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add basic breakpoint support

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This commit is contained in:
Ash Wolf
2019-12-19 17:40:49 +00:00
parent 883197000d
commit e96c438003
5 changed files with 100 additions and 10 deletions
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18
WindCore/emu.cpp
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@ -4,7 +4,7 @@
#include <time.h>
//#define INCLUDE_BANK1
#define INCLUDE_BANK1
Emu::Emu() {
}
@ -184,7 +184,7 @@ void Emu::writeReg32(uint32_t reg, uint32_t value) {
uint32_t Emu::readPhys8(uint32_t physAddress) {
uint32_t result = 0xFF;
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0)
result = ROM[physAddress & 0xFFFFFF];
else if (region == 0x80 && physAddress <= 0x80000FFF)
@ -207,7 +207,7 @@ uint32_t Emu::readPhys8(uint32_t physAddress) {
}
uint32_t Emu::readPhys16(uint32_t physAddress) {
uint32_t result = 0xFFFFFFFF;
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0)
LOAD_16LE(result, physAddress & 0xFFFFFF, ROM);
else if (region == 0xC0)
@ -228,7 +228,7 @@ uint32_t Emu::readPhys16(uint32_t physAddress) {
}
uint32_t Emu::readPhys32(uint32_t physAddress) {
uint32_t result = 0xFFFFFFFF;
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0)
LOAD_32LE(result, physAddress & 0xFFFFFF, ROM);
else if (region == 0x80 && physAddress <= 0x80000FFF)
@ -251,7 +251,7 @@ uint32_t Emu::readPhys32(uint32_t physAddress) {
}
void Emu::writePhys8(uint32_t physAddress, uint8_t value) {
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0xC0)
MemoryBlockC0[physAddress & MemoryBlockMask] = (uint8_t)value;
#ifdef INCLUDE_BANK1
@ -270,7 +270,7 @@ void Emu::writePhys8(uint32_t physAddress, uint8_t value) {
// printf("<%08x> unmapped write8 addr p:%08x :: %02x\n", cpu.gprs[ARM_PC] - 4, physAddress, value);
}
void Emu::writePhys16(uint32_t physAddress, uint16_t value) {
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0xC0)
STORE_16LE(value, physAddress & MemoryBlockMask, MemoryBlockC0);
#ifdef INCLUDE_BANK1
@ -287,7 +287,7 @@ void Emu::writePhys16(uint32_t physAddress, uint16_t value) {
// printf("<%08x> unmapped write16 addr p:%08x :: %04x\n", cpu.gprs[ARM_PC] - 4, physAddress, value);
}
void Emu::writePhys32(uint32_t physAddress, uint32_t value) {
uint8_t region = (physAddress >> 24) & 0xF8;
uint8_t region = (physAddress >> 24) & 0xF1;
if (region == 0xC0)
STORE_32LE(value, physAddress & MemoryBlockMask, MemoryBlockC0);
#ifdef INCLUDE_BANK1
@ -556,6 +556,10 @@ void Emu::executeUntil(int64_t cycles) {
uint32_t phys_pc = virtToPhys(pc);
debugPC(phys_pc);
ARMRun(&cpu);
uint32_t new_pc = cpu.gprs[ARM_PC] - 4;
if (_breakpoints.find(new_pc) != _breakpoints.end())
return;
}
}
}

4
WindCore/emu.h
View File

@ -1,6 +1,7 @@
#pragma once
#include "arm.h"
#include "wind_hw.h"
#include <unordered_set>
class Emu {
uint8_t ROM[0x1000000];
@ -28,6 +29,8 @@ class Emu {
UART uart1, uart2;
bool asleep = false;
std::unordered_set<uint32_t> _breakpoints;
struct ARMCore cpu;
inline bool isMMU() {
@ -84,4 +87,5 @@ public:
void executeUntil(int64_t cycles);
int64_t currentCycles() const { return cpu.cycles; }
uint32_t getGPR(int index) const { return cpu.gprs[index]; }
std::unordered_set<uint32_t> &breakpoints() { return _breakpoints; }
};