chore(cpu): iron out some false assumptions

2022-01-01 03:41:50 -06:00
parent c660ca8922
commit 92a06e49c3
4 changed files with 128 additions and 36 deletions
--- a/src/cpu/half_signed_data_transfer.zig
+++ b/src/cpu/half_signed_data_transfer.zig
@@ -40,12 +40,12 @@ pub fn comptimeHalfSignedDataTransfer(comptime P: bool, comptime U: bool, compti
                    0b10 => {
                        // LDRSB
                        const byte = bus.readByte(address);
-                        cpu.r[rd] = util.u32_sign_extend(@as(u32, byte), 8);
+                        cpu.r[rd] = util.u32SignExtend(8, @as(u32, byte));
                    },
                    0b11 => {
                        // LDRSH
                        const halfword = bus.readHalfWord(address);
-                        cpu.r[rd] = util.u32_sign_extend(@as(u32, halfword), 16);
+                        cpu.r[rd] = util.u32SignExtend(16, @as(u32, halfword));
                    },
                }
            } else {