6502/PLASMA
1
0
Fork 0
mirror of https://github.com/dschmenk/PLASMA.git synced 2024-06-01 03:41:34 +00:00
Code Issues Projects Releases Wiki Activity

Fix 16 bit VM calls from AUX mem

Browse Source
This commit is contained in:
David Schmenk 2024-01-27 09:38:25 -08:00
parent ff7c35deb9
commit ed295b0599
4 changed files with 9 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

BIN
images/apple/PLASMA-2.1-INST.po
View File

Binary file not shown.

BIN
images/apple/PLASMA-2.1-SYS.po
View File

Binary file not shown.

BIN
images/apple/PLASMA-2.1.po
View File

Binary file not shown.

20
src/vmsrc/apple/plvm802.s
View File

@ -1567,6 +1567,7 @@ EMUSTK STA TMP
SEC
ADC IP
STA IP
JSR PUSHVM16 ; SAVE CURRENT VM16 RETURN ADDRESS
LDA (TMP) ; CHECK IF FIRST OPCODE IS JSR TO $XXDX
AND #$F3FF
CMP #$D020
@ -1577,8 +1578,7 @@ EMUSTK STA TMP
BEQ CALL16
CMP #$03DC
BEQ XCALL16
+ JSR PUSHVM16 ; SAVE CURRENT VM16 RETURN ADDRESS
STZ VM16RETX ; CLEAR RETURN ADDRESS
+ STZ VM16RETX ; CLEAR RETURN ADDRESS
STZ VM16RETIP
SEC ; SWITCH TO EMULATION MODE
XCE
@ -1635,8 +1635,7 @@ EMUSTK STA TMP
;*
;* QUICK CALL TO VM16 FUNCTION
;*
CALL16 JSR PUSHVM16
LDX OPPAGE
CALL16 LDX OPPAGE
STX VM16RETX
LDA IP
STA VM16RETIP
@ -1646,15 +1645,14 @@ CALL16 JSR PUSHVM16
STA IP
LDX #>OPTBL ; MAKE SURE WE'RE INDEXING THE RIGHT TABLE
STX OPPAGE
STX ALTRDOFF
;STX ALTRDOFF
LDY #$00
JMP FETCHOP
XCALL16 JSR PUSHVM16
LDX OPPAGE
XCALL16 LDX OPPAGE
STX VM16RETX
LDA IP
STA VM16RETIP
STX ALTRDOFF
;STX ALTRDOFF
LDY #$03
LDA (TMP),Y ; BYTECODE ADDRESS FOLLOWS JSR IINTERP IN DEF STRUCTURE
STA IP
@ -1679,6 +1677,8 @@ EMUSTKX STA TMP
SEC
ADC IP
STA IP
JSR PUSHVM16 ; SAVE CURRENT VM16 RETURN ADDRESS
STX ALTRDOFF
LDA (TMP) ; CHECK IF FIRST OPCODE IS JSR TO $XXDX
AND #$F0FF
CMP #$D020
@ -1689,8 +1689,7 @@ EMUSTKX STA TMP
BEQ CALL16
CMP #$03DC
BEQ XCALL16
+ JSR PUSHVM16 ; SAVE CURRENT VM16 RETURN ADDRESS
STZ VM16RETX ; CLEAR RETURN ADDRESS
+ STZ VM16RETX ; CLEAR RETURN ADDRESS
STZ VM16RETIP
SEC ; SWITCH TO EMULATION MODE
XCE
@ -1713,7 +1712,6 @@ EMUSTKX STA TMP
CPY #ESTKSZ/2
BNE -
+ PEI (IP) ; SAVE INSTRUCTION POINTER
STA ALTRDOFF
LDA PSR
PHA
PLP