{
|
| 595 |
unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY); |
| 596 |
|
| 597 |
T2 = !(C | Z); |
| 598 |
} |
| 599 |
|
| 600 |
void OPPROTO op_eval_bcc(void) |
| 601 |
{
|
| 602 |
T2 = !(env->psr & PSR_CARRY); |
| 603 |
} |
| 604 |
|
| 605 |
void OPPROTO op_eval_bpos(void) |
| 606 |
{
|
| 607 |
T2 = !(env->psr & PSR_NEG); |
| 608 |
} |
| 609 |
|
| 610 |
void OPPROTO op_eval_bvc(void) |
| 611 |
{
|
| 612 |
T2 = !(env->psr & PSR_OVF); |
| 613 |
} |
| 614 |
|
| 615 |
void OPPROTO op_movl_T2_0(void) |
| 616 |
{
|
| 617 |
T2 = 0;
|
| 618 |
} |
| 619 |
|
| 620 |
void OPPROTO op_movl_T2_1(void) |
| 621 |
{
|
| 622 |
T2 = 1;
|
| 623 |
} |
| 624 |
|
| 625 |
void OPPROTO op_jmp_im(void) |
| 626 |
{
|
| 627 |
env->pc = PARAM1; |
| 628 |
} |
| 629 |
|
| 630 |
void OPPROTO op_movl_npc_im(void) |
| 631 |
{
|
| 632 |
env->npc = PARAM1; |
| 633 |
} |
| 634 |
|
| 635 |
void OPPROTO op_movl_npc_T0(void) |
| 636 |
{
|
| 637 |
env->npc = T0; |
| 638 |
} |
| 639 |
|
| 640 |
void OPPROTO op_next_insn(void) |
| 641 |
{
|
| 642 |
env->pc = env->npc; |
| 643 |
env->npc = env->npc + 4;
|
| 644 |
} |
| 645 |
|
| 646 |
void OPPROTO op_branch(void) |
| 647 |
{
|
| 648 |
env->npc = PARAM3; /* XXX: optimize */
|
| 649 |
JUMP_TB(op_branch, PARAM1, 0, PARAM2);
|
| 650 |
} |
| 651 |
|
| 652 |
void OPPROTO op_branch2(void) |
| 653 |
{
|
| 654 |
if (T2) {
|
| 655 |
env->npc = PARAM2 + 4;
|
| 656 |
JUMP_TB(op_branch2, PARAM1, 0, PARAM2);
|
| 657 |
} else {
|
| 658 |
env->npc = PARAM3 + 4;
|
| 659 |
JUMP_TB(op_branch2, PARAM1, 1, PARAM3);
|
| 660 |
} |
| 661 |
FORCE_RET(); |
| 662 |
} |
| 663 |
|
| 664 |
void OPPROTO op_branch_a(void) |
| 665 |
{
|
| 666 |
if (T2) {
|
| 667 |
env->npc = PARAM2; /* XXX: optimize */
|
| 668 |
JUMP_TB(op_generic_branch_a, PARAM1, 0, PARAM3);
|
| 669 |
} else {
|
| 670 |
env->npc = PARAM3 + 8; /* XXX: optimize */ |
| 671 |
JUMP_TB(op_generic_branch_a, PARAM1, 1, PARAM3 + 4); |
| 672 |
} |
| 673 |
FORCE_RET(); |
| 674 |
} |
| 675 |
|
| 676 |
void OPPROTO op_generic_branch(void) |
| 677 |
{
|
| 678 |
if (T2) {
|
| 679 |
env->npc = PARAM1; |
| 680 |
} else {
|
| 681 |
env->npc = PARAM2; |
| 682 |
} |
| 683 |
FORCE_RET(); |
| 684 |
} |
| 685 |
|