panzone/sm-vita
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Small change to facilitate debugging

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Snesrev
2023-03-11 14:17:03 +01:00
parent ff343e46c0
commit 77185ae205
2 changed files with 8 additions and 5 deletions
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11
src/snes/cpu.c
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@@ -5,10 +5,10 @@
#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>
#include <assert.h>
#include "cpu.h"
#include "snes.h"
#include "../types.h"
#include "../variables.h"
static const int cyclesPerOpcode[256] = {
7, 6, 7, 4, 5, 3, 5, 6, 3, 2, 2, 4, 6, 4, 6, 5,
@@ -721,18 +721,21 @@ static void cpu_trb(Cpu* cpu, uint32_t low, uint32_t high) {
}
int CpuOpcodeHook(uint32_t addr);
extern int CpuOpcodeHook(uint32 addr);
uint32_t pc_hist[8], pc_hist_ctr;
uint32_t pc_bp = 0;
static void cpu_doOpcode(Cpu* cpu, uint8_t opcode) {
pc_hist[pc_hist_ctr] = cpu->k << 16 | cpu->pc;
uint32 cur_pc = ((cpu->k << 16) | cpu->pc - 1);
pc_hist[pc_hist_ctr] = cur_pc;
pc_hist_ctr = (pc_hist_ctr + 1) & 7;
if (((cpu->k << 16) | cpu->pc - 1) == pc_bp) {
if (cur_pc == pc_bp) {
opcode += 0;
}
restart:
switch(opcode) {
case 0x00: { // brk imp