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/*
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* CRIS emulation micro-operations for qemu.
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*
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* Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
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*
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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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*
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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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*
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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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#define REGNAME r0
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#define REG (env->regs[0]) |
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#include "op_template.h" |
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#define REGNAME r1
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#define REG (env->regs[1]) |
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#include "op_template.h" |
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#define REGNAME r2
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#define REG (env->regs[2]) |
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#include "op_template.h" |
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#define REGNAME r3
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#define REG (env->regs[3]) |
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#include "op_template.h" |
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|
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#define REGNAME r4
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#define REG (env->regs[4]) |
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#include "op_template.h" |
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#define REGNAME r5
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#define REG (env->regs[5]) |
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#include "op_template.h" |
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#define REGNAME r6
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#define REG (env->regs[6]) |
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#include "op_template.h" |
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#define REGNAME r7
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#define REG (env->regs[7]) |
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#include "op_template.h" |
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#define REGNAME r8
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#define REG (env->regs[8]) |
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#include "op_template.h" |
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#define REGNAME r9
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#define REG (env->regs[9]) |
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#include "op_template.h" |
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#define REGNAME r10
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#define REG (env->regs[10]) |
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#include "op_template.h" |
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#define REGNAME r11
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#define REG (env->regs[11]) |
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#include "op_template.h" |
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#define REGNAME r12
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#define REG (env->regs[12]) |
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#include "op_template.h" |
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#define REGNAME r13
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#define REG (env->regs[13]) |
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#include "op_template.h" |
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#define REGNAME r14
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#define REG (env->regs[14]) |
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#include "op_template.h" |
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#define REGNAME r15
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#define REG (env->regs[15]) |
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#include "op_template.h" |
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#define REGNAME p0
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#define REG (env->pregs[0]) |
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#include "op_template.h" |
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#define REGNAME p1
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#define REG (env->pregs[1]) |
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#include "op_template.h" |
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#define REGNAME p2
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#define REG (env->pregs[2]) |
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#include "op_template.h" |
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#define REGNAME p3
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#define REG (env->pregs[3]) |
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#include "op_template.h" |
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#define REGNAME p4
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#define REG (env->pregs[4]) |
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#include "op_template.h" |
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#define REGNAME p5
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#define REG (env->pregs[5]) |
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#include "op_template.h" |
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#define REGNAME p6
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#define REG (env->pregs[6]) |
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#include "op_template.h" |
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#define REGNAME p7
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#define REG (env->pregs[7]) |
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#include "op_template.h" |
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#define REGNAME p8
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#define REG (env->pregs[8]) |
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#include "op_template.h" |
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#define REGNAME p9
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#define REG (env->pregs[9]) |
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#include "op_template.h" |
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#define REGNAME p10
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#define REG (env->pregs[10]) |
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#include "op_template.h" |
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#define REGNAME p11
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#define REG (env->pregs[11]) |
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#include "op_template.h" |
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#define REGNAME p12
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#define REG (env->pregs[12]) |
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#include "op_template.h" |
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#define REGNAME p13
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#define REG (env->pregs[13]) |
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#include "op_template.h" |
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#define REGNAME p14
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#define REG (env->pregs[14]) |
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#include "op_template.h" |
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#define REGNAME p15
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#define REG (env->pregs[15]) |
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#include "op_template.h" |
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/* Microcode. */
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void OPPROTO op_exit_tb (void) |
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{
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EXIT_TB(); |
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} |
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void OPPROTO op_goto_tb0 (void) |
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{
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GOTO_TB(op_goto_tb0, PARAM1, 0);
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RETURN(); |
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} |
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void OPPROTO op_goto_tb1 (void) |
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{
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GOTO_TB(op_goto_tb1, PARAM1, 1);
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RETURN(); |
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} |
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void OPPROTO op_break_im(void) |
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{
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env->trapnr = PARAM1; |
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env->exception_index = EXCP_BREAK; |
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cpu_loop_exit(); |
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} |
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void OPPROTO op_debug(void) |
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{
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env->exception_index = EXCP_DEBUG; |
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cpu_loop_exit(); |
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} |
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void OPPROTO op_exec_insn(void) |
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{
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env->stats.exec_insns++; |
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RETURN(); |
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} |
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void OPPROTO op_exec_load(void) |
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{
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env->stats.exec_loads++; |
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RETURN(); |
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} |
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void OPPROTO op_exec_store(void) |
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{
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env->stats.exec_stores++; |
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RETURN(); |
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} |
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void OPPROTO op_ccs_lshift (void) |
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{
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uint32_t ccs; |
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/* Apply the ccs shift. */
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ccs = env->pregs[SR_CCS]; |
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ccs = (ccs & 0xc0000000) | ((ccs << 12) >> 2); |
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env->pregs[SR_CCS] = ccs; |
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} |
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void OPPROTO op_ccs_rshift (void) |
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{
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uint32_t ccs; |
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/* Apply the ccs shift. */
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ccs = env->pregs[SR_CCS]; |
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ccs = (ccs & 0xc0000000) | (ccs >> 10); |
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env->pregs[SR_CCS] = ccs; |
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} |
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void OPPROTO op_setf (void) |
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{
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env->pregs[SR_CCS] |= PARAM1; |
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RETURN(); |
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} |
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void OPPROTO op_clrf (void) |
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{
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env->pregs[SR_CCS] &= ~PARAM1; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug1_T0 (void) |
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{
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env->debug1 = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug2_T0 (void) |
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{
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env->debug2 = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug3_T0 (void) |
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{
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env->debug3 = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug1_T1 (void) |
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{
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env->debug1 = T1; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug2_T1 (void) |
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{
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env->debug2 = T1; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug3_T1 (void) |
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{
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env->debug3 = T1; |
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RETURN(); |
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} |
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void OPPROTO op_movl_debug3_im (void) |
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{
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env->debug3 = PARAM1; |
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RETURN(); |
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} |
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void OPPROTO op_movl_T0_flags (void) |
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{
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T0 = env->pregs[SR_CCS]; |
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RETURN(); |
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} |
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void OPPROTO op_movl_flags_T0 (void) |
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{
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env->pregs[SR_CCS] = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_sreg_T0 (void) |
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{
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env->sregs[env->pregs[SR_SRS]][PARAM1] = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_tlb_lo_T0 (void) |
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{
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int srs;
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srs = env->pregs[SR_SRS]; |
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if (srs == 1 || srs == 2) |
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{
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int set;
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int idx;
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uint32_t lo, hi; |
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idx = set = env->sregs[SFR_RW_MM_TLB_SEL]; |
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set >>= 4;
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set &= 3;
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idx &= 31;
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/* We've just made a write to tlb_lo. */
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lo = env->sregs[SFR_RW_MM_TLB_LO]; |
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hi = env->sregs[SFR_RW_MM_TLB_HI]; |
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env->tlbsets[srs - 1][set][idx].lo = lo;
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env->tlbsets[srs - 1][set][idx].hi = hi;
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} |
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RETURN(); |
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} |
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void OPPROTO op_movl_T0_sreg (void) |
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{
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T0 = env->sregs[env->pregs[SR_SRS]][PARAM1]; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc (void) |
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{
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env->cc_op = PARAM1; |
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env->cc_dest = PARAM2; |
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env->cc_src = PARAM3; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc_op (void) |
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{
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env->cc_op = PARAM1; |
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RETURN(); |
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} |
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|
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void OPPROTO op_update_cc_mask (void) |
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{
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env->cc_mask = PARAM1; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc_dest_T0 (void) |
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{
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env->cc_dest = T0; |
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RETURN(); |
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} |
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|
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void OPPROTO op_update_cc_result_T0 (void) |
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{
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env->cc_result = T0; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc_size_im (void) |
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{
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env->cc_size = PARAM1; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc_src_T1 (void) |
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{
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env->cc_src = T1; |
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RETURN(); |
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} |
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void OPPROTO op_update_cc_x (void) |
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{
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env->cc_x_live = PARAM1; |
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env->cc_x = PARAM2; |
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RETURN(); |
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} |
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|
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/* FIXME: is this allowed? */
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extern inline void evaluate_flags_writeback(uint32_t flags) |
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{
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int x;
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/* Extended arithmetics, leave the z flag alone. */
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env->debug3 = env->pregs[SR_CCS]; |
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if (env->cc_x_live)
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x = env->cc_x; |
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else
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x = env->pregs[SR_CCS] & X_FLAG; |
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if ((x || env->cc_op == CC_OP_ADDC)
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&& flags & Z_FLAG) |
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env->cc_mask &= ~Z_FLAG; |
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/* all insn clear the x-flag except setf or clrf. */
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env->pregs[SR_CCS] &= ~(env->cc_mask | X_FLAG); |
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flags &= env->cc_mask; |
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env->pregs[SR_CCS] |= flags; |
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RETURN(); |
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} |
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|
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void OPPROTO op_evaluate_flags_muls(void) |
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{
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uint32_t src; |
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uint32_t dst; |
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uint32_t res; |
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uint32_t flags = 0;
|
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/* were gonna have to redo the muls. */
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int64_t tmp, t0 ,t1; |
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int32_t mof; |
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int dneg;
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src = env->cc_src; |
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dst = env->cc_dest; |
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res = env->cc_result; |
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|
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/* cast into signed values to make GCC sign extend. */
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t0 = (int32_t)src; |
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t1 = (int32_t)dst; |
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dneg = ((int32_t)res) < 0;
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tmp = t0 * t1; |
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mof = tmp >> 32;
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if (tmp == 0) |
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flags |= Z_FLAG; |
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else if (tmp < 0) |
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flags |= N_FLAG; |
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if ((dneg && mof != -1) |
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|| (!dneg && mof != 0))
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flags |= V_FLAG; |
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evaluate_flags_writeback(flags); |
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RETURN(); |
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} |
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|
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void OPPROTO op_evaluate_flags_mulu(void) |
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{
|
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uint32_t src; |
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uint32_t dst; |
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uint32_t res; |
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uint32_t flags = 0;
|
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/* were gonna have to redo the muls. */
|
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uint64_t tmp, t0 ,t1; |
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uint32_t mof; |
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|
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src = env->cc_src; |
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dst = env->cc_dest; |
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res = env->cc_result; |
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|
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|
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/* cast into signed values to make GCC sign extend. */
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t0 = src; |
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t1 = dst; |
| 443 |
|
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tmp = t0 * t1; |
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mof = tmp >> 32;
|
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if (tmp == 0) |
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flags |= Z_FLAG; |
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else if (tmp >> 63) |
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flags |= N_FLAG; |
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if (mof)
|
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flags |= V_FLAG; |
| 452 |
|
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evaluate_flags_writeback(flags); |
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RETURN(); |
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} |
| 456 |
|
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void OPPROTO op_evaluate_flags_mcp(void) |
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{
|
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uint32_t src; |
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uint32_t dst; |
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uint32_t res; |
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uint32_t flags = 0;
|
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|
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src = env->cc_src; |
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dst = env->cc_dest; |
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res = env->cc_result; |
| 467 |
|
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if ((res & 0x80000000L) != 0L) |
| 469 |
{
|
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flags |= N_FLAG; |
| 471 |
if (((src & 0x80000000L) == 0L) |
| 472 |
&& ((dst & 0x80000000L) == 0L)) |
| 473 |
{
|
| 474 |
flags |= V_FLAG; |
| 475 |
} |
| 476 |
else if (((src & 0x80000000L) != 0L) && |
| 477 |
((dst & 0x80000000L) != 0L)) |
| 478 |
{
|
| 479 |
flags |= R_FLAG; |
| 480 |
} |
| 481 |
} |
| 482 |
else
|
| 483 |
{
|
| 484 |
if (res == 0L) |
| 485 |
flags |= Z_FLAG; |
| 486 |
if (((src & 0x80000000L) != 0L) |
| 487 |
&& ((dst & 0x80000000L) != 0L)) |
| 488 |
flags |= V_FLAG; |
| 489 |
if ((dst & 0x80000000L) != 0L |
| 490 |
|| (src & 0x80000000L) != 0L) |
| 491 |
flags |= R_FLAG; |
| 492 |
} |
| 493 |
|
| 494 |
evaluate_flags_writeback(flags); |
| 495 |
RETURN(); |
| 496 |
} |
| 497 |
|
| 498 |
void OPPROTO op_evaluate_flags_alu_4(void) |
| 499 |
{
|
| 500 |
uint32_t src; |
| 501 |
uint32_t dst; |
| 502 |
uint32_t res; |
| 503 |
uint32_t flags = 0;
|
| 504 |
|
| 505 |
src = env->cc_src; |
| 506 |
dst = env->cc_dest; |
| 507 |
res = env->cc_result; |
| 508 |
|
| 509 |
if ((res & 0x80000000L) != 0L) |
| 510 |
{
|
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flags |= N_FLAG; |
| 512 |
if (((src & 0x80000000L) == 0L) |
| 513 |
&& ((dst & 0x80000000L) == 0L)) |
| 514 |
{
|
| 515 |
flags |= V_FLAG; |
| 516 |
} |
| 517 |
else if (((src & 0x80000000L) != 0L) && |
| 518 |
((dst & 0x80000000L) != 0L)) |
| 519 |
{
|
| 520 |
flags |= C_FLAG; |
| 521 |
} |
| 522 |
} |
| 523 |
else
|
| 524 |
{
|
| 525 |
if (res == 0L) |
| 526 |
flags |= Z_FLAG; |
| 527 |
if (((src & 0x80000000L) != 0L) |
| 528 |
&& ((dst & 0x80000000L) != 0L)) |
| 529 |
flags |= V_FLAG; |
| 530 |
if ((dst & 0x80000000L) != 0L |
| 531 |
|| (src & 0x80000000L) != 0L) |
| 532 |
flags |= C_FLAG; |
| 533 |
} |
| 534 |
|
| 535 |
if (env->cc_op == CC_OP_SUB
|
| 536 |
|| env->cc_op == CC_OP_CMP) {
|
| 537 |
flags ^= C_FLAG; |
| 538 |
} |
| 539 |
evaluate_flags_writeback(flags); |
| 540 |
RETURN(); |
| 541 |
} |
| 542 |
|
| 543 |
void OPPROTO op_evaluate_flags_move_4 (void) |
| 544 |
{
|
| 545 |
uint32_t src; |
| 546 |
uint32_t res; |
| 547 |
uint32_t flags = 0;
|
| 548 |
|
| 549 |
src = env->cc_src; |
| 550 |
res = env->cc_result; |
| 551 |
|
| 552 |
if ((int32_t)res < 0) |
| 553 |
flags |= N_FLAG; |
| 554 |
else if (res == 0L) |
| 555 |
flags |= Z_FLAG; |
| 556 |
|
| 557 |
evaluate_flags_writeback(flags); |
| 558 |
RETURN(); |
| 559 |
} |
| 560 |
void OPPROTO op_evaluate_flags_move_2 (void) |
| 561 |
{
|
| 562 |
uint32_t src; |
| 563 |
uint32_t flags = 0;
|
| 564 |
uint16_t res; |
| 565 |
|
| 566 |
src = env->cc_src; |
| 567 |
res = env->cc_result; |
| 568 |
|
| 569 |
if ((int16_t)res < 0L) |
| 570 |
flags |= N_FLAG; |
| 571 |
else if (res == 0) |
| 572 |
flags |= Z_FLAG; |
| 573 |
|
| 574 |
evaluate_flags_writeback(flags); |
| 575 |
RETURN(); |
| 576 |
} |
| 577 |
|
| 578 |
/* TODO: This is expensive. We could split things up and only evaluate part of
|
| 579 |
CCR on a need to know basis. For now, we simply re-evaluate everything. */
|
| 580 |
void OPPROTO op_evaluate_flags (void) |
| 581 |
{
|
| 582 |
uint32_t src; |
| 583 |
uint32_t dst; |
| 584 |
uint32_t res; |
| 585 |
uint32_t flags = 0;
|
| 586 |
|
| 587 |
src = env->cc_src; |
| 588 |
dst = env->cc_dest; |
| 589 |
res = env->cc_result; |
| 590 |
|
| 591 |
|
| 592 |
/* Now, evaluate the flags. This stuff is based on
|
| 593 |
Per Zander's CRISv10 simulator. */
|
| 594 |
switch (env->cc_size)
|
| 595 |
{
|
| 596 |
case 1: |
| 597 |
if ((res & 0x80L) != 0L) |
| 598 |
{
|
| 599 |
flags |= N_FLAG; |
| 600 |
if (((src & 0x80L) == 0L) |
| 601 |
&& ((dst & 0x80L) == 0L)) |
| 602 |
{
|
| 603 |
flags |= V_FLAG; |
| 604 |
} |
| 605 |
else if (((src & 0x80L) != 0L) |
| 606 |
&& ((dst & 0x80L) != 0L)) |
| 607 |
{
|
| 608 |
flags |= C_FLAG; |
| 609 |
} |
| 610 |
} |
| 611 |
else
|
| 612 |
{
|
| 613 |
if ((res & 0xFFL) == 0L) |
| 614 |
{
|
| 615 |
flags |= Z_FLAG; |
| 616 |
} |
| 617 |
if (((src & 0x80L) != 0L) |
| 618 |
&& ((dst & 0x80L) != 0L)) |
| 619 |
{
|
| 620 |
flags |= V_FLAG; |
| 621 |
} |
| 622 |
if ((dst & 0x80L) != 0L |
| 623 |
|| (src & 0x80L) != 0L) |
| 624 |
{
|
| 625 |
flags |= C_FLAG; |
| 626 |
} |
| 627 |
} |
| 628 |
break;
|
| 629 |
case 2: |
| 630 |
if ((res & 0x8000L) != 0L) |
| 631 |
{
|
| 632 |
flags |= N_FLAG; |
| 633 |
if (((src & 0x8000L) == 0L) |
| 634 |
&& ((dst & 0x8000L) == 0L)) |
| 635 |
{
|
| 636 |
flags |= V_FLAG; |
| 637 |
} |
| 638 |
else if (((src & 0x8000L) != 0L) |
| 639 |
&& ((dst & 0x8000L) != 0L)) |
| 640 |
{
|
| 641 |
flags |= C_FLAG; |
| 642 |
} |
| 643 |
} |
| 644 |
else
|
| 645 |
{
|
| 646 |
if ((res & 0xFFFFL) == 0L) |
| 647 |
{
|
| 648 |
flags |= Z_FLAG; |
| 649 |
} |
| 650 |
if (((src & 0x8000L) != 0L) |
| 651 |
&& ((dst & 0x8000L) != 0L)) |
| 652 |
{
|
| 653 |
flags |= V_FLAG; |
| 654 |
} |
| 655 |
if ((dst & 0x8000L) != 0L |
| 656 |
|| (src & 0x8000L) != 0L) |
| 657 |
{
|
| 658 |
flags |= C_FLAG; |
| 659 |
} |
| 660 |
} |
| 661 |
break;
|
| 662 |
case 4: |
| 663 |
if ((res & 0x80000000L) != 0L) |
| 664 |
{
|
| 665 |
flags |= N_FLAG; |
| 666 |
if (((src & 0x80000000L) == 0L) |
| 667 |
&& ((dst & 0x80000000L) == 0L)) |
| 668 |
{
|
| 669 |
flags |= V_FLAG; |
| 670 |
} |
| 671 |
else if (((src & 0x80000000L) != 0L) && |
| 672 |
((dst & 0x80000000L) != 0L)) |
| 673 |
{
|
| 674 |
flags |= C_FLAG; |
| 675 |
} |
| 676 |
} |
| 677 |
else
|
| 678 |
{
|
| 679 |
if (res == 0L) |
| 680 |
flags |= Z_FLAG; |
| 681 |
if (((src & 0x80000000L) != 0L) |
| 682 |
&& ((dst & 0x80000000L) != 0L)) |
| 683 |
flags |= V_FLAG; |
| 684 |
if ((dst & 0x80000000L) != 0L |
| 685 |
|| (src & 0x80000000L) != 0L) |
| 686 |
flags |= C_FLAG; |
| 687 |
} |
| 688 |
break;
|
| 689 |
default:
|
| 690 |
break;
|
| 691 |
} |
| 692 |
|
| 693 |
if (env->cc_op == CC_OP_SUB
|
| 694 |
|| env->cc_op == CC_OP_CMP) {
|
| 695 |
flags ^= C_FLAG; |
| 696 |
} |
| 697 |
evaluate_flags_writeback(flags); |
| 698 |
RETURN(); |
| 699 |
} |
| 700 |
|
| 701 |
void OPPROTO op_extb_T0_T0 (void) |
| 702 |
{
|
| 703 |
T0 = ((int8_t)T0); |
| 704 |
RETURN(); |
| 705 |
} |
| 706 |
void OPPROTO op_extb_T1_T0 (void) |
| 707 |
{
|
| 708 |
T1 = ((int8_t)T0); |
| 709 |
RETURN(); |
| 710 |
} |
| 711 |
void OPPROTO op_extb_T1_T1 (void) |
| 712 |
{
|
| 713 |
T1 = ((int8_t)T1); |
| 714 |
RETURN(); |
| 715 |
} |
| 716 |
void OPPROTO op_zextb_T0_T0 (void) |
| 717 |
{
|
| 718 |
T0 = ((uint8_t)T0); |
| 719 |
RETURN(); |
| 720 |
} |
| 721 |
void OPPROTO op_zextb_T1_T0 (void) |
| 722 |
{
|
| 723 |
T1 = ((uint8_t)T0); |
| 724 |
RETURN(); |
| 725 |
} |
| 726 |
void OPPROTO op_zextb_T1_T1 (void) |
| 727 |
{
|
| 728 |
T1 = ((uint8_t)T1); |
| 729 |
RETURN(); |
| 730 |
} |
| 731 |
void OPPROTO op_extw_T0_T0 (void) |
| 732 |
{
|
| 733 |
T0 = ((int16_t)T0); |
| 734 |
RETURN(); |
| 735 |
} |
| 736 |
void OPPROTO op_extw_T1_T0 (void) |
| 737 |
{
|
| 738 |
T1 = ((int16_t)T0); |
| 739 |
RETURN(); |
| 740 |
} |
| 741 |
void OPPROTO op_extw_T1_T1 (void) |
| 742 |
{
|
| 743 |
T1 = ((int16_t)T1); |
| 744 |
RETURN(); |
| 745 |
} |
| 746 |
|
| 747 |
void OPPROTO op_zextw_T0_T0 (void) |
| 748 |
{
|
| 749 |
T0 = ((uint16_t)T0); |
| 750 |
RETURN(); |
| 751 |
} |
| 752 |
void OPPROTO op_zextw_T1_T0 (void) |
| 753 |
{
|
| 754 |
T1 = ((uint16_t)T0); |
| 755 |
RETURN(); |
| 756 |
} |
| 757 |
|
| 758 |
void OPPROTO op_zextw_T1_T1 (void) |
| 759 |
{
|
| 760 |
T1 = ((uint16_t)T1); |
| 761 |
RETURN(); |
| 762 |
} |
| 763 |
|
| 764 |
void OPPROTO op_movl_T0_im (void) |
| 765 |
{
|
| 766 |
T0 = PARAM1; |
| 767 |
RETURN(); |
| 768 |
} |
| 769 |
void OPPROTO op_movl_T1_im (void) |
| 770 |
{
|
| 771 |
T1 = PARAM1; |
| 772 |
RETURN(); |
| 773 |
} |
| 774 |
|
| 775 |
void OPPROTO op_addl_T0_im (void) |
| 776 |
{
|
| 777 |
T0 += PARAM1; |
| 778 |
RETURN(); |
| 779 |
} |
| 780 |
|
| 781 |
void OPPROTO op_addl_T1_im (void) |
| 782 |
{
|
| 783 |
T1 += PARAM1; |
| 784 |
RETURN(); |
| 785 |
|
| 786 |
} |
| 787 |
void OPPROTO op_subl_T0_im (void) |
| 788 |
{
|
| 789 |
T0 -= PARAM1; |
| 790 |
RETURN(); |
| 791 |
} |
| 792 |
|
| 793 |
void OPPROTO op_addxl_T0_C (void) |
| 794 |
{
|
| 795 |
if (env->pregs[SR_CCS] & X_FLAG)
|
| 796 |
T0 += !!(env->pregs[SR_CCS] & C_FLAG); |
| 797 |
RETURN(); |
| 798 |
} |
| 799 |
void OPPROTO op_subxl_T0_C (void) |
| 800 |
{
|
| 801 |
if (env->pregs[SR_CCS] & X_FLAG)
|
| 802 |
T0 -= !!(env->pregs[SR_CCS] & C_FLAG); |
| 803 |
RETURN(); |
| 804 |
} |
| 805 |
void OPPROTO op_addl_T0_C (void) |
| 806 |
{
|
| 807 |
T0 += !!(env->pregs[SR_CCS] & C_FLAG); |
| 808 |
RETURN(); |
| 809 |
} |
| 810 |
void OPPROTO op_addl_T0_R (void) |
| 811 |
{
|
| 812 |
T0 += !!(env->pregs[SR_CCS] & R_FLAG); |
| 813 |
RETURN(); |
| 814 |
} |
| 815 |
|
| 816 |
void OPPROTO op_clr_R (void) |
| 817 |
{
|
| 818 |
env->pregs[SR_CCS] &= ~R_FLAG; |
| 819 |
RETURN(); |
| 820 |
} |
| 821 |
|
| 822 |
|
| 823 |
void OPPROTO op_andl_T0_im (void) |
| 824 |
{
|
| 825 |
T0 &= PARAM1; |
| 826 |
RETURN(); |
| 827 |
} |
| 828 |
|
| 829 |
void OPPROTO op_andl_T1_im (void) |
| 830 |
{
|
| 831 |
T1 &= PARAM1; |
| 832 |
RETURN(); |
| 833 |
} |
| 834 |
|
| 835 |
void OPPROTO op_movl_T0_T1 (void) |
| 836 |
{
|
| 837 |
T0 = T1; |
| 838 |
RETURN(); |
| 839 |
} |
| 840 |
|
| 841 |
void OPPROTO op_swp_T0_T1 (void) |
| 842 |
{
|
| 843 |
T0 ^= T1; |
| 844 |
T1 ^= T0; |
| 845 |
T0 ^= T1; |
| 846 |
RETURN(); |
| 847 |
} |
| 848 |
|
| 849 |
void OPPROTO op_movl_T1_T0 (void) |
| 850 |
{
|
| 851 |
T1 = T0; |
| 852 |
RETURN(); |
| 853 |
} |
| 854 |
|
| 855 |
void OPPROTO op_movl_pc_T0 (void) |
| 856 |
{
|
| 857 |
env->pc = T0; |
| 858 |
RETURN(); |
| 859 |
} |
| 860 |
|
| 861 |
void OPPROTO op_movl_T0_0 (void) |
| 862 |
{
|
| 863 |
T0 = 0;
|
| 864 |
RETURN(); |
| 865 |
} |
| 866 |
|
| 867 |
void OPPROTO op_addl_T0_T1 (void) |
| 868 |
{
|
| 869 |
T0 += T1; |
| 870 |
RETURN(); |
| 871 |
} |
| 872 |
|
| 873 |
void OPPROTO op_subl_T0_T1 (void) |
| 874 |
{
|
| 875 |
T0 -= T1; |
| 876 |
RETURN(); |
| 877 |
} |
| 878 |
|
| 879 |
void OPPROTO op_absl_T1_T1 (void) |
| 880 |
{
|
| 881 |
int32_t st = T1; |
| 882 |
|
| 883 |
T1 = st < 0 ? -st : st;
|
| 884 |
RETURN(); |
| 885 |
} |
| 886 |
|
| 887 |
void OPPROTO op_muls_T0_T1 (void) |
| 888 |
{
|
| 889 |
int64_t tmp, t0 ,t1; |
| 890 |
|
| 891 |
/* cast into signed values to make GCC sign extend these babies. */
|
| 892 |
t0 = (int32_t)T0; |
| 893 |
t1 = (int32_t)T1; |
| 894 |
|
| 895 |
tmp = t0 * t1; |
| 896 |
T0 = tmp & 0xffffffff;
|
| 897 |
env->pregs[REG_MOF] = tmp >> 32;
|
| 898 |
RETURN(); |
| 899 |
} |
| 900 |
|
| 901 |
void OPPROTO op_mulu_T0_T1 (void) |
| 902 |
{
|
| 903 |
uint64_t tmp, t0 ,t1; |
| 904 |
t0 = T0; |
| 905 |
t1 = T1; |
| 906 |
|
| 907 |
tmp = t0 * t1; |
| 908 |
T0 = tmp & 0xffffffff;
|
| 909 |
env->pregs[REG_MOF] = tmp >> 32;
|
| 910 |
RETURN(); |
| 911 |
} |
| 912 |
|
| 913 |
void OPPROTO op_dstep_T0_T1 (void) |
| 914 |
{
|
| 915 |
T0 <<= 1;
|
| 916 |
if (T0 >= T1)
|
| 917 |
T0 -= T1; |
| 918 |
RETURN(); |
| 919 |
} |
| 920 |
|
| 921 |
void OPPROTO op_orl_T0_T1 (void) |
| 922 |
{
|
| 923 |
T0 |= T1; |
| 924 |
RETURN(); |
| 925 |
} |
| 926 |
|
| 927 |
void OPPROTO op_andl_T0_T1 (void) |
| 928 |
{
|
| 929 |
T0 &= T1; |
| 930 |
RETURN(); |
| 931 |
} |
| 932 |
|
| 933 |
void OPPROTO op_xorl_T0_T1 (void) |
| 934 |
{
|
| 935 |
T0 ^= T1; |
| 936 |
RETURN(); |
| 937 |
} |
| 938 |
|
| 939 |
void OPPROTO op_lsll_T0_T1 (void) |
| 940 |
{
|
| 941 |
int s = T1;
|
| 942 |
if (s > 31) |
| 943 |
T0 = 0;
|
| 944 |
else
|
| 945 |
T0 <<= s; |
| 946 |
RETURN(); |
| 947 |
} |
| 948 |
|
| 949 |
void OPPROTO op_lsll_T0_im (void) |
| 950 |
{
|
| 951 |
T0 <<= PARAM1; |
| 952 |
RETURN(); |
| 953 |
} |
| 954 |
|
| 955 |
void OPPROTO op_lsrl_T0_T1 (void) |
| 956 |
{
|
| 957 |
int s = T1;
|
| 958 |
if (s > 31) |
| 959 |
T0 = 0;
|
| 960 |
else
|
| 961 |
T0 >>= s; |
| 962 |
RETURN(); |
| 963 |
} |
| 964 |
|
| 965 |
/* Rely on GCC emitting an arithmetic shift for signed right shifts. */
|
| 966 |
void OPPROTO op_asrl_T0_T1 (void) |
| 967 |
{
|
| 968 |
int s = T1;
|
| 969 |
if (s > 31) |
| 970 |
T0 = T0 & 0x80000000 ? -1 : 0; |
| 971 |
else
|
| 972 |
T0 = (int32_t)T0 >> s; |
| 973 |
RETURN(); |
| 974 |
} |
| 975 |
|
| 976 |
void OPPROTO op_btst_T0_T1 (void) |
| 977 |
{
|
| 978 |
/* FIXME: clean this up. */
|
| 979 |
|
| 980 |
/* des ref:
|
| 981 |
The N flag is set according to the selected bit in the dest reg.
|
| 982 |
The Z flag is set if the selected bit and all bits to the right are
|
| 983 |
zero.
|
| 984 |
The destination reg is not affected.*/
|
| 985 |
unsigned int fz, sbit, bset, mask, masked_t0; |
| 986 |
|
| 987 |
sbit = T1 & 31;
|
| 988 |
bset = !!(T0 & (1 << sbit));
|
| 989 |
mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1; |
| 990 |
masked_t0 = T0 & mask; |
| 991 |
fz = !(masked_t0 | bset); |
| 992 |
/* Set the N and Z flags accordingly. */
|
| 993 |
T0 = (bset << 3) | (fz << 2); |
| 994 |
RETURN(); |
| 995 |
} |
| 996 |
|
| 997 |
void OPPROTO op_bound_T0_T1 (void) |
| 998 |
{
|
| 999 |
if (T0 > T1)
|
| 1000 |
T0 = T1; |
| 1001 |
RETURN(); |
| 1002 |
} |
| 1003 |
|
| 1004 |
void OPPROTO op_lz_T0_T1 (void) |
| 1005 |
{
|
| 1006 |
if (T1 == 0) |
| 1007 |
T0 = 32;
|
| 1008 |
else
|
| 1009 |
T0 = __builtin_clz(T1); |
| 1010 |
RETURN(); |
| 1011 |
} |
| 1012 |
|
| 1013 |
void OPPROTO op_negl_T0_T1 (void) |
| 1014 |
{
|
| 1015 |
T0 = -T1; |
| 1016 |
RETURN(); |
| 1017 |
} |
| 1018 |
|
| 1019 |
void OPPROTO op_negl_T1_T1 (void) |
| 1020 |
{
|
| 1021 |
T1 = -T1; |
| 1022 |
RETURN(); |
| 1023 |
} |
| 1024 |
|
| 1025 |
void OPPROTO op_not_T0_T0 (void) |
| 1026 |
{
|
| 1027 |
T0 = ~(T0); |
| 1028 |
RETURN(); |
| 1029 |
} |
| 1030 |
void OPPROTO op_not_T1_T1 (void) |
| 1031 |
{
|
| 1032 |
T1 = ~(T1); |
| 1033 |
RETURN(); |
| 1034 |
} |
| 1035 |
|
| 1036 |
void OPPROTO op_swapw_T0_T0 (void) |
| 1037 |
{
|
| 1038 |
T0 = (T0 << 16) | ((T0 >> 16)); |
| 1039 |
RETURN(); |
| 1040 |
} |
| 1041 |
|
| 1042 |
void OPPROTO op_swapb_T0_T0 (void) |
| 1043 |
{
|
| 1044 |
T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff); |
| 1045 |
RETURN(); |
| 1046 |
} |
| 1047 |
|
| 1048 |
void OPPROTO op_swapr_T0_T0 (void) |
| 1049 |
{
|
| 1050 |
T0 = (((T0 << 7) & 0x80808080) | |
| 1051 |
((T0 << 5) & 0x40404040) | |
| 1052 |
((T0 << 3) & 0x20202020) | |
| 1053 |
((T0 << 1) & 0x10101010) | |
| 1054 |
((T0 >> 1) & 0x08080808) | |
| 1055 |
((T0 >> 3) & 0x04040404) | |
| 1056 |
((T0 >> 5) & 0x02020202) | |
| 1057 |
((T0 >> 7) & 0x01010101)); |
| 1058 |
RETURN(); |
| 1059 |
} |
| 1060 |
|
| 1061 |
void OPPROTO op_tst_cc_eq (void) { |
| 1062 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1063 |
int z_set;
|
| 1064 |
|
| 1065 |
z_set = !!(flags & Z_FLAG); |
| 1066 |
T0 = z_set; |
| 1067 |
RETURN(); |
| 1068 |
} |
| 1069 |
|
| 1070 |
void OPPROTO op_tst_cc_eq_fast (void) { |
| 1071 |
T0 = !(env->cc_result); |
| 1072 |
RETURN(); |
| 1073 |
} |
| 1074 |
|
| 1075 |
void OPPROTO op_tst_cc_ne (void) { |
| 1076 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1077 |
int z_set;
|
| 1078 |
|
| 1079 |
z_set = !!(flags & Z_FLAG); |
| 1080 |
T0 = !z_set; |
| 1081 |
RETURN(); |
| 1082 |
} |
| 1083 |
void OPPROTO op_tst_cc_ne_fast (void) { |
| 1084 |
T0 = !!(env->cc_result); |
| 1085 |
RETURN(); |
| 1086 |
} |
| 1087 |
|
| 1088 |
void OPPROTO op_tst_cc_cc (void) { |
| 1089 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1090 |
int c_set;
|
| 1091 |
|
| 1092 |
c_set = !!(flags & C_FLAG); |
| 1093 |
T0 = !c_set; |
| 1094 |
RETURN(); |
| 1095 |
} |
| 1096 |
void OPPROTO op_tst_cc_cs (void) { |
| 1097 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1098 |
int c_set;
|
| 1099 |
|
| 1100 |
c_set = !!(flags & C_FLAG); |
| 1101 |
T0 = c_set; |
| 1102 |
RETURN(); |
| 1103 |
} |
| 1104 |
|
| 1105 |
void OPPROTO op_tst_cc_vc (void) { |
| 1106 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1107 |
int v_set;
|
| 1108 |
|
| 1109 |
v_set = !!(flags & V_FLAG); |
| 1110 |
T0 = !v_set; |
| 1111 |
RETURN(); |
| 1112 |
} |
| 1113 |
void OPPROTO op_tst_cc_vs (void) { |
| 1114 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1115 |
int v_set;
|
| 1116 |
|
| 1117 |
v_set = !!(flags & V_FLAG); |
| 1118 |
T0 = v_set; |
| 1119 |
RETURN(); |
| 1120 |
} |
| 1121 |
void OPPROTO op_tst_cc_pl (void) { |
| 1122 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1123 |
int n_set;
|
| 1124 |
|
| 1125 |
n_set = !!(flags & N_FLAG); |
| 1126 |
T0 = !n_set; |
| 1127 |
RETURN(); |
| 1128 |
} |
| 1129 |
void OPPROTO op_tst_cc_pl_fast (void) { |
| 1130 |
T0 = ((int32_t)env->cc_result) >= 0;
|
| 1131 |
RETURN(); |
| 1132 |
} |
| 1133 |
|
| 1134 |
void OPPROTO op_tst_cc_mi (void) { |
| 1135 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1136 |
int n_set;
|
| 1137 |
|
| 1138 |
n_set = !!(flags & N_FLAG); |
| 1139 |
T0 = n_set; |
| 1140 |
RETURN(); |
| 1141 |
} |
| 1142 |
void OPPROTO op_tst_cc_mi_fast (void) { |
| 1143 |
T0 = ((int32_t)env->cc_result) < 0;
|
| 1144 |
RETURN(); |
| 1145 |
} |
| 1146 |
|
| 1147 |
void OPPROTO op_tst_cc_ls (void) { |
| 1148 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1149 |
int c_set;
|
| 1150 |
int z_set;
|
| 1151 |
|
| 1152 |
c_set = !!(flags & C_FLAG); |
| 1153 |
z_set = !!(flags & Z_FLAG); |
| 1154 |
T0 = c_set || z_set; |
| 1155 |
RETURN(); |
| 1156 |
} |
| 1157 |
void OPPROTO op_tst_cc_hi (void) { |
| 1158 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1159 |
int z_set;
|
| 1160 |
int c_set;
|
| 1161 |
|
| 1162 |
z_set = !!(flags & Z_FLAG); |
| 1163 |
c_set = !!(flags & C_FLAG); |
| 1164 |
T0 = !c_set && !z_set; |
| 1165 |
RETURN(); |
| 1166 |
|
| 1167 |
} |
| 1168 |
|
| 1169 |
void OPPROTO op_tst_cc_ge (void) { |
| 1170 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1171 |
int n_set;
|
| 1172 |
int v_set;
|
| 1173 |
|
| 1174 |
n_set = !!(flags & N_FLAG); |
| 1175 |
v_set = !!(flags & V_FLAG); |
| 1176 |
T0 = (n_set && v_set) || (!n_set && !v_set); |
| 1177 |
RETURN(); |
| 1178 |
} |
| 1179 |
|
| 1180 |
void OPPROTO op_tst_cc_ge_fast (void) { |
| 1181 |
T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest); |
| 1182 |
RETURN(); |
| 1183 |
} |
| 1184 |
|
| 1185 |
void OPPROTO op_tst_cc_lt (void) { |
| 1186 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1187 |
int n_set;
|
| 1188 |
int v_set;
|
| 1189 |
|
| 1190 |
n_set = !!(flags & N_FLAG); |
| 1191 |
v_set = !!(flags & V_FLAG); |
| 1192 |
T0 = (n_set && !v_set) || (!n_set && v_set); |
| 1193 |
RETURN(); |
| 1194 |
} |
| 1195 |
|
| 1196 |
void OPPROTO op_tst_cc_gt (void) { |
| 1197 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1198 |
int n_set;
|
| 1199 |
int v_set;
|
| 1200 |
int z_set;
|
| 1201 |
|
| 1202 |
n_set = !!(flags & N_FLAG); |
| 1203 |
v_set = !!(flags & V_FLAG); |
| 1204 |
z_set = !!(flags & Z_FLAG); |
| 1205 |
T0 = (n_set && v_set && !z_set) |
| 1206 |
|| (!n_set && !v_set && !z_set); |
| 1207 |
RETURN(); |
| 1208 |
} |
| 1209 |
|
| 1210 |
void OPPROTO op_tst_cc_le (void) { |
| 1211 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1212 |
int n_set;
|
| 1213 |
int v_set;
|
| 1214 |
int z_set;
|
| 1215 |
|
| 1216 |
n_set = !!(flags & N_FLAG); |
| 1217 |
v_set = !!(flags & V_FLAG); |
| 1218 |
z_set = !!(flags & Z_FLAG); |
| 1219 |
T0 = z_set || (n_set && !v_set) || (!n_set && v_set); |
| 1220 |
RETURN(); |
| 1221 |
} |
| 1222 |
|
| 1223 |
void OPPROTO op_tst_cc_p (void) { |
| 1224 |
uint32_t flags = env->pregs[SR_CCS]; |
| 1225 |
int p_set;
|
| 1226 |
|
| 1227 |
p_set = !!(flags & P_FLAG); |
| 1228 |
T0 = p_set; |
| 1229 |
RETURN(); |
| 1230 |
} |
| 1231 |
|
| 1232 |
/* Evaluate the if the branch should be taken or not. Needs to be done in
|
| 1233 |
the original sequence. The acutal branch is rescheduled to right after the
|
| 1234 |
delay-slot. */
|
| 1235 |
void OPPROTO op_evaluate_bcc (void) |
| 1236 |
{
|
| 1237 |
env->btaken = T0; |
| 1238 |
RETURN(); |
| 1239 |
} |
| 1240 |
|
| 1241 |
/* this one is used on every alu op, optimize it!. */
|
| 1242 |
void OPPROTO op_goto_if_not_x (void) |
| 1243 |
{
|
| 1244 |
if (env->pregs[SR_CCS] & X_FLAG)
|
| 1245 |
GOTO_LABEL_PARAM(1);
|
| 1246 |
RETURN(); |
| 1247 |
} |
| 1248 |
|
| 1249 |
void OPPROTO op_cc_jmp (void) |
| 1250 |
{
|
| 1251 |
if (env->btaken)
|
| 1252 |
env->pc = PARAM1; |
| 1253 |
else
|
| 1254 |
env->pc = PARAM2; |
| 1255 |
RETURN(); |
| 1256 |
} |
| 1257 |
|
| 1258 |
void OPPROTO op_cc_ngoto (void) |
| 1259 |
{
|
| 1260 |
if (!env->btaken)
|
| 1261 |
GOTO_LABEL_PARAM(1);
|
| 1262 |
RETURN(); |
| 1263 |
} |
| 1264 |
|
| 1265 |
void OPPROTO op_movl_btarget_T0 (void) |
| 1266 |
{
|
| 1267 |
env->btarget = T0; |
| 1268 |
RETURN(); |
| 1269 |
} |
| 1270 |
|
| 1271 |
void OPPROTO op_jmp (void) |
| 1272 |
{
|
| 1273 |
env->pc = env->btarget; |
| 1274 |
RETURN(); |
| 1275 |
} |
| 1276 |
|
| 1277 |
/* Load and store */
|
| 1278 |
#define MEMSUFFIX _raw
|
| 1279 |
#include "op_mem.c" |
| 1280 |
#undef MEMSUFFIX
|
| 1281 |
#if !defined(CONFIG_USER_ONLY)
|
| 1282 |
#define MEMSUFFIX _user
|
| 1283 |
#include "op_mem.c" |
| 1284 |
#undef MEMSUFFIX
|
| 1285 |
|
| 1286 |
#define MEMSUFFIX _kernel
|
| 1287 |
#include "op_mem.c" |
| 1288 |
#undef MEMSUFFIX
|
| 1289 |
#endif
|