uint8_t debug_read_byte(uint32_t address) {
uint8_t *ptr, value = 0;
address &= 0xFFFFFF;
if (address < 0xE00000) {
if ((ptr = phys_mem_ptr(address, 1))) {
value = *ptr;
}
} else {
value = debug_port_read_byte(mmio_range(address)<<12 | addr_range(address));
}
if (debugger.data.block[address]) {
disasmHighlight.hit_read_breakpoint = debugger.data.block[address] & DBG_READ_BREAKPOINT;
disasmHighlight.hit_write_breakpoint = debugger.data.block[address] & DBG_WRITE_BREAKPOINT;
disasmHighlight.hit_exec_breakpoint = debugger.data.block[address] & DBG_EXEC_BREAKPOINT;
disasmHighlight.hit_run_breakpoint = debugger.data.block[address] & DBG_RUN_UNTIL_BREAKPOINT;
}
if (cpu.registers.PC == address) {
disasmHighlight.hit_pc = true;
}
return value;
}
void debug_write_byte(uint32_t address, uint8_t value) {
uint8_t *ptr;
address &= 0xFFFFFF;
if (address < 0xE00000) {
if ((ptr = phys_mem_ptr(address, 1))) {
*ptr = value;
}
} else {
debug_port_write_byte(mmio_range(address)<<12 | addr_range(address), value);
}
}
void *virt_mem_ptr(uint32_t addr, uint32_t size) {
// Note: this is not guaranteed to be correct when range crosses page boundary
return (void *)(intptr_t)phys_mem_ptr(mmu_translate(addr, false, NULL, NULL), size);
}
/* Proper USB emulation should really be a thing at some point :P */
bool sendVariableLink(const char *var_name) {
FILE *file;
uint8_t tmp_buf[0x80];
uint8_t var_size_low,
var_size_high,
var_type,
var_arc;
uint8_t *run_asm_safe = phys_mem_ptr(safe_ram_loc, 1),
*cxCurApp = phys_mem_ptr(0xD007E0, 1),
*op1 = phys_mem_ptr(0xD005F8, 1),
*var_ptr;
uint16_t var_size;
const size_t h_size = sizeof(header_data);
const size_t op_size = 9;
/* Return if we are at an error menu */
if(*cxCurApp == 0x52) {
return false;
}
file = fopen_utf8(var_name,"rb");
if (!file) return false;
if (fread(tmp_buf, 1, h_size, file) != h_size) goto r_err;
if (memcmp(tmp_buf, header_data, h_size)) goto r_err;
if (fseek(file, 0x48, 0)) goto r_err;
if (fread(&var_size_low, 1, 1, file) != 1) goto r_err;
if (fread(&var_size_high, 1, 1, file) != 1) goto r_err;
if (fseek(file, 0x3B, 0)) goto r_err;
if (fread(&var_type, 1, 1, file) != 1) goto r_err;
if (fseek(file, 0x45, 0)) goto r_err;
if (fread(&var_arc, 1, 1, file) != 1) goto r_err;
cpu.halted = cpu.IEF_wait = 0;
cpu.registers.PC = safe_ram_loc;
memcpy(run_asm_safe, jforcegraph, sizeof(jforcegraph));
cycle_count_delta = -5000000;
cpu_execute();
if (fseek(file, 0x3B, 0)) goto r_err;
if (fread(op1, 1, op_size, file) != op_size) goto r_err;
cpu.halted = cpu.IEF_wait = 0;
cpu.registers.PC = safe_ram_loc;
run_asm_safe[0] = 0x21;
run_asm_safe[1] = var_size_low;
run_asm_safe[2] = var_size_high;
run_asm_safe[3] = 0x00;
run_asm_safe[4] = 0x3E;
run_asm_safe[5] = var_type;
memcpy(&run_asm_safe[6], pgrm_loader, sizeof(pgrm_loader));
cycle_count_delta = -10000000;
cpu_execute();
var_ptr = phys_mem_ptr((run_asm_safe[0]) |
(run_asm_safe[1] << 8) |
(run_asm_safe[2] << 16), 1);
var_size = (var_size_high << 8) | var_size_low;
if (fseek(file, 0x4A, 0)) goto r_err;
if (fread(var_ptr, 1, var_size, file) != var_size) goto r_err;
if (var_arc == 0x80) {
cpu.halted = cpu.IEF_wait = 0;
cpu.registers.PC = safe_ram_loc;
memcpy(run_asm_safe, archivevar, sizeof(archivevar));
cycle_count_delta = -1000000;
cpu_execute();
}
cpu.halted = cpu.IEF_wait = 0;
cpu.registers.PC = safe_ram_loc;
memcpy(run_asm_safe, jforcehome, sizeof(jforcehome));
cycle_count_delta = -5000000;
cpu_execute();
return !fclose(file);
r_err:
fclose(file);
return false;
}
static uint32_t get_ptr(uint32_t address) {
return *phys_mem_ptr(address, 1)
| *phys_mem_ptr(address + 1, 1) << 8
| *phys_mem_ptr(address + 2, 1) << 16;
}