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chore: mgba log now supports printing THUMB instructions

This commit is contained in:
Rekai Nyangadzayi Musuka 2022-01-17 07:18:44 -04:00
parent 1915d98bdd
commit 3037407ebe
1 changed files with 5 additions and 1 deletions
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6
src/cpu.zig
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@ -57,9 +57,12 @@ pub const Arm7tdmi = struct {
pub fn step(self: *Self) u64 {
if (self.cpsr.t.read()) {
const opcode = self.thumbFetch();
// self.mgbaLog(@as(u32, opcode));
thumb_lut[thumbIdx(opcode)](self, self.bus, opcode);
} else {
const opcode = self.fetch();
// self.mgbaLog(opcode);
if (checkCond(self.cpsr, @truncate(u4, opcode >> 28))) {
arm_lut[armIdx(opcode)](self, self.bus, opcode);
@ -109,7 +112,8 @@ pub const Arm7tdmi = struct {
const cpsr = self.cpsr.raw;
nosuspend stderr.print("{X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} cpsr: {X:0>8} | {X:0>8}:\n", .{ r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, cpsr, opcode }) catch return;
nosuspend stderr.print("{X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} {X:0>8} cpsr: {X:0>8} | ", .{ r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, cpsr }) catch return;
nosuspend if (self.cpsr.t.read()) stderr.print("{X:0>4}:\n", .{@truncate(u16, opcode)}) catch return else stderr.print("{X:0>8}:\n", .{opcode}) catch return;
}
};