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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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#include "host-utils.h" |
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|
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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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|
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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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|
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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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|
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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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|
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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_break_im(void) |
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{
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env->trap_vector = 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[PR_CCS]; |
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ccs = (ccs & 0xc0000000) | ((ccs << 12) >> 2); |
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env->pregs[PR_CCS] = ccs; |
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RETURN(); |
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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[PR_CCS]; |
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ccs = (ccs & 0xc0000000) | ((ccs & 0x0fffffff) >> 10); |
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env->pregs[PR_CCS] = ccs; |
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RETURN(); |
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} |
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void OPPROTO op_setf (void) |
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{
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env->pregs[PR_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[PR_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[PR_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[PR_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[PR_SRS]][PARAM1] = T0; |
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RETURN(); |
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} |
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void OPPROTO op_movl_tlb_hi_T0 (void) |
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{
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uint32_t srs; |
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srs = env->pregs[PR_SRS]; |
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if (srs == 1 || srs == 2) |
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{
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/* Writes to tlb-hi write to mm_cause as a side effect. */
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env->sregs[SFR_RW_MM_TLB_HI] = T0; |
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env->sregs[SFR_R_MM_CAUSE] = T0; |
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} |
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RETURN(); |
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} |
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|
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void OPPROTO op_movl_tlb_lo_T0 (void) |
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{
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uint32_t srs; |
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srs = env->pregs[PR_SRS]; |
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if (srs == 1 || srs == 2) |
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{
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uint32_t set; |
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uint32_t 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 &= 15;
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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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/* Writes are done via r_mm_cause. */
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hi = env->sregs[SFR_R_MM_CAUSE]; |
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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[PR_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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|
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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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|
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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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|
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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[PR_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[PR_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[PR_CCS] &= ~(env->cc_mask | X_FLAG); |
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flags &= env->cc_mask; |
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env->pregs[PR_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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|
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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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|
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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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} |
| 423 |
|
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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; |
| 437 |
|
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|
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/* cast into signed values to make GCC sign extend. */
|
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t0 = src; |
| 441 |
t1 = dst; |
| 442 |
|
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tmp = t0 * t1; |
| 444 |
mof = tmp >> 32;
|
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if (tmp == 0) |
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flags |= Z_FLAG; |
| 447 |
else if (tmp >> 63) |
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flags |= N_FLAG; |
| 449 |
if (mof)
|
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flags |= V_FLAG; |
| 451 |
|
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evaluate_flags_writeback(flags); |
| 453 |
RETURN(); |
| 454 |
} |
| 455 |
|
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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; |
| 460 |
uint32_t res; |
| 461 |
uint32_t flags = 0;
|
| 462 |
|
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src = env->cc_src; |
| 464 |
dst = env->cc_dest; |
| 465 |
res = env->cc_result; |
| 466 |
|
| 467 |
if ((res & 0x80000000L) != 0L) |
| 468 |
{
|
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flags |= N_FLAG; |
| 470 |
if (((src & 0x80000000L) == 0L) |
| 471 |
&& ((dst & 0x80000000L) == 0L)) |
| 472 |
{
|
| 473 |
flags |= V_FLAG; |
| 474 |
} |
| 475 |
else if (((src & 0x80000000L) != 0L) && |
| 476 |
((dst & 0x80000000L) != 0L)) |
| 477 |
{
|
| 478 |
flags |= R_FLAG; |
| 479 |
} |
| 480 |
} |
| 481 |
else
|
| 482 |
{
|
| 483 |
if (res == 0L) |
| 484 |
flags |= Z_FLAG; |
| 485 |
if (((src & 0x80000000L) != 0L) |
| 486 |
&& ((dst & 0x80000000L) != 0L)) |
| 487 |
flags |= V_FLAG; |
| 488 |
if ((dst & 0x80000000L) != 0L |
| 489 |
|| (src & 0x80000000L) != 0L) |
| 490 |
flags |= R_FLAG; |
| 491 |
} |
| 492 |
|
| 493 |
evaluate_flags_writeback(flags); |
| 494 |
RETURN(); |
| 495 |
} |
| 496 |
|
| 497 |
void OPPROTO op_evaluate_flags_alu_4(void) |
| 498 |
{
|
| 499 |
uint32_t src; |
| 500 |
uint32_t dst; |
| 501 |
uint32_t res; |
| 502 |
uint32_t flags = 0;
|
| 503 |
|
| 504 |
src = env->cc_src; |
| 505 |
dst = env->cc_dest; |
| 506 |
res = env->cc_result; |
| 507 |
|
| 508 |
if ((res & 0x80000000L) != 0L) |
| 509 |
{
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flags |= N_FLAG; |
| 511 |
if (((src & 0x80000000L) == 0L) |
| 512 |
&& ((dst & 0x80000000L) == 0L)) |
| 513 |
{
|
| 514 |
flags |= V_FLAG; |
| 515 |
} |
| 516 |
else if (((src & 0x80000000L) != 0L) && |
| 517 |
((dst & 0x80000000L) != 0L)) |
| 518 |
{
|
| 519 |
flags |= C_FLAG; |
| 520 |
} |
| 521 |
} |
| 522 |
else
|
| 523 |
{
|
| 524 |
if (res == 0L) |
| 525 |
flags |= Z_FLAG; |
| 526 |
if (((src & 0x80000000L) != 0L) |
| 527 |
&& ((dst & 0x80000000L) != 0L)) |
| 528 |
flags |= V_FLAG; |
| 529 |
if ((dst & 0x80000000L) != 0L |
| 530 |
|| (src & 0x80000000L) != 0L) |
| 531 |
flags |= C_FLAG; |
| 532 |
} |
| 533 |
|
| 534 |
if (env->cc_op == CC_OP_SUB
|
| 535 |
|| env->cc_op == CC_OP_CMP) {
|
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flags ^= C_FLAG; |
| 537 |
} |
| 538 |
evaluate_flags_writeback(flags); |
| 539 |
RETURN(); |
| 540 |
} |
| 541 |
|
| 542 |
void OPPROTO op_evaluate_flags_move_4 (void) |
| 543 |
{
|
| 544 |
uint32_t src; |
| 545 |
uint32_t res; |
| 546 |
uint32_t flags = 0;
|
| 547 |
|
| 548 |
src = env->cc_src; |
| 549 |
res = env->cc_result; |
| 550 |
|
| 551 |
if ((int32_t)res < 0) |
| 552 |
flags |= N_FLAG; |
| 553 |
else if (res == 0L) |
| 554 |
flags |= Z_FLAG; |
| 555 |
|
| 556 |
evaluate_flags_writeback(flags); |
| 557 |
RETURN(); |
| 558 |
} |
| 559 |
void OPPROTO op_evaluate_flags_move_2 (void) |
| 560 |
{
|
| 561 |
uint32_t src; |
| 562 |
uint32_t flags = 0;
|
| 563 |
uint16_t res; |
| 564 |
|
| 565 |
src = env->cc_src; |
| 566 |
res = env->cc_result; |
| 567 |
|
| 568 |
if ((int16_t)res < 0L) |
| 569 |
flags |= N_FLAG; |
| 570 |
else if (res == 0) |
| 571 |
flags |= Z_FLAG; |
| 572 |
|
| 573 |
evaluate_flags_writeback(flags); |
| 574 |
RETURN(); |
| 575 |
} |
| 576 |
|
| 577 |
/* TODO: This is expensive. We could split things up and only evaluate part of
|
| 578 |
CCR on a need to know basis. For now, we simply re-evaluate everything. */
|
| 579 |
void OPPROTO op_evaluate_flags (void) |
| 580 |
{
|
| 581 |
uint32_t src; |
| 582 |
uint32_t dst; |
| 583 |
uint32_t res; |
| 584 |
uint32_t flags = 0;
|
| 585 |
|
| 586 |
src = env->cc_src; |
| 587 |
dst = env->cc_dest; |
| 588 |
res = env->cc_result; |
| 589 |
|
| 590 |
|
| 591 |
/* Now, evaluate the flags. This stuff is based on
|
| 592 |
Per Zander's CRISv10 simulator. */
|
| 593 |
switch (env->cc_size)
|
| 594 |
{
|
| 595 |
case 1: |
| 596 |
if ((res & 0x80L) != 0L) |
| 597 |
{
|
| 598 |
flags |= N_FLAG; |
| 599 |
if (((src & 0x80L) == 0L) |
| 600 |
&& ((dst & 0x80L) == 0L)) |
| 601 |
{
|
| 602 |
flags |= V_FLAG; |
| 603 |
} |
| 604 |
else if (((src & 0x80L) != 0L) |
| 605 |
&& ((dst & 0x80L) != 0L)) |
| 606 |
{
|
| 607 |
flags |= C_FLAG; |
| 608 |
} |
| 609 |
} |
| 610 |
else
|
| 611 |
{
|
| 612 |
if ((res & 0xFFL) == 0L) |
| 613 |
{
|
| 614 |
flags |= Z_FLAG; |
| 615 |
} |
| 616 |
if (((src & 0x80L) != 0L) |
| 617 |
&& ((dst & 0x80L) != 0L)) |
| 618 |
{
|
| 619 |
flags |= V_FLAG; |
| 620 |
} |
| 621 |
if ((dst & 0x80L) != 0L |
| 622 |
|| (src & 0x80L) != 0L) |
| 623 |
{
|
| 624 |
flags |= C_FLAG; |
| 625 |
} |
| 626 |
} |
| 627 |
break;
|
| 628 |
case 2: |
| 629 |
if ((res & 0x8000L) != 0L) |
| 630 |
{
|
| 631 |
flags |= N_FLAG; |
| 632 |
if (((src & 0x8000L) == 0L) |
| 633 |
&& ((dst & 0x8000L) == 0L)) |
| 634 |
{
|
| 635 |
flags |= V_FLAG; |
| 636 |
} |
| 637 |
else if (((src & 0x8000L) != 0L) |
| 638 |
&& ((dst & 0x8000L) != 0L)) |
| 639 |
{
|
| 640 |
flags |= C_FLAG; |
| 641 |
} |
| 642 |
} |
| 643 |
else
|
| 644 |
{
|
| 645 |
if ((res & 0xFFFFL) == 0L) |
| 646 |
{
|
| 647 |
flags |= Z_FLAG; |
| 648 |
} |
| 649 |
if (((src & 0x8000L) != 0L) |
| 650 |
&& ((dst & 0x8000L) != 0L)) |
| 651 |
{
|
| 652 |
flags |= V_FLAG; |
| 653 |
} |
| 654 |
if ((dst & 0x8000L) != 0L |
| 655 |
|| (src & 0x8000L) != 0L) |
| 656 |
{
|
| 657 |
flags |= C_FLAG; |
| 658 |
} |
| 659 |
} |
| 660 |
break;
|
| 661 |
case 4: |
| 662 |
if ((res & 0x80000000L) != 0L) |
| 663 |
{
|
| 664 |
flags |= N_FLAG; |
| 665 |
if (((src & 0x80000000L) == 0L) |
| 666 |
&& ((dst & 0x80000000L) == 0L)) |
| 667 |
{
|
| 668 |
flags |= V_FLAG; |
| 669 |
} |
| 670 |
else if (((src & 0x80000000L) != 0L) && |
| 671 |
((dst & 0x80000000L) != 0L)) |
| 672 |
{
|
| 673 |
flags |= C_FLAG; |
| 674 |
} |
| 675 |
} |
| 676 |
else
|
| 677 |
{
|
| 678 |
if (res == 0L) |
| 679 |
flags |= Z_FLAG; |
| 680 |
if (((src & 0x80000000L) != 0L) |
| 681 |
&& ((dst & 0x80000000L) != 0L)) |
| 682 |
flags |= V_FLAG; |
| 683 |
if ((dst & 0x80000000L) != 0L |
| 684 |
|| (src & 0x80000000L) != 0L) |
| 685 |
flags |= C_FLAG; |
| 686 |
} |
| 687 |
break;
|
| 688 |
default:
|
| 689 |
break;
|
| 690 |
} |
| 691 |
|
| 692 |
if (env->cc_op == CC_OP_SUB
|
| 693 |
|| env->cc_op == CC_OP_CMP) {
|
| 694 |
flags ^= C_FLAG; |
| 695 |
} |
| 696 |
evaluate_flags_writeback(flags); |
| 697 |
RETURN(); |
| 698 |
} |
| 699 |
|
| 700 |
void OPPROTO op_extb_T0_T0 (void) |
| 701 |
{
|
| 702 |
T0 = ((int8_t)T0); |
| 703 |
RETURN(); |
| 704 |
} |
| 705 |
void OPPROTO op_extb_T1_T0 (void) |
| 706 |
{
|
| 707 |
T1 = ((int8_t)T0); |
| 708 |
RETURN(); |
| 709 |
} |
| 710 |
void OPPROTO op_extb_T1_T1 (void) |
| 711 |
{
|
| 712 |
T1 = ((int8_t)T1); |
| 713 |
RETURN(); |
| 714 |
} |
| 715 |
void OPPROTO op_zextb_T0_T0 (void) |
| 716 |
{
|
| 717 |
T0 = ((uint8_t)T0); |
| 718 |
RETURN(); |
| 719 |
} |
| 720 |
void OPPROTO op_zextb_T1_T0 (void) |
| 721 |
{
|
| 722 |
T1 = ((uint8_t)T0); |
| 723 |
RETURN(); |
| 724 |
} |
| 725 |
void OPPROTO op_zextb_T1_T1 (void) |
| 726 |
{
|
| 727 |
T1 = ((uint8_t)T1); |
| 728 |
RETURN(); |
| 729 |
} |
| 730 |
void OPPROTO op_extw_T0_T0 (void) |
| 731 |
{
|
| 732 |
T0 = ((int16_t)T0); |
| 733 |
RETURN(); |
| 734 |
} |
| 735 |
void OPPROTO op_extw_T1_T0 (void) |
| 736 |
{
|
| 737 |
T1 = ((int16_t)T0); |
| 738 |
RETURN(); |
| 739 |
} |
| 740 |
void OPPROTO op_extw_T1_T1 (void) |
| 741 |
{
|
| 742 |
T1 = ((int16_t)T1); |
| 743 |
RETURN(); |
| 744 |
} |
| 745 |
|
| 746 |
void OPPROTO op_zextw_T0_T0 (void) |
| 747 |
{
|
| 748 |
T0 = ((uint16_t)T0); |
| 749 |
RETURN(); |
| 750 |
} |
| 751 |
void OPPROTO op_zextw_T1_T0 (void) |
| 752 |
{
|
| 753 |
T1 = ((uint16_t)T0); |
| 754 |
RETURN(); |
| 755 |
} |
| 756 |
|
| 757 |
void OPPROTO op_zextw_T1_T1 (void) |
| 758 |
{
|
| 759 |
T1 = ((uint16_t)T1); |
| 760 |
RETURN(); |
| 761 |
} |
| 762 |
|
| 763 |
void OPPROTO op_movl_T0_im (void) |
| 764 |
{
|
| 765 |
T0 = PARAM1; |
| 766 |
RETURN(); |
| 767 |
} |
| 768 |
void OPPROTO op_movl_T1_im (void) |
| 769 |
{
|
| 770 |
T1 = PARAM1; |
| 771 |
RETURN(); |
| 772 |
} |
| 773 |
|
| 774 |
void OPPROTO op_addl_T0_im (void) |
| 775 |
{
|
| 776 |
T0 += PARAM1; |
| 777 |
RETURN(); |
| 778 |
} |
| 779 |
|
| 780 |
void OPPROTO op_addl_T1_im (void) |
| 781 |
{
|
| 782 |
T1 += PARAM1; |
| 783 |
RETURN(); |
| 784 |
|
| 785 |
} |
| 786 |
void OPPROTO op_subl_T0_im (void) |
| 787 |
{
|
| 788 |
T0 -= PARAM1; |
| 789 |
RETURN(); |
| 790 |
} |
| 791 |
|
| 792 |
void OPPROTO op_addxl_T0_C (void) |
| 793 |
{
|
| 794 |
if (env->pregs[PR_CCS] & X_FLAG)
|
| 795 |
T0 += !!(env->pregs[PR_CCS] & C_FLAG); |
| 796 |
RETURN(); |
| 797 |
} |
| 798 |
void OPPROTO op_subxl_T0_C (void) |
| 799 |
{
|
| 800 |
if (env->pregs[PR_CCS] & X_FLAG)
|
| 801 |
T0 -= !!(env->pregs[PR_CCS] & C_FLAG); |
| 802 |
RETURN(); |
| 803 |
} |
| 804 |
void OPPROTO op_addl_T0_C (void) |
| 805 |
{
|
| 806 |
T0 += !!(env->pregs[PR_CCS] & C_FLAG); |
| 807 |
RETURN(); |
| 808 |
} |
| 809 |
void OPPROTO op_addl_T0_R (void) |
| 810 |
{
|
| 811 |
T0 += !!(env->pregs[PR_CCS] & R_FLAG); |
| 812 |
RETURN(); |
| 813 |
} |
| 814 |
|
| 815 |
void OPPROTO op_clr_R (void) |
| 816 |
{
|
| 817 |
env->pregs[PR_CCS] &= ~R_FLAG; |
| 818 |
RETURN(); |
| 819 |
} |
| 820 |
|
| 821 |
|
| 822 |
void OPPROTO op_andl_T0_im (void) |
| 823 |
{
|
| 824 |
T0 &= PARAM1; |
| 825 |
RETURN(); |
| 826 |
} |
| 827 |
|
| 828 |
void OPPROTO op_andl_T1_im (void) |
| 829 |
{
|
| 830 |
T1 &= PARAM1; |
| 831 |
RETURN(); |
| 832 |
} |
| 833 |
|
| 834 |
void OPPROTO op_movl_T0_T1 (void) |
| 835 |
{
|
| 836 |
T0 = T1; |
| 837 |
RETURN(); |
| 838 |
} |
| 839 |
|
| 840 |
void OPPROTO op_swp_T0_T1 (void) |
| 841 |
{
|
| 842 |
T0 ^= T1; |
| 843 |
T1 ^= T0; |
| 844 |
T0 ^= T1; |
| 845 |
RETURN(); |
| 846 |
} |
| 847 |
|
| 848 |
void OPPROTO op_movl_T1_T0 (void) |
| 849 |
{
|
| 850 |
T1 = T0; |
| 851 |
RETURN(); |
| 852 |
} |
| 853 |
|
| 854 |
void OPPROTO op_movl_pc_T0 (void) |
| 855 |
{
|
| 856 |
env->pc = T0; |
| 857 |
RETURN(); |
| 858 |
} |
| 859 |
|
| 860 |
void OPPROTO op_movl_T0_0 (void) |
| 861 |
{
|
| 862 |
T0 = 0;
|
| 863 |
RETURN(); |
| 864 |
} |
| 865 |
|
| 866 |
void OPPROTO op_addl_T0_T1 (void) |
| 867 |
{
|
| 868 |
T0 += T1; |
| 869 |
RETURN(); |
| 870 |
} |
| 871 |
|
| 872 |
void OPPROTO op_subl_T0_T1 (void) |
| 873 |
{
|
| 874 |
T0 -= T1; |
| 875 |
RETURN(); |
| 876 |
} |
| 877 |
|
| 878 |
void OPPROTO op_absl_T1_T1 (void) |
| 879 |
{
|
| 880 |
int32_t st = T1; |
| 881 |
|
| 882 |
T1 = st < 0 ? -st : st;
|
| 883 |
RETURN(); |
| 884 |
} |
| 885 |
|
| 886 |
void OPPROTO op_muls_T0_T1 (void) |
| 887 |
{
|
| 888 |
int64_t tmp, t0 ,t1; |
| 889 |
|
| 890 |
/* cast into signed values to make GCC sign extend these babies. */
|
| 891 |
t0 = (int32_t)T0; |
| 892 |
t1 = (int32_t)T1; |
| 893 |
|
| 894 |
tmp = t0 * t1; |
| 895 |
T0 = tmp & 0xffffffff;
|
| 896 |
env->pregs[PR_MOF] = tmp >> 32;
|
| 897 |
RETURN(); |
| 898 |
} |
| 899 |
|
| 900 |
void OPPROTO op_mulu_T0_T1 (void) |
| 901 |
{
|
| 902 |
uint64_t tmp, t0 ,t1; |
| 903 |
t0 = T0; |
| 904 |
t1 = T1; |
| 905 |
|
| 906 |
tmp = t0 * t1; |
| 907 |
T0 = tmp & 0xffffffff;
|
| 908 |
env->pregs[PR_MOF] = tmp >> 32;
|
| 909 |
RETURN(); |
| 910 |
} |
| 911 |
|
| 912 |
void OPPROTO op_dstep_T0_T1 (void) |
| 913 |
{
|
| 914 |
T0 <<= 1;
|
| 915 |
if (T0 >= T1)
|
| 916 |
T0 -= T1; |
| 917 |
RETURN(); |
| 918 |
} |
| 919 |
|
| 920 |
void OPPROTO op_orl_T0_T1 (void) |
| 921 |
{
|
| 922 |
T0 |= T1; |
| 923 |
RETURN(); |
| 924 |
} |
| 925 |
|
| 926 |
void OPPROTO op_andl_T0_T1 (void) |
| 927 |
{
|
| 928 |
T0 &= T1; |
| 929 |
RETURN(); |
| 930 |
} |
| 931 |
|
| 932 |
void OPPROTO op_xorl_T0_T1 (void) |
| 933 |
{
|
| 934 |
T0 ^= T1; |
| 935 |
RETURN(); |
| 936 |
} |
| 937 |
|
| 938 |
void OPPROTO op_lsll_T0_T1 (void) |
| 939 |
{
|
| 940 |
int s = T1;
|
| 941 |
if (s > 31) |
| 942 |
T0 = 0;
|
| 943 |
else
|
| 944 |
T0 <<= s; |
| 945 |
RETURN(); |
| 946 |
} |
| 947 |
|
| 948 |
void OPPROTO op_lsll_T0_im (void) |
| 949 |
{
|
| 950 |
T0 <<= PARAM1; |
| 951 |
RETURN(); |
| 952 |
} |
| 953 |
|
| 954 |
void OPPROTO op_lsrl_T0_T1 (void) |
| 955 |
{
|
| 956 |
int s = T1;
|
| 957 |
if (s > 31) |
| 958 |
T0 = 0;
|
| 959 |
else
|
| 960 |
T0 >>= s; |
| 961 |
RETURN(); |
| 962 |
} |
| 963 |
|
| 964 |
/* Rely on GCC emitting an arithmetic shift for signed right shifts. */
|
| 965 |
void OPPROTO op_asrl_T0_T1 (void) |
| 966 |
{
|
| 967 |
int s = T1;
|
| 968 |
if (s > 31) |
| 969 |
T0 = T0 & 0x80000000 ? -1 : 0; |
| 970 |
else
|
| 971 |
T0 = (int32_t)T0 >> s; |
| 972 |
RETURN(); |
| 973 |
} |
| 974 |
|
| 975 |
void OPPROTO op_btst_T0_T1 (void) |
| 976 |
{
|
| 977 |
/* FIXME: clean this up. */
|
| 978 |
|
| 979 |
/* des ref:
|
| 980 |
The N flag is set according to the selected bit in the dest reg.
|
| 981 |
The Z flag is set if the selected bit and all bits to the right are
|
| 982 |
zero.
|
| 983 |
The X flag is cleared.
|
| 984 |
Other flags are left untouched.
|
| 985 |
The destination reg is not affected.*/
|
| 986 |
unsigned int fz, sbit, bset, mask, masked_t0; |
| 987 |
|
| 988 |
sbit = T1 & 31;
|
| 989 |
bset = !!(T0 & (1 << sbit));
|
| 990 |
mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1; |
| 991 |
masked_t0 = T0 & mask; |
| 992 |
fz = !(masked_t0 | bset); |
| 993 |
|
| 994 |
/* Clear the X, N and Z flags. */
|
| 995 |
T0 = env->pregs[PR_CCS] & ~(X_FLAG | N_FLAG | Z_FLAG); |
| 996 |
/* Set the N and Z flags accordingly. */
|
| 997 |
T0 |= (bset << 3) | (fz << 2); |
| 998 |
RETURN(); |
| 999 |
} |
| 1000 |
|
| 1001 |
void OPPROTO op_bound_T0_T1 (void) |
| 1002 |
{
|
| 1003 |
if (T0 > T1)
|
| 1004 |
T0 = T1; |
| 1005 |
RETURN(); |
| 1006 |
} |
| 1007 |
|
| 1008 |
void OPPROTO op_lz_T0_T1 (void) |
| 1009 |
{
|
| 1010 |
T0 = clz32(T1); |
| 1011 |
RETURN(); |
| 1012 |
} |
| 1013 |
|
| 1014 |
void OPPROTO op_negl_T0_T1 (void) |
| 1015 |
{
|
| 1016 |
T0 = -T1; |
| 1017 |
RETURN(); |
| 1018 |
} |
| 1019 |
|
| 1020 |
void OPPROTO op_negl_T1_T1 (void) |
| 1021 |
{
|
| 1022 |
T1 = -T1; |
| 1023 |
RETURN(); |
| 1024 |
} |
| 1025 |
|
| 1026 |
void OPPROTO op_not_T0_T0 (void) |
| 1027 |
{
|
| 1028 |
T0 = ~(T0); |
| 1029 |
RETURN(); |
| 1030 |
} |
| 1031 |
void OPPROTO op_not_T1_T1 (void) |
| 1032 |
{
|
| 1033 |
T1 = ~(T1); |
| 1034 |
RETURN(); |
| 1035 |
} |
| 1036 |
|
| 1037 |
void OPPROTO op_swapw_T0_T0 (void) |
| 1038 |
{
|
| 1039 |
T0 = (T0 << 16) | ((T0 >> 16)); |
| 1040 |
RETURN(); |
| 1041 |
} |
| 1042 |
|
| 1043 |
void OPPROTO op_swapb_T0_T0 (void) |
| 1044 |
{
|
| 1045 |
T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff); |
| 1046 |
RETURN(); |
| 1047 |
} |
| 1048 |
|
| 1049 |
void OPPROTO op_swapr_T0_T0 (void) |
| 1050 |
{
|
| 1051 |
T0 = (((T0 << 7) & 0x80808080) | |
| 1052 |
((T0 << 5) & 0x40404040) | |
| 1053 |
((T0 << 3) & 0x20202020) | |
| 1054 |
((T0 << 1) & 0x10101010) | |
| 1055 |
((T0 >> 1) & 0x08080808) | |
| 1056 |
((T0 >> 3) & 0x04040404) | |
| 1057 |
((T0 >> 5) & 0x02020202) | |
| 1058 |
((T0 >> 7) & 0x01010101)); |
| 1059 |
RETURN(); |
| 1060 |
} |
| 1061 |
|
| 1062 |
void OPPROTO op_tst_cc_eq (void) { |
| 1063 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1064 |
int z_set;
|
| 1065 |
|
| 1066 |
z_set = !!(flags & Z_FLAG); |
| 1067 |
T0 = z_set; |
| 1068 |
RETURN(); |
| 1069 |
} |
| 1070 |
|
| 1071 |
void OPPROTO op_tst_cc_eq_fast (void) { |
| 1072 |
T0 = !(env->cc_result); |
| 1073 |
RETURN(); |
| 1074 |
} |
| 1075 |
|
| 1076 |
void OPPROTO op_tst_cc_ne (void) { |
| 1077 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1078 |
int z_set;
|
| 1079 |
|
| 1080 |
z_set = !!(flags & Z_FLAG); |
| 1081 |
T0 = !z_set; |
| 1082 |
RETURN(); |
| 1083 |
} |
| 1084 |
void OPPROTO op_tst_cc_ne_fast (void) { |
| 1085 |
T0 = !!(env->cc_result); |
| 1086 |
RETURN(); |
| 1087 |
} |
| 1088 |
|
| 1089 |
void OPPROTO op_tst_cc_cc (void) { |
| 1090 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1091 |
int c_set;
|
| 1092 |
|
| 1093 |
c_set = !!(flags & C_FLAG); |
| 1094 |
T0 = !c_set; |
| 1095 |
RETURN(); |
| 1096 |
} |
| 1097 |
void OPPROTO op_tst_cc_cs (void) { |
| 1098 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1099 |
int c_set;
|
| 1100 |
|
| 1101 |
c_set = !!(flags & C_FLAG); |
| 1102 |
T0 = c_set; |
| 1103 |
RETURN(); |
| 1104 |
} |
| 1105 |
|
| 1106 |
void OPPROTO op_tst_cc_vc (void) { |
| 1107 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1108 |
int v_set;
|
| 1109 |
|
| 1110 |
v_set = !!(flags & V_FLAG); |
| 1111 |
T0 = !v_set; |
| 1112 |
RETURN(); |
| 1113 |
} |
| 1114 |
void OPPROTO op_tst_cc_vs (void) { |
| 1115 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1116 |
int v_set;
|
| 1117 |
|
| 1118 |
v_set = !!(flags & V_FLAG); |
| 1119 |
T0 = v_set; |
| 1120 |
RETURN(); |
| 1121 |
} |
| 1122 |
void OPPROTO op_tst_cc_pl (void) { |
| 1123 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1124 |
int n_set;
|
| 1125 |
|
| 1126 |
n_set = !!(flags & N_FLAG); |
| 1127 |
T0 = !n_set; |
| 1128 |
RETURN(); |
| 1129 |
} |
| 1130 |
void OPPROTO op_tst_cc_pl_fast (void) { |
| 1131 |
T0 = ((int32_t)env->cc_result) >= 0;
|
| 1132 |
RETURN(); |
| 1133 |
} |
| 1134 |
|
| 1135 |
void OPPROTO op_tst_cc_mi (void) { |
| 1136 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1137 |
int n_set;
|
| 1138 |
|
| 1139 |
n_set = !!(flags & N_FLAG); |
| 1140 |
T0 = n_set; |
| 1141 |
RETURN(); |
| 1142 |
} |
| 1143 |
void OPPROTO op_tst_cc_mi_fast (void) { |
| 1144 |
T0 = ((int32_t)env->cc_result) < 0;
|
| 1145 |
RETURN(); |
| 1146 |
} |
| 1147 |
|
| 1148 |
void OPPROTO op_tst_cc_ls (void) { |
| 1149 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1150 |
int c_set;
|
| 1151 |
int z_set;
|
| 1152 |
|
| 1153 |
c_set = !!(flags & C_FLAG); |
| 1154 |
z_set = !!(flags & Z_FLAG); |
| 1155 |
T0 = c_set || z_set; |
| 1156 |
RETURN(); |
| 1157 |
} |
| 1158 |
void OPPROTO op_tst_cc_hi (void) { |
| 1159 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1160 |
int z_set;
|
| 1161 |
int c_set;
|
| 1162 |
|
| 1163 |
z_set = !!(flags & Z_FLAG); |
| 1164 |
c_set = !!(flags & C_FLAG); |
| 1165 |
T0 = !c_set && !z_set; |
| 1166 |
RETURN(); |
| 1167 |
|
| 1168 |
} |
| 1169 |
|
| 1170 |
void OPPROTO op_tst_cc_ge (void) { |
| 1171 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1172 |
int n_set;
|
| 1173 |
int v_set;
|
| 1174 |
|
| 1175 |
n_set = !!(flags & N_FLAG); |
| 1176 |
v_set = !!(flags & V_FLAG); |
| 1177 |
T0 = (n_set && v_set) || (!n_set && !v_set); |
| 1178 |
RETURN(); |
| 1179 |
} |
| 1180 |
|
| 1181 |
void OPPROTO op_tst_cc_ge_fast (void) { |
| 1182 |
T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest); |
| 1183 |
RETURN(); |
| 1184 |
} |
| 1185 |
|
| 1186 |
void OPPROTO op_tst_cc_lt (void) { |
| 1187 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1188 |
int n_set;
|
| 1189 |
int v_set;
|
| 1190 |
|
| 1191 |
n_set = !!(flags & N_FLAG); |
| 1192 |
v_set = !!(flags & V_FLAG); |
| 1193 |
T0 = (n_set && !v_set) || (!n_set && v_set); |
| 1194 |
RETURN(); |
| 1195 |
} |
| 1196 |
|
| 1197 |
void OPPROTO op_tst_cc_gt (void) { |
| 1198 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1199 |
int n_set;
|
| 1200 |
int v_set;
|
| 1201 |
int z_set;
|
| 1202 |
|
| 1203 |
n_set = !!(flags & N_FLAG); |
| 1204 |
v_set = !!(flags & V_FLAG); |
| 1205 |
z_set = !!(flags & Z_FLAG); |
| 1206 |
T0 = (n_set && v_set && !z_set) |
| 1207 |
|| (!n_set && !v_set && !z_set); |
| 1208 |
RETURN(); |
| 1209 |
} |
| 1210 |
|
| 1211 |
void OPPROTO op_tst_cc_le (void) { |
| 1212 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1213 |
int n_set;
|
| 1214 |
int v_set;
|
| 1215 |
int z_set;
|
| 1216 |
|
| 1217 |
n_set = !!(flags & N_FLAG); |
| 1218 |
v_set = !!(flags & V_FLAG); |
| 1219 |
z_set = !!(flags & Z_FLAG); |
| 1220 |
T0 = z_set || (n_set && !v_set) || (!n_set && v_set); |
| 1221 |
RETURN(); |
| 1222 |
} |
| 1223 |
|
| 1224 |
void OPPROTO op_tst_cc_p (void) { |
| 1225 |
uint32_t flags = env->pregs[PR_CCS]; |
| 1226 |
int p_set;
|
| 1227 |
|
| 1228 |
p_set = !!(flags & P_FLAG); |
| 1229 |
T0 = p_set; |
| 1230 |
RETURN(); |
| 1231 |
} |
| 1232 |
|
| 1233 |
/* Evaluate the if the branch should be taken or not. Needs to be done in
|
| 1234 |
the original sequence. The acutal branch is rescheduled to right after the
|
| 1235 |
delay-slot. */
|
| 1236 |
void OPPROTO op_evaluate_bcc (void) |
| 1237 |
{
|
| 1238 |
env->btaken = T0; |
| 1239 |
RETURN(); |
| 1240 |
} |
| 1241 |
|
| 1242 |
/* this one is used on every alu op, optimize it!. */
|
| 1243 |
void OPPROTO op_goto_if_not_x (void) |
| 1244 |
{
|
| 1245 |
if (env->pregs[PR_CCS] & X_FLAG)
|
| 1246 |
GOTO_LABEL_PARAM(1);
|
| 1247 |
RETURN(); |
| 1248 |
} |
| 1249 |
|
| 1250 |
void OPPROTO op_cc_jmp (void) |
| 1251 |
{
|
| 1252 |
if (env->btaken)
|
| 1253 |
env->pc = PARAM1; |
| 1254 |
else
|
| 1255 |
env->pc = PARAM2; |
| 1256 |
RETURN(); |
| 1257 |
} |
| 1258 |
|
| 1259 |
void OPPROTO op_cc_ngoto (void) |
| 1260 |
{
|
| 1261 |
if (!env->btaken)
|
| 1262 |
GOTO_LABEL_PARAM(1);
|
| 1263 |
RETURN(); |
| 1264 |
} |
| 1265 |
|
| 1266 |
void OPPROTO op_movl_btarget_T0 (void) |
| 1267 |
{
|
| 1268 |
env->btarget = T0; |
| 1269 |
RETURN(); |
| 1270 |
} |
| 1271 |
|
| 1272 |
void OPPROTO op_jmp1 (void) |
| 1273 |
{
|
| 1274 |
env->pc = env->btarget; |
| 1275 |
RETURN(); |
| 1276 |
} |
| 1277 |
|
| 1278 |
/* Load and store */
|
| 1279 |
#define MEMSUFFIX _raw
|
| 1280 |
#include "op_mem.c" |
| 1281 |
#undef MEMSUFFIX
|
| 1282 |
#if !defined(CONFIG_USER_ONLY)
|
| 1283 |
#define MEMSUFFIX _user
|
| 1284 |
#include "op_mem.c" |
| 1285 |
#undef MEMSUFFIX
|
| 1286 |
|
| 1287 |
#define MEMSUFFIX _kernel
|
| 1288 |
#include "op_mem.c" |
| 1289 |
#undef MEMSUFFIX
|
| 1290 |
#endif
|