mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-25 20:33:13 +00:00
88 lines
2.6 KiB
Plaintext
88 lines
2.6 KiB
Plaintext
|
NEW
|
|||
|
|
AUTO 3,1
|
|||
|
|
*--------------------------------------
|
|||
|
|
* PR#slot copy address from OUTVEC,slot to CSW
|
|||
|
|
* PR#Aaddr copy Aaddress into CSW
|
|||
|
|
* PR#slot,Aaddr copy Aaddress into OUTVEC,slot
|
|||
|
|
*
|
|||
|
|
* IN#slot copy address from INVEC,slot to KSW
|
|||
|
|
* IN#Aaddr copy Aaddress into KSW
|
|||
|
|
* IN#slot,Aaddr copy Aaddress into INVEC,slot
|
|||
|
|
*--------------------------------
|
|||
|
|
PR LDA #0
|
|||
|
|
.HS 2C SKIP NEXT LINE
|
|||
|
|
IN LDA #2
|
|||
|
|
PHA SAVE 0 OR 2
|
|||
|
|
ASL
|
|||
|
|
ASL 00 OR 08
|
|||
|
|
ORA VAL.LB +SLOT
|
|||
|
|
ASL *2
|
|||
|
|
TAX
|
|||
|
|
BIT FBITS WAS SLOT PARAMETER GIVEN?
|
|||
|
|
BVC .1 ...NO
|
|||
|
|
LDA FBITS+1 ...YES, WAS A$ PARM ALSO?
|
|||
|
|
BMI .2 ...YES, SO UPDATE TABLE
|
|||
|
|
TXA Check for "PR#0"
|
|||
|
|
BEQ .4 ...yes, so call MON.SETVID directly
|
|||
|
|
LDA OUTVEC,X ...NO, ONLY SLOT
|
|||
|
|
STA VAL.A SO GET VALUE FROM TABLE
|
|||
|
|
LDA OUTVEC+1,X
|
|||
|
|
STA VAL.A+1
|
|||
|
|
.1 JSR CHECK.IO.DRIVER
|
|||
|
|
BCS .3 ...NOT VALID DRIVER
|
|||
|
|
PLA POP SAVED 0 OR 2
|
|||
|
|
TAX
|
|||
|
|
LDA VAL.A INSTALL HOOK FOR DRIVER
|
|||
|
|
STA CSWL,X
|
|||
|
|
LDA VAL.A+1
|
|||
|
|
STA CSWH,X
|
|||
|
|
RTS
|
|||
|
|
*---ENTER NEW VALUE IN TABLE-----
|
|||
|
|
.2 JSR CHECK.IO.DRIVER
|
|||
|
|
BCS .3 ...ERROR
|
|||
|
|
PLA POP OFF SAVED 0 OR 2
|
|||
|
|
LDA VAL.A+1 UPDATE TABLE
|
|||
|
|
STA OUTVEC+1,X
|
|||
|
|
LDA VAL.A
|
|||
|
|
STA OUTVEC,X
|
|||
|
|
RTS
|
|||
|
|
.3 PLA POP OFF SAVED 0 OR 2
|
|||
|
|
LDA #$03 "NO DEVICE CONNECTED"
|
|||
|
|
RTS
|
|||
|
|
*--------------------------------
|
|||
|
|
.4 PLA POP OFF SAVED 0 OR 2
|
|||
|
|
JSR MON.SETVID
|
|||
|
|
CLC
|
|||
|
|
RTS
|
|||
|
|
*--------------------------------
|
|||
|
|
CHECK.IO.DRIVER
|
|||
|
|
LDA VAL.A GET DRIVER ADDRESS INTO PNTR
|
|||
|
|
STA DRIVER.PTR
|
|||
|
|
LDA VAL.A+1
|
|||
|
|
STA DRIVER.PTR+1
|
|||
|
|
LDY #0
|
|||
|
|
CMP #$C0 IS IT IN ROM AREA?
|
|||
|
|
BCC .3 ...NO
|
|||
|
|
LDA IO.OFF ...YES, TURN OFF $C800 SPACE
|
|||
|
|
STY RETRY.COUNT
|
|||
|
|
LDA (DRIVER.PTR),Y CHECK FOR ROM PRESENT
|
|||
|
|
CMP #$FF
|
|||
|
|
BEQ .4 ...NOT VALID ROM VALUE
|
|||
|
|
.1 CMP (DRIVER.PTR),Y BETTER NOT CHANGE...
|
|||
|
|
BNE .4 ...WOOPS, NOT ROM
|
|||
|
|
DEC RETRY.COUNT TRY IT 256 TIMES
|
|||
|
|
BNE .1 ...AGAIN
|
|||
|
|
.2 CLC ...REALLY A DRIVER
|
|||
|
|
RTS
|
|||
|
|
*---VERIFY RAM-BASED DRIVER------
|
|||
|
|
.3 LDA (DRIVER.PTR),Y GET FIRST BYTE
|
|||
|
|
CMP #$D8 "CLD" OPCODE?
|
|||
|
|
BEQ .2 ...YES, VALID DRIVER
|
|||
|
|
.4 SEC
|
|||
|
|
RTS
|
|||
|
|
*--------------------------------------
|
|||
|
|
MAN
|
|||
|
|
SAVE usr/src/scmasm.30/sci.s.prin
|
|||
|
|
LOAD usr/src/scmasm.30/scmasm.s
|
|||
|
|
ASM
|