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fix(cpu): properly decode THUMB PUSH and POP at comptime

This commit is contained in:
Rekai Nyangadzayi Musuka 2022-10-21 05:12:06 -03:00
parent 1ac193c506
commit 980e4ff5dd
2 changed files with 3 additions and 3 deletions
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4
src/cpu.zig
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@ -394,8 +394,8 @@ fn thumbPopulate() [0x400]ThumbInstrFn {
}
if (i >> 6 & 0xF == 0b1011 and i >> 3 & 0x3 == 0b10) {
const L = i >> 11 & 1 == 1;
const R = i >> 8 & 1 == 1;
const L = i >> 5 & 1 == 1;
const R = i >> 2 & 1 == 1;
lut[i] = format14(L, R);
}

2
src/cpu/thumb/format14.zig
View File

@ -44,7 +44,7 @@ pub fn format14(comptime L: bool, comptime R: bool) InstrFn {
}
}
cpu.r[13] = address;
cpu.r[13] = address + if (!L) 4 else 0;
}
}.inner;
}