Fix MUL opcode

2025-08-07 18:25:03 +00:00 · 2017-12-03 20:17:42 -08:00
parent 415e284066
commit f1bdedf938
1 changed files with 5 additions and 5 deletions
--- a/src/vmsrc/plvm802.s
+++ b/src/vmsrc/plvm802.s
@@ -7,7 +7,7 @@
 ;**********************************************************
        !CPU    65816
 SELFMODIFY  =   0
-DEBUG   =       1
+DEBUG   =       0
 ;*
 ;* THE DEFAULT CPU MODE FOR EXECUTING OPCODES IS:
 ;*   16 BIT A/M
@@ -523,11 +523,11 @@ MUL     LDX     #$10
        EOR     #$FFFF
        STA     TMP
        LDA     #$0000
-MULLP   ASL     TMP             ;LSR     TMP             ; MULTPLR
+MULLP   ASL
+        ASL     TMP             ; MULTPLR
        BCS     +
        ADC     TOS,S           ; MULTPLD
-+       ASL                     ;ASL     TOS,S           ; MULTPLD
-        DEX
+       DEX
        BNE     MULLP
        STA     NOS,S           ; PROD
        JMP     DROP