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fix: reverse the endianness of cpu registers

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This commit is contained in:
Rekai Nyangadzayi Musuka 2022-12-15 06:27:21 -04:00
parent 8a58251ef6
commit 51082186d7
1 changed files with 2 additions and 5 deletions
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7
src/Packet.zig
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@ -57,19 +57,16 @@ pub fn parse(self: *Self, allocator: Allocator, emu: Emulator) !String {
return .{ .alloc = try std.fmt.allocPrint(allocator, "T{x:0>2}thread:1;", .{@enumToInt(ret)}) }; return .{ .alloc = try std.fmt.allocPrint(allocator, "T{x:0>2}thread:1;", .{@enumToInt(ret)}) };
}, },
'g' => { 'g' => {
// TODO: Actually reference GBA Registers
const r = emu.registers(); const r = emu.registers();
const cpsr = emu.cpsr(); const cpsr = emu.cpsr();
const char_len = 2; const reg_len = @sizeOf(u32) * 2; // Every byte is represented by 2 characters
const reg_len = @sizeOf(u32) * char_len; // Every byte is represented by 2 characters
const ret = try allocator.alloc(u8, r.len * reg_len + reg_len); // r0 -> r15 + CPSR const ret = try allocator.alloc(u8, r.len * reg_len + reg_len); // r0 -> r15 + CPSR
{ {
var i: u32 = 0; var i: u32 = 0;
while (i < r.len + 1) : (i += 1) { while (i < r.len + 1) : (i += 1) {
const reg: u32 = if (i < r.len) r[i] else cpsr; const reg: u32 = @byteSwap(if (i < r.len) r[i] else cpsr); // Seems like GDB expects this
// bufPrintIntToSlice writes to the provided slice, which is all we want from this // bufPrintIntToSlice writes to the provided slice, which is all we want from this
// consequentially, we ignore the slice it returns since it just references the slice // consequentially, we ignore the slice it returns since it just references the slice