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Added code generation for memory versions of MOV, and memory source versions of ADD, SUB, AND, OR, XOR and CMP.

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This commit is contained in:
TomW 2015-02-08 17:17:14 +00:00
commit ba715706b6
11 changed files with 997 additions and 85 deletions
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65
src/codegen_x86.c
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@ -10,13 +10,15 @@
#include "x87.h"
#include "mem.h"
#include "386_common.h"
#include "codegen.h"
#include "codegen_ops.h"
#include "codegen_ops_x86.h"
#include "386_common.h"
#define BLOCK_EXIT_OFFSET 0x7f0
x86seg *op_ea_seg;
int op_ssegs;
uint32_t op_old_pc;
uint32_t recomp_page = -1;
@ -38,6 +40,7 @@ static uint32_t codegen_endpc;
int codegen_block_cycles;
static int codegen_block_ins;
static int codegen_block_full_ins;
static uint32_t last_op32;
static x86seg *last_ea_seg;
@ -188,17 +191,28 @@ void codegen_block_init(uint32_t phys_addr)
block->use32 = use32;
block->next = block->prev = NULL;
block_pos = 0;
block_pos = BLOCK_GPF_OFFSET;
addbyte(0xc7); /*MOV [ESP],0*/
addbyte(0x04);
addbyte(0x24);
addlong(0);
addbyte(0xc7); /*MOV [ESP+4],0*/
addbyte(0x44);
addbyte(0x24);
addbyte(0x04);
addlong(0);
addbyte(0xe8); /*CALL x86gpf*/
addlong((uint32_t)x86gpf - (uint32_t)(&codeblock[block_current].data[block_pos + 4]));
block_pos = BLOCK_EXIT_OFFSET; /*Exit code*/
addbyte(0x83); /*ADDL $8,%esp*/
addbyte(0x83); /*ADDL $16,%esp*/
addbyte(0xC4);
addbyte(0x08);
addbyte(0x10);
addbyte(0xC3); /*RET*/
cpu_block_end = 0;
block_pos = 0; /*Entry code*/
addbyte(0x83); /*SUBL $8,%esp*/
addbyte(0x83); /*SUBL $16,%esp*/
addbyte(0xEC);
addbyte(0x08);
addbyte(0x10);
// pclog("New block %i for %08X %03x\n", block_current, cs+pc, block_num);
@ -210,6 +224,7 @@ void codegen_block_init(uint32_t phys_addr)
codegen_timing_block_start();
codegen_block_ins = 0;
codegen_block_full_ins = 0;
recomp_page = phys_addr & ~0xfff;
}
@ -342,11 +357,22 @@ void codegen_block_end()
addlong((uint32_t)&cpu_recomp_ins);
addlong(codegen_block_ins);
}
addbyte(0x83); /*ADDL $8,%esp*/
#if 0
if (codegen_block_full_ins)
{
addbyte(0x81); /*ADD $codegen_block_ins,ins*/
addbyte(0x05);
addlong((uint32_t)&cpu_recomp_full_ins);
addlong(codegen_block_full_ins);
}
#endif
addbyte(0x83); /*ADDL $16,%esp*/
addbyte(0xC4);
addbyte(0x08);
addbyte(0x10);
addbyte(0xC3); /*RET*/
if (block_pos > BLOCK_GPF_OFFSET)
fatal("Over limit!\n");
// pclog("End block %i\n", block_num);
recomp_page = -1;
@ -636,8 +662,6 @@ void codegen_generate_call(uint8_t opcode, OpFn op, uint32_t fetchdat, uint32_t
uint32_t op_32 = use32;
uint32_t op_pc = new_pc;
OpFn *op_table = x86_dynarec_opcodes;
x86seg *op_ea_seg = &_ds;
int op_ssegs = 0;
int opcode_shift = 0;
int opcode_mask = 0x3ff;
int over = 0;
@ -645,6 +669,10 @@ void codegen_generate_call(uint8_t opcode, OpFn op, uint32_t fetchdat, uint32_t
int test_modrm = 1;
int c;
op_ea_seg = &_ds;
op_ssegs = 0;
op_old_pc = old_pc;
for (c = 0; c < NR_HOST_REGS; c++)
host_reg_mapping[c] = -1;
@ -779,6 +807,7 @@ generate_call:
codegen_block_ins++;
block->ins++;
codegen_block_full_ins++;
codegen_endpc = (cs + pc) + 8;
return;
@ -899,6 +928,16 @@ generate_call:
addlong(codegen_block_ins);
codegen_block_ins = 0;
}
#if 0
if (codegen_block_full_ins)
{
addbyte(0x81); /*ADD $codegen_block_ins,ins*/
addbyte(0x05);
addlong((uint32_t)&cpu_recomp_full_ins);
addlong(codegen_block_full_ins);
codegen_block_full_ins = 0;
}
#endif
}
block->ins++;