fix: properly decode format 11 instructions

2022-02-12 03:13:38 -04:00
parent b93bd53529
commit 783706193b
2 changed files with 5 additions and 5 deletions
--- a/src/cpu.zig
+++ b/src/cpu.zig
@@ -496,7 +496,7 @@ fn thumbPopulate() [0x400]ThumbInstrFn {
                    },
                    0b001 => blk: {
                        const L = i >> 5 & 1 == 1;
-                        const rd = i >> 2 & 0x3;
+                        const rd = i >> 2 & 0x7;
                        break :blk format11(L, rd);
                    },
                    0b010 => blk: {