From 85dae5e1d75f30898ebee7fee5597aa9587f3cea Mon Sep 17 00:00:00 2001
From: Rekai Musuka <rekai@musuka.dev>
Date: Tue, 18 Jan 2022 14:27:07 -0400
Subject: [PATCH] feat(cpu): implement EOR

---
 src/cpu/arm/data_processing.zig | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/cpu/arm/data_processing.zig b/src/cpu/arm/data_processing.zig
index 5c167d9..01e6d22 100644
--- a/src/cpu/arm/data_processing.zig
+++ b/src/cpu/arm/data_processing.zig
@@ -33,6 +33,17 @@ pub fn dataProcessing(comptime I: bool, comptime S: bool, comptime instrKind: u4
                         // C set by Barrel Shifter, V is unaffected
                     }
                 },
+                0x1 => {
+                    // EOR
+                    const result = op1 ^ op2;
+                    cpu.r[rd] = result;
+
+                    if (S and rd != 0xF) {
+                        cpu.cpsr.n.write(result >> 31 & 1 == 1);
+                        cpu.cpsr.z.write(result == 0);
+                        // C set by Barrel Shifter, V is unaffected
+                    }
+                },
                 0x2 => {
                     // SUB
                     const result = op1 -% op2;