AAM and AAD instruction fixes, fixes #2551.

2022-08-01 23:40:11 +02:00
parent 9b37a1a0eb
commit 754058e2e5
6 changed files with 31 additions and 6 deletions
--- a/src/cpu/x86_ops_bcd.h
+++ b/src/cpu/x86_ops_bcd.h
@@ -31,7 +31,14 @@ static int opAAD(uint32_t fetchdat)
 static int opAAM(uint32_t fetchdat)
 {
        int base = getbytef();
-        if (!base || !cpu_isintel) base = 10;
+
+	if (base == 0) {
+		x86de(NULL, 0);
+		return 1;
+	}
+
+        if (!cpu_isintel) base = 10;
+
        AH = AL / base;
        AL %= base;
        setznp16(AX);