80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity
Files
c833ad3e732691c6a90cedccf33273c9358fb14c
86Box-fork/src/codegen_new/codegen_ops_logic.c

808 lines
30 KiB
C
Raw Blame History

#include <stdint.h>
#include <86box/86box.h>
#include "cpu.h"
#include <86box/mem.h>
#include "x86.h"
#include "x86_flags.h"
#include "386_common.h"
#include "codegen.h"
#include "codegen_ir.h"
#include "codegen_ops.h"
#include "codegen_ops_helpers.h"
#include "codegen_ops_logic.h"
uint32_t ropAND_AL_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint8_t imm_data = fastreadb(cs + op_pc);
uop_AND_IMM(ir, IREG_AL, IREG_AL, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_AL);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 1);
return op_pc + 1;
}
uint32_t ropAND_AX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint16_t imm_data = fastreadw(cs + op_pc);
uop_AND_IMM(ir, IREG_AX, IREG_AX, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_AX);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 2);
return op_pc + 2;
}
uint32_t ropAND_EAX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
if (block->flags & CODEBLOCK_NO_IMMEDIATES)
{
LOAD_IMMEDIATE_FROM_RAM_32(block, ir, IREG_temp0, cs + op_pc);
uop_AND(ir, IREG_EAX, IREG_EAX, IREG_temp0);
}
else
{
fetchdat = fastreadl(cs + op_pc);
codegen_mark_code_present(block, cs+op_pc, 4);
uop_AND_IMM(ir, IREG_EAX, IREG_EAX, fetchdat);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, IREG_EAX);
codegen_flags_changed = 1;
return op_pc + 4;
}
uint32_t ropAND_b_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropAND_b_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_AND(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_temp0_B, IREG_temp0_B, IREG_8(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_B);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropAND_w_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropAND_w_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_AND(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_temp0_W, IREG_temp0_W, IREG_16(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_W);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropAND_l_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, IREG_32(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropAND_l_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_AND(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
uop_MOV(ir, IREG_flags_res, IREG_32(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_temp0, IREG_temp0, IREG_32(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0);
uop_MOV(ir, IREG_flags_res, IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_AL_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint8_t imm_data = fastreadb(cs + op_pc);
uop_OR_IMM(ir, IREG_AL, IREG_AL, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_AL);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 1);
return op_pc + 1;
}
uint32_t ropOR_AX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint16_t imm_data = fastreadw(cs + op_pc);
uop_OR_IMM(ir, IREG_AX, IREG_AX, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_AX);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 2);
return op_pc + 2;
}
uint32_t ropOR_EAX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
if (block->flags & CODEBLOCK_NO_IMMEDIATES)
{
LOAD_IMMEDIATE_FROM_RAM_32(block, ir, IREG_temp0, cs + op_pc);
uop_OR(ir, IREG_EAX, IREG_EAX, IREG_temp0);
}
else
{
fetchdat = fastreadl(cs + op_pc);
codegen_mark_code_present(block, cs+op_pc, 4);
uop_OR_IMM(ir, IREG_EAX, IREG_EAX, fetchdat);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, IREG_EAX);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 4);
return op_pc + 4;
}
uint32_t ropOR_b_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_OR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_b_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_OR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_temp0_B, IREG_temp0_B, IREG_8(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_B);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_w_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_OR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_w_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_OR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_temp0_W, IREG_temp0_W, IREG_16(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_W);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_l_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_OR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, dest_reg);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropOR_l_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_OR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
uop_MOV(ir, IREG_flags_res, IREG_32(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_OR(ir, IREG_temp0, IREG_temp0, IREG_32(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0);
uop_MOV(ir, IREG_flags_res, IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropTEST_AL_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint8_t imm_data = fastreadb(cs + op_pc);
uop_AND_IMM(ir, IREG_flags_res, IREG_EAX, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 1);
return op_pc + 1;
}
uint32_t ropTEST_AX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint16_t imm_data = fastreadw(cs + op_pc);
uop_AND_IMM(ir, IREG_flags_res, IREG_EAX, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 2);
return op_pc + 2;
}
uint32_t ropTEST_EAX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
if (block->flags & CODEBLOCK_NO_IMMEDIATES)
{
LOAD_IMMEDIATE_FROM_RAM_32(block, ir, IREG_temp0, cs + op_pc);
uop_AND(ir, IREG_flags_res, IREG_EAX, IREG_temp0);
}
else
{
fetchdat = fastreadl(cs + op_pc);
codegen_mark_code_present(block, cs+op_pc, 4);
uop_AND_IMM(ir, IREG_flags_res, IREG_EAX, fetchdat);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 4);
return op_pc + 4;
}
uint32_t ropTEST_b_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_flags_res_B, IREG_8(dest_reg), IREG_8(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_flags_res_B, IREG_8(dest_reg), IREG_temp0_B);
}
uop_MOVZX(ir, IREG_flags_res, IREG_flags_res_B);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropTEST_w_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_flags_res_W, IREG_16(dest_reg), IREG_16(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_flags_res_W, IREG_16(dest_reg), IREG_temp0_W);
}
uop_MOVZX(ir, IREG_flags_res, IREG_flags_res_W);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropTEST_l_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_AND(ir, IREG_flags_res, IREG_32(dest_reg), IREG_32(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_AND(ir, IREG_flags_res, IREG_32(dest_reg), IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_AL_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint8_t imm_data = fastreadb(cs + op_pc);
uop_XOR_IMM(ir, IREG_AL, IREG_AL, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_AL);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 1);
return op_pc + 1;
}
uint32_t ropXOR_AX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
uint16_t imm_data = fastreadw(cs + op_pc);
uop_XOR_IMM(ir, IREG_AX, IREG_AX, imm_data);
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_AX);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 2);
return op_pc + 2;
}
uint32_t ropXOR_EAX_imm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
if (block->flags & CODEBLOCK_NO_IMMEDIATES)
{
LOAD_IMMEDIATE_FROM_RAM_32(block, ir, IREG_temp0, cs + op_pc);
uop_XOR(ir, IREG_EAX, IREG_EAX, IREG_temp0);
}
else
{
fetchdat = fastreadl(cs + op_pc);
codegen_mark_code_present(block, cs+op_pc, 4);
uop_XOR_IMM(ir, IREG_EAX, IREG_EAX, fetchdat);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, IREG_EAX);
codegen_flags_changed = 1;
codegen_mark_code_present(block, cs+op_pc, 4);
return op_pc + 4;
}
uint32_t ropXOR_b_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_XOR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_b_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_XOR(ir, IREG_8(dest_reg), IREG_8(dest_reg), IREG_8(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_8(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_B, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_temp0_B, IREG_temp0_B, IREG_8(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_B);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_B);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN8);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_w_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_XOR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_w_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_XOR(ir, IREG_16(dest_reg), IREG_16(dest_reg), IREG_16(src_reg));
uop_MOVZX(ir, IREG_flags_res, IREG_16(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0_W, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_temp0_W, IREG_temp0_W, IREG_16(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0_W);
uop_MOVZX(ir, IREG_flags_res, IREG_temp0_W);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN16);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_l_rm(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int dest_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int src_reg = fetchdat & 7;
uop_XOR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_read(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
uop_MOV(ir, IREG_flags_res, dest_reg);
codegen_flags_changed = 1;
return op_pc + 1;
}
uint32_t ropXOR_l_rmw(codeblock_t *block, ir_data_t *ir, uint8_t opcode, uint32_t fetchdat, uint32_t op_32, uint32_t op_pc)
{
int src_reg = (fetchdat >> 3) & 7;
codegen_mark_code_present(block, cs+op_pc, 1);
if ((fetchdat & 0xc0) == 0xc0)
{
int dest_reg = fetchdat & 7;
uop_XOR(ir, IREG_32(dest_reg), IREG_32(dest_reg), IREG_32(src_reg));
uop_MOV(ir, IREG_flags_res, IREG_32(dest_reg));
}
else
{
x86seg *target_seg;
uop_MOV_IMM(ir, IREG_oldpc, cpu_state.oldpc);
target_seg = codegen_generate_ea(ir, op_ea_seg, fetchdat, op_ssegs, &op_pc, op_32, 0);
codegen_check_seg_write(block, ir, target_seg);
uop_MEM_LOAD_REG(ir, IREG_temp0, ireg_seg_base(target_seg), IREG_eaaddr);
uop_XOR(ir, IREG_temp0, IREG_temp0, IREG_32(src_reg));
uop_MEM_STORE_REG(ir, ireg_seg_base(target_seg), IREG_eaaddr, IREG_temp0);
uop_MOV(ir, IREG_flags_res, IREG_temp0);
}
uop_MOV_IMM(ir, IREG_flags_op, FLAGS_ZN32);
codegen_flags_changed = 1;
return op_pc + 1;
}
View Git Blame Copy Permalink