oasm: Add encoding logic for "SUB" instruction

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/usr.bin/oasm/parse.c b/usr.bin/oasm/parse.c
index 6851935..cefe812 100644
--- a/usr.bin/oasm/parse.c
+++ b/usr.bin/oasm/parse.c
@@ -109,6 +109,7 @@ parse_reg(struct oasm_state *state, struct oasm_token *tok)
     case TT_DEC:
     case TT_INC:
     case TT_ADD:
+    case TT_SUB:
         state->last = tok->type;
         break;
     default:
@@ -152,6 +153,10 @@ parse_tok(struct oasm_state *state, struct oasm_token *tok)
         state->last = tok->type;
         emit_osxm64(&emit_state, tok);
         break;
+    case TT_SUB:
+        state->last = tok->type;
+        emit_osxm64(&emit_state, tok);
+        break;
     case TT_DEC:
     case TT_INC:
         state->last = tok->type;