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First stage of dynamic recompiler rewrite.

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Basic IR generation calls C implementation of all instructions.
Backend generation implemented for x86, x86-64, ARM and ARM64.
This commit is contained in:
SarahW 2018-06-17 20:26:15 +01:00
commit 03fe25d818
46 changed files with 4134 additions and 17767 deletions
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43
src/codegen.c
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@ -2,6 +2,13 @@
#include "x86_ops.h"
#include "mem.h"
#include "codegen.h"
#include "x86.h"
#include "codegen_backend.h"
#include "codegen_ir.h"
codeblock_t *codeblock;
codeblock_t **codeblock_hash;
void (*codegen_timing_start)();
void (*codegen_timing_prefix)(uint8_t prefix, uint32_t fetchdat);
@ -19,3 +26,39 @@ void codegen_timing_set(codegen_timing_t *timing)
}
int codegen_in_recompile;
void codegen_generate_call(uint8_t opcode, OpFn op, uint32_t fetchdat, uint32_t new_pc, uint32_t old_pc)
{
codeblock_t *block = &codeblock[block_current];
ir_data_t *ir = codegen_get_ir_data();
uint32_t op_pc = new_pc;
OpFn *op_table = x86_dynarec_opcodes;
int opcode_shift = 0;
int opcode_mask = 0x3ff;
uint32_t op_32 = use32;
//pclog("%04x:%08x : %02x\n", CS, new_pc, opcode);
op = op_table[((opcode >> opcode_shift) | op_32) & opcode_mask];
uop_STORE_PTR_IMM(ir, &cpu_state.pc, op_pc);
uop_STORE_PTR_IMM(ir, &cpu_state.oldpc, old_pc);
uop_STORE_PTR_IMM(ir, &cpu_state.op32, op_32);
uop_STORE_PTR_IMM(ir, &cpu_state.ea_seg, (uintptr_t)&_ds);
uop_STORE_PTR_IMM_8(ir, &cpu_state.ssegs, 0);
uop_LOAD_FUNC_ARG_IMM(ir, 0, fetchdat);
uop_CALL_INSTRUCTION_FUNC(ir, op);
//codegen_block_ins++;
block->ins++;
if (block->ins >= 50)
CPU_BLOCK_END();
// addbyte(0xE8); /*CALL*/
// addlong(((uint8_t *)codegen_debug - (uint8_t *)(&block->data[block_pos + 4])));
codegen_endpc = (cs + cpu_state.pc) + 8;
}