From 0d5a742b653870e742b3565389743bbccb39851d Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sun, 27 Jul 2025 23:25:08 -0400
Subject: oasm: Introduce XOR mnemonic

Implement mnemonic for the XOR instruction:

--
xor x4, #1   ! x4 = x4 ^ 1
--

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 usr.bin/oasm/lex.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'usr.bin/oasm/lex.c')

diff --git a/usr.bin/oasm/lex.c b/usr.bin/oasm/lex.c
index 4c402be..ce97400 100644
--- a/usr.bin/oasm/lex.c
+++ b/usr.bin/oasm/lex.c
@@ -56,6 +56,7 @@ static char putback = '\0';
 #define S_IMN_MROQ "mroq"
 #define S_IMN_AND  "and"
 #define S_IMN_OR   "or"
+#define S_IMN_XOR  "xor"
 
 /* Instruction length */
 #define OSMX64_INST_LEN 4
@@ -212,6 +213,8 @@ token_arith(char *p)
         return TT_HLT;
     } else if (strcmp(p, S_IMN_MUL) == 0) {
         return TT_MUL;
+    } else if (strcmp(p, S_IMN_XOR) == 0) {
+        return TT_XOR;
     }
 
     return TT_UNKNOWN;
-- 
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