git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3464 c046a42c-6fe2-441c-8c8c-71466251a162
1288 lines
21 KiB
C
1288 lines
21 KiB
C
/*
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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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#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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#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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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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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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/* 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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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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/* 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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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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src = env->cc_src;
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dst = env->cc_dest;
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res = env->cc_result;
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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;
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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;
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evaluate_flags_writeback(flags);
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RETURN();
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}
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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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src = env->cc_src;
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dst = env->cc_dest;
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res = env->cc_result;
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if ((res & 0x80000000L) != 0L)
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{
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flags |= N_FLAG;
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if (((src & 0x80000000L) == 0L)
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&& ((dst & 0x80000000L) == 0L))
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{
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flags |= V_FLAG;
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}
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else if (((src & 0x80000000L) != 0L) &&
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((dst & 0x80000000L) != 0L))
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{
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flags |= R_FLAG;
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}
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}
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else
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{
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if (res == 0L)
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flags |= Z_FLAG;
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if (((src & 0x80000000L) != 0L)
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&& ((dst & 0x80000000L) != 0L))
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flags |= V_FLAG;
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if ((dst & 0x80000000L) != 0L
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|| (src & 0x80000000L) != 0L)
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flags |= R_FLAG;
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}
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evaluate_flags_writeback(flags);
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RETURN();
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}
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void OPPROTO op_evaluate_flags_alu_4(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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src = env->cc_src;
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dst = env->cc_dest;
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res = env->cc_result;
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if ((res & 0x80000000L) != 0L)
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{
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flags |= N_FLAG;
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if (((src & 0x80000000L) == 0L)
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&& ((dst & 0x80000000L) == 0L))
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{
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flags |= V_FLAG;
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}
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else if (((src & 0x80000000L) != 0L) &&
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((dst & 0x80000000L) != 0L))
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{
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flags |= C_FLAG;
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}
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}
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else
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{
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if (res == 0L)
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flags |= Z_FLAG;
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if (((src & 0x80000000L) != 0L)
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&& ((dst & 0x80000000L) != 0L))
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flags |= V_FLAG;
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if ((dst & 0x80000000L) != 0L
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|| (src & 0x80000000L) != 0L)
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flags |= C_FLAG;
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}
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if (env->cc_op == CC_OP_SUB
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|| env->cc_op == CC_OP_CMP) {
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flags ^= C_FLAG;
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}
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evaluate_flags_writeback(flags);
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RETURN();
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}
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void OPPROTO op_evaluate_flags_move_4 (void)
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{
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uint32_t src;
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uint32_t res;
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uint32_t flags = 0;
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src = env->cc_src;
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res = env->cc_result;
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if ((int32_t)res < 0)
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flags |= N_FLAG;
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else if (res == 0L)
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flags |= Z_FLAG;
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evaluate_flags_writeback(flags);
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RETURN();
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}
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void OPPROTO op_evaluate_flags_move_2 (void)
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{
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uint32_t src;
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uint32_t flags = 0;
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uint16_t res;
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src = env->cc_src;
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res = env->cc_result;
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if ((int16_t)res < 0L)
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flags |= N_FLAG;
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else if (res == 0)
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flags |= Z_FLAG;
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evaluate_flags_writeback(flags);
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RETURN();
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}
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/* TODO: This is expensive. We could split things up and only evaluate part of
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CCR on a need to know basis. For now, we simply re-evaluate everything. */
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|
void OPPROTO op_evaluate_flags (void)
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|
{
|
|
uint32_t src;
|
|
uint32_t dst;
|
|
uint32_t res;
|
|
uint32_t flags = 0;
|
|
|
|
src = env->cc_src;
|
|
dst = env->cc_dest;
|
|
res = env->cc_result;
|
|
|
|
|
|
/* Now, evaluate the flags. This stuff is based on
|
|
Per Zander's CRISv10 simulator. */
|
|
switch (env->cc_size)
|
|
{
|
|
case 1:
|
|
if ((res & 0x80L) != 0L)
|
|
{
|
|
flags |= N_FLAG;
|
|
if (((src & 0x80L) == 0L)
|
|
&& ((dst & 0x80L) == 0L))
|
|
{
|
|
flags |= V_FLAG;
|
|
}
|
|
else if (((src & 0x80L) != 0L)
|
|
&& ((dst & 0x80L) != 0L))
|
|
{
|
|
flags |= C_FLAG;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((res & 0xFFL) == 0L)
|
|
{
|
|
flags |= Z_FLAG;
|
|
}
|
|
if (((src & 0x80L) != 0L)
|
|
&& ((dst & 0x80L) != 0L))
|
|
{
|
|
flags |= V_FLAG;
|
|
}
|
|
if ((dst & 0x80L) != 0L
|
|
|| (src & 0x80L) != 0L)
|
|
{
|
|
flags |= C_FLAG;
|
|
}
|
|
}
|
|
break;
|
|
case 2:
|
|
if ((res & 0x8000L) != 0L)
|
|
{
|
|
flags |= N_FLAG;
|
|
if (((src & 0x8000L) == 0L)
|
|
&& ((dst & 0x8000L) == 0L))
|
|
{
|
|
flags |= V_FLAG;
|
|
}
|
|
else if (((src & 0x8000L) != 0L)
|
|
&& ((dst & 0x8000L) != 0L))
|
|
{
|
|
flags |= C_FLAG;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((res & 0xFFFFL) == 0L)
|
|
{
|
|
flags |= Z_FLAG;
|
|
}
|
|
if (((src & 0x8000L) != 0L)
|
|
&& ((dst & 0x8000L) != 0L))
|
|
{
|
|
flags |= V_FLAG;
|
|
}
|
|
if ((dst & 0x8000L) != 0L
|
|
|| (src & 0x8000L) != 0L)
|
|
{
|
|
flags |= C_FLAG;
|
|
}
|
|
}
|
|
break;
|
|
case 4:
|
|
if ((res & 0x80000000L) != 0L)
|
|
{
|
|
flags |= N_FLAG;
|
|
if (((src & 0x80000000L) == 0L)
|
|
&& ((dst & 0x80000000L) == 0L))
|
|
{
|
|
flags |= V_FLAG;
|
|
}
|
|
else if (((src & 0x80000000L) != 0L) &&
|
|
((dst & 0x80000000L) != 0L))
|
|
{
|
|
flags |= C_FLAG;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (res == 0L)
|
|
flags |= Z_FLAG;
|
|
if (((src & 0x80000000L) != 0L)
|
|
&& ((dst & 0x80000000L) != 0L))
|
|
flags |= V_FLAG;
|
|
if ((dst & 0x80000000L) != 0L
|
|
|| (src & 0x80000000L) != 0L)
|
|
flags |= C_FLAG;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (env->cc_op == CC_OP_SUB
|
|
|| env->cc_op == CC_OP_CMP) {
|
|
flags ^= C_FLAG;
|
|
}
|
|
evaluate_flags_writeback(flags);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_extb_T0_T0 (void)
|
|
{
|
|
T0 = ((int8_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_extb_T1_T0 (void)
|
|
{
|
|
T1 = ((int8_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_extb_T1_T1 (void)
|
|
{
|
|
T1 = ((int8_t)T1);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_zextb_T0_T0 (void)
|
|
{
|
|
T0 = ((uint8_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_zextb_T1_T0 (void)
|
|
{
|
|
T1 = ((uint8_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_zextb_T1_T1 (void)
|
|
{
|
|
T1 = ((uint8_t)T1);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_extw_T0_T0 (void)
|
|
{
|
|
T0 = ((int16_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_extw_T1_T0 (void)
|
|
{
|
|
T1 = ((int16_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_extw_T1_T1 (void)
|
|
{
|
|
T1 = ((int16_t)T1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_zextw_T0_T0 (void)
|
|
{
|
|
T0 = ((uint16_t)T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_zextw_T1_T0 (void)
|
|
{
|
|
T1 = ((uint16_t)T0);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_zextw_T1_T1 (void)
|
|
{
|
|
T1 = ((uint16_t)T1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_T0_im (void)
|
|
{
|
|
T0 = PARAM1;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_movl_T1_im (void)
|
|
{
|
|
T1 = PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_addl_T0_im (void)
|
|
{
|
|
T0 += PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_addl_T1_im (void)
|
|
{
|
|
T1 += PARAM1;
|
|
RETURN();
|
|
|
|
}
|
|
void OPPROTO op_subl_T0_im (void)
|
|
{
|
|
T0 -= PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_addxl_T0_C (void)
|
|
{
|
|
if (env->pregs[SR_CCS] & X_FLAG)
|
|
T0 += !!(env->pregs[SR_CCS] & C_FLAG);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_subxl_T0_C (void)
|
|
{
|
|
if (env->pregs[SR_CCS] & X_FLAG)
|
|
T0 -= !!(env->pregs[SR_CCS] & C_FLAG);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_addl_T0_C (void)
|
|
{
|
|
T0 += !!(env->pregs[SR_CCS] & C_FLAG);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_addl_T0_R (void)
|
|
{
|
|
T0 += !!(env->pregs[SR_CCS] & R_FLAG);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_clr_R (void)
|
|
{
|
|
env->pregs[SR_CCS] &= ~R_FLAG;
|
|
RETURN();
|
|
}
|
|
|
|
|
|
void OPPROTO op_andl_T0_im (void)
|
|
{
|
|
T0 &= PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_andl_T1_im (void)
|
|
{
|
|
T1 &= PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_T0_T1 (void)
|
|
{
|
|
T0 = T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_swp_T0_T1 (void)
|
|
{
|
|
T0 ^= T1;
|
|
T1 ^= T0;
|
|
T0 ^= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_T1_T0 (void)
|
|
{
|
|
T1 = T0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_pc_T0 (void)
|
|
{
|
|
env->pc = T0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_T0_0 (void)
|
|
{
|
|
T0 = 0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_addl_T0_T1 (void)
|
|
{
|
|
T0 += T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_subl_T0_T1 (void)
|
|
{
|
|
T0 -= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_absl_T1_T1 (void)
|
|
{
|
|
int32_t st = T1;
|
|
|
|
T1 = st < 0 ? -st : st;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_muls_T0_T1 (void)
|
|
{
|
|
int64_t tmp, t0 ,t1;
|
|
|
|
/* cast into signed values to make GCC sign extend these babies. */
|
|
t0 = (int32_t)T0;
|
|
t1 = (int32_t)T1;
|
|
|
|
tmp = t0 * t1;
|
|
T0 = tmp & 0xffffffff;
|
|
env->pregs[REG_MOF] = tmp >> 32;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_mulu_T0_T1 (void)
|
|
{
|
|
uint64_t tmp, t0 ,t1;
|
|
t0 = T0;
|
|
t1 = T1;
|
|
|
|
tmp = t0 * t1;
|
|
T0 = tmp & 0xffffffff;
|
|
env->pregs[REG_MOF] = tmp >> 32;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_dstep_T0_T1 (void)
|
|
{
|
|
T0 <<= 1;
|
|
if (T0 >= T1)
|
|
T0 -= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_orl_T0_T1 (void)
|
|
{
|
|
T0 |= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_andl_T0_T1 (void)
|
|
{
|
|
T0 &= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_xorl_T0_T1 (void)
|
|
{
|
|
T0 ^= T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_lsll_T0_T1 (void)
|
|
{
|
|
int s = T1;
|
|
if (s > 31)
|
|
T0 = 0;
|
|
else
|
|
T0 <<= s;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_lsll_T0_im (void)
|
|
{
|
|
T0 <<= PARAM1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_lsrl_T0_T1 (void)
|
|
{
|
|
int s = T1;
|
|
if (s > 31)
|
|
T0 = 0;
|
|
else
|
|
T0 >>= s;
|
|
RETURN();
|
|
}
|
|
|
|
/* Rely on GCC emitting an arithmetic shift for signed right shifts. */
|
|
void OPPROTO op_asrl_T0_T1 (void)
|
|
{
|
|
int s = T1;
|
|
if (s > 31)
|
|
T0 = T0 & 0x80000000 ? -1 : 0;
|
|
else
|
|
T0 = (int32_t)T0 >> s;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_btst_T0_T1 (void)
|
|
{
|
|
/* FIXME: clean this up. */
|
|
|
|
/* des ref:
|
|
The N flag is set according to the selected bit in the dest reg.
|
|
The Z flag is set if the selected bit and all bits to the right are
|
|
zero.
|
|
The destination reg is not affected.*/
|
|
unsigned int fz, sbit, bset, mask, masked_t0;
|
|
|
|
sbit = T1 & 31;
|
|
bset = !!(T0 & (1 << sbit));
|
|
mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1;
|
|
masked_t0 = T0 & mask;
|
|
fz = !(masked_t0 | bset);
|
|
/* Set the N and Z flags accordingly. */
|
|
T0 = (bset << 3) | (fz << 2);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_bound_T0_T1 (void)
|
|
{
|
|
if (T0 > T1)
|
|
T0 = T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_lz_T0_T1 (void)
|
|
{
|
|
T0 = clz32(T1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_negl_T0_T1 (void)
|
|
{
|
|
T0 = -T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_negl_T1_T1 (void)
|
|
{
|
|
T1 = -T1;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_not_T0_T0 (void)
|
|
{
|
|
T0 = ~(T0);
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_not_T1_T1 (void)
|
|
{
|
|
T1 = ~(T1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_swapw_T0_T0 (void)
|
|
{
|
|
T0 = (T0 << 16) | ((T0 >> 16));
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_swapb_T0_T0 (void)
|
|
{
|
|
T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_swapr_T0_T0 (void)
|
|
{
|
|
T0 = (((T0 << 7) & 0x80808080) |
|
|
((T0 << 5) & 0x40404040) |
|
|
((T0 << 3) & 0x20202020) |
|
|
((T0 << 1) & 0x10101010) |
|
|
((T0 >> 1) & 0x08080808) |
|
|
((T0 >> 3) & 0x04040404) |
|
|
((T0 >> 5) & 0x02020202) |
|
|
((T0 >> 7) & 0x01010101));
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_eq (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int z_set;
|
|
|
|
z_set = !!(flags & Z_FLAG);
|
|
T0 = z_set;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_eq_fast (void) {
|
|
T0 = !(env->cc_result);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_ne (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int z_set;
|
|
|
|
z_set = !!(flags & Z_FLAG);
|
|
T0 = !z_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_ne_fast (void) {
|
|
T0 = !!(env->cc_result);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_cc (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int c_set;
|
|
|
|
c_set = !!(flags & C_FLAG);
|
|
T0 = !c_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_cs (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int c_set;
|
|
|
|
c_set = !!(flags & C_FLAG);
|
|
T0 = c_set;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_vc (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int v_set;
|
|
|
|
v_set = !!(flags & V_FLAG);
|
|
T0 = !v_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_vs (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int v_set;
|
|
|
|
v_set = !!(flags & V_FLAG);
|
|
T0 = v_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_pl (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
T0 = !n_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_pl_fast (void) {
|
|
T0 = ((int32_t)env->cc_result) >= 0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_mi (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
T0 = n_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_mi_fast (void) {
|
|
T0 = ((int32_t)env->cc_result) < 0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_ls (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int c_set;
|
|
int z_set;
|
|
|
|
c_set = !!(flags & C_FLAG);
|
|
z_set = !!(flags & Z_FLAG);
|
|
T0 = c_set || z_set;
|
|
RETURN();
|
|
}
|
|
void OPPROTO op_tst_cc_hi (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int z_set;
|
|
int c_set;
|
|
|
|
z_set = !!(flags & Z_FLAG);
|
|
c_set = !!(flags & C_FLAG);
|
|
T0 = !c_set && !z_set;
|
|
RETURN();
|
|
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_ge (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
int v_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
v_set = !!(flags & V_FLAG);
|
|
T0 = (n_set && v_set) || (!n_set && !v_set);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_ge_fast (void) {
|
|
T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_lt (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
int v_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
v_set = !!(flags & V_FLAG);
|
|
T0 = (n_set && !v_set) || (!n_set && v_set);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_gt (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
int v_set;
|
|
int z_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
v_set = !!(flags & V_FLAG);
|
|
z_set = !!(flags & Z_FLAG);
|
|
T0 = (n_set && v_set && !z_set)
|
|
|| (!n_set && !v_set && !z_set);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_le (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int n_set;
|
|
int v_set;
|
|
int z_set;
|
|
|
|
n_set = !!(flags & N_FLAG);
|
|
v_set = !!(flags & V_FLAG);
|
|
z_set = !!(flags & Z_FLAG);
|
|
T0 = z_set || (n_set && !v_set) || (!n_set && v_set);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_tst_cc_p (void) {
|
|
uint32_t flags = env->pregs[SR_CCS];
|
|
int p_set;
|
|
|
|
p_set = !!(flags & P_FLAG);
|
|
T0 = p_set;
|
|
RETURN();
|
|
}
|
|
|
|
/* Evaluate the if the branch should be taken or not. Needs to be done in
|
|
the original sequence. The acutal branch is rescheduled to right after the
|
|
delay-slot. */
|
|
void OPPROTO op_evaluate_bcc (void)
|
|
{
|
|
env->btaken = T0;
|
|
RETURN();
|
|
}
|
|
|
|
/* this one is used on every alu op, optimize it!. */
|
|
void OPPROTO op_goto_if_not_x (void)
|
|
{
|
|
if (env->pregs[SR_CCS] & X_FLAG)
|
|
GOTO_LABEL_PARAM(1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_cc_jmp (void)
|
|
{
|
|
if (env->btaken)
|
|
env->pc = PARAM1;
|
|
else
|
|
env->pc = PARAM2;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_cc_ngoto (void)
|
|
{
|
|
if (!env->btaken)
|
|
GOTO_LABEL_PARAM(1);
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_movl_btarget_T0 (void)
|
|
{
|
|
env->btarget = T0;
|
|
RETURN();
|
|
}
|
|
|
|
void OPPROTO op_jmp (void)
|
|
{
|
|
env->pc = env->btarget;
|
|
RETURN();
|
|
}
|
|
|
|
/* Load and store */
|
|
#define MEMSUFFIX _raw
|
|
#include "op_mem.c"
|
|
#undef MEMSUFFIX
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
#define MEMSUFFIX _user
|
|
#include "op_mem.c"
|
|
#undef MEMSUFFIX
|
|
|
|
#define MEMSUFFIX _kernel
|
|
#include "op_mem.c"
|
|
#undef MEMSUFFIX
|
|
#endif
|