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Fix MUL opcode

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This commit is contained in:
Dave Schmenk 2017-12-03 20:17:42 -08:00
parent 415e284066
commit f1bdedf938
1 changed files with 5 additions and 5 deletions
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10
src/vmsrc/plvm802.s
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@ -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
@ -1819,7 +1819,7 @@ STEP STX TMPL
XBA
LDA $101,X
LDX TMPH
JSR PRWORD
JSR PRWORD
BRA +++
++ LDX TMPH
LDA #' '