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Renamed the three CPU folders to their final names.

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This commit is contained in:
OBattler
2020-06-13 10:54:05 +02:00
parent 395537070b
commit 60ba71cb4b
197 changed files with 9 additions and 32694 deletions
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75
src/codegen_new/codegen_ops_helpers.c Normal file
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#include <stdint.h>
#include <86box/86box.h>
#include "cpu.h"
#include <86box/mem.h>
#include "x86.h"
#include "386_common.h"
#include "codegen.h"
#include "codegen_ir.h"
#include "codegen_ir_defs.h"
#include "codegen_reg.h"
#include "codegen_ops_helpers.h"
void LOAD_IMMEDIATE_FROM_RAM_16_unaligned(codeblock_t *block, ir_data_t *ir, int dest_reg, uint32_t addr)
{
/*Word access that crosses two pages. Perform reads from both pages, shift and combine*/
uop_MOVZX_REG_PTR_8(ir, IREG_temp3_W, get_ram_ptr(addr));
uop_MOVZX_REG_PTR_8(ir, dest_reg, get_ram_ptr(addr+1));
uop_SHL_IMM(ir, IREG_temp3_W, IREG_temp3_W, 8);
uop_OR(ir, dest_reg, dest_reg, IREG_temp3_W);
}
void LOAD_IMMEDIATE_FROM_RAM_32_unaligned(codeblock_t *block, ir_data_t *ir, int dest_reg, uint32_t addr)
{
/*Dword access that crosses two pages. Perform reads from both pages, shift and combine*/
uop_MOV_REG_PTR(ir, dest_reg, get_ram_ptr(addr & ~3));
uop_MOV_REG_PTR(ir, IREG_temp3, get_ram_ptr((addr + 4) & ~3));
uop_SHR_IMM(ir, dest_reg, dest_reg, (addr & 3) * 8);
uop_SHL_IMM(ir, IREG_temp3, IREG_temp3, (4 - (addr & 3)) * 8);
uop_OR(ir, dest_reg, dest_reg, IREG_temp3);
}
#define UNROLL_MAX_REG_REFERENCES 200
#define UNROLL_MAX_UOPS 1000
#define UNROLL_MAX_COUNT 10
int codegen_can_unroll_full(codeblock_t *block, ir_data_t *ir, uint32_t next_pc, uint32_t dest_addr)
{
int start;
int max_unroll;
int first_instruction;
int TOP = -1;
/*Check that dest instruction was actually compiled into block*/
start = codegen_get_instruction_uop(block, dest_addr, &first_instruction, &TOP);
/*Couldn't find any uOPs corresponding to the destination instruction*/
if (start == -1)
{
/*Is instruction jumping to itself?*/
if (dest_addr != cpu_state.oldpc)
{
return 0;
}
else
{
start = ir->wr_pos;
TOP = cpu_state.TOP;
}
}
if (TOP != cpu_state.TOP)
return 0;
max_unroll = UNROLL_MAX_UOPS / ((ir->wr_pos-start)+6);
if (max_unroll > (UNROLL_MAX_REG_REFERENCES / max_version_refcount))
max_unroll = (UNROLL_MAX_REG_REFERENCES / max_version_refcount);
if (max_unroll > UNROLL_MAX_COUNT)
max_unroll = UNROLL_MAX_COUNT;
if (max_unroll <= 1)
return 0;
codegen_ir_set_unroll(max_unroll, start, first_instruction);
return 1;
}