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feat(cpu): implement THUMB format11

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This commit is contained in:
Rekai Nyangadzayi Musuka
2022-10-21 05:12:12 -03:00
parent 011d2f2f2a
commit 523b9d2736
2 changed files with 26 additions and 2 deletions
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7
src/cpu.zig
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@@ -31,6 +31,7 @@ const format6 = @import("cpu/thumb/format6.zig").format6;
const format78 = @import("cpu/thumb/format78.zig").format78;
const format9 = @import("cpu/thumb/format9.zig").format9;
const format10 = @import("cpu/thumb/format10.zig").format10;
const format11 = @import("cpu/thumb/format11.zig").format11;
const format12 = @import("cpu/thumb/format12.zig").format12;
const format13 = @import("cpu/thumb/format13.zig").format13;
const format14 = @import("cpu/thumb/format14.zig").format14;
@@ -486,8 +487,10 @@ fn thumbPopulate() [0x400]ThumbInstrFn {
lut[i] = format10(L, offset);
} else if (i >> 6 & 0xF == 0b1001) {
// Format 11 | SP-relative load / store
lut[i] = thumbUndefined;
const L = i >> 5 & 1 == 1;
const rd = i >> 2 & 0x3;
lut[i] = format11(L, rd);
} else if (i >> 6 & 0xF == 0b1010) {
const isSP = i >> 5 & 1 == 1;
const rd = i >> 2 & 0x7;