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feat(cpu): implement format 10 THUMB instructions

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-02-01 17:56:11 -04:00
parent 85927a943f
commit ca41f6a85c
2 changed files with 32 additions and 0 deletions
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8
src/cpu.zig
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@@ -27,6 +27,7 @@ const format4 = @import("cpu/thumb/format4.zig").format4;
const format5 = @import("cpu/thumb/format5.zig").format5;
const format6 = @import("cpu/thumb/format6.zig").format6;
const format9 = @import("cpu/thumb/format9.zig").format9;
const format10 = @import("cpu/thumb/format10.zig").format10;
const format12 = @import("cpu/thumb/format12.zig").format12;
const format13 = @import("cpu/thumb/format13.zig").format13;
const format14 = @import("cpu/thumb/format14.zig").format14;
@@ -373,6 +374,13 @@ fn thumbPopulate() [0x400]ThumbInstrFn {
lut[i] = format6(rd);
}
if (i >> 6 & 0xF == 0b1000) {
const L = i >> 5 & 1 == 1;
const offset = i & 0x1F;
lut[i] = format10(L, offset);
}
if (i >> 7 & 0x7 == 0b011) {
const B = i >> 6 & 1 == 1;
const L = i >> 5 & 1 == 1;