267 lines
5.0 KiB
ArmAsm
267 lines
5.0 KiB
ArmAsm
* XC
|
|
* TR
|
|
* TR ADR
|
|
*
|
|
|
|
mx %11
|
|
org $2000
|
|
lst off
|
|
|
|
COUT = $fded
|
|
|
|
* GS Port Driver Bios
|
|
* written by Andy Nicholas on July 26, 1987
|
|
*
|
|
* History:
|
|
*
|
|
* 11/07/89 AMW
|
|
* 1. History section added
|
|
* 2. Checked and or modified for LLUCE
|
|
* 3. Section titles added
|
|
*
|
|
* 11/10/89 AMW
|
|
* Added interrupt buffers
|
|
*--------------------------
|
|
* rel
|
|
*SLOT KBD 'Slot to assemble for (1/2)'
|
|
SLOT = 2
|
|
N0 = SLOT*16
|
|
CN = SLOT!$C0
|
|
SLTADR = SLOT!$C0*256
|
|
FLAG = SLOT-1
|
|
|
|
CR = $0d
|
|
LF = $0a
|
|
|
|
jsr INIT
|
|
jsr SETSPEED
|
|
ldx #>strSA
|
|
ldy #<strSA
|
|
jsr sendSTRING
|
|
jsr receiveSTRING
|
|
|
|
ldx #>strPL
|
|
ldy #<strPL
|
|
jsr sendSTRING
|
|
jsr receiveSTRING
|
|
rts
|
|
|
|
receiveSTRING
|
|
]lp jsr INP
|
|
beq receive9
|
|
cmp #CR
|
|
beq receive9
|
|
ora #$80
|
|
jsr COUT
|
|
bra ]lp
|
|
receive9 rts
|
|
|
|
sendSTRING sty sendstr1+1
|
|
stx sendstr1+2
|
|
|
|
ldx #0
|
|
sendstr1 lda $bdbd,x
|
|
beq sendstr2
|
|
jsr OUT
|
|
inx
|
|
bne sendstr1
|
|
|
|
sendstr2 lda #CR
|
|
jsr OUT
|
|
rts
|
|
|
|
strSA asc 'SA'00
|
|
strPL asc 'PL'00
|
|
|
|
*-------------------------------
|
|
*-------------------------------
|
|
|
|
MODEM DB N0 ;serial card slot * 16
|
|
INITSPD DB 0 ;init speed for modem
|
|
CALLSPD DB 0 ;Speed of current call
|
|
|
|
BYTCNT DB 0,0,0
|
|
|
|
DOINIT JMP SLTADR
|
|
DOREAD JMP SLTADR
|
|
DOWRITE JMP SLTADR
|
|
DOSTATUS JMP SLTADR
|
|
DOEXT JMP SLTADR
|
|
|
|
* init the serial port pascal locations
|
|
*-------------------------------
|
|
|
|
INIT LDA SLTADR+$D ;get init address
|
|
STA DOINIT+1
|
|
LDA SLTADR+$E ;get read address
|
|
STA DOREAD+1
|
|
LDA SLTADR+$F ;get write address
|
|
STA DOWRITE+1
|
|
LDA SLTADR+$10 ;get status address
|
|
STA DOSTATUS+1
|
|
LDA SLTADR+$12
|
|
STA DOEXT+1
|
|
|
|
RTS
|
|
|
|
* input data
|
|
*-------------------------------
|
|
|
|
INP PHX ;Save x
|
|
PHY
|
|
LDX #CN ;are we ready?
|
|
LDY #N0
|
|
LDA #1
|
|
JSR DOSTATUS
|
|
BCC :INP2 ;nope, exit
|
|
|
|
LDX #CN ;yes, read
|
|
LDY #N0
|
|
JSR DOREAD
|
|
|
|
SEC
|
|
:INP1 PLY
|
|
PLX ;Restore & return
|
|
RTS
|
|
|
|
:INP2 LDA #0
|
|
BRA :INP1
|
|
|
|
* output data
|
|
*-------------------------------
|
|
|
|
OUT PHX ;Save x
|
|
PHY ;Save y
|
|
PHA ;Save a
|
|
|
|
:OUT1 LDX #CN ;ready for send?
|
|
LDY #N0
|
|
LDA #0
|
|
JSR DOSTATUS
|
|
BCC :OUT1 ;nope
|
|
|
|
PLA ;Get a
|
|
LDX #CN
|
|
LDY #N0
|
|
JSR DOWRITE ;send it
|
|
|
|
PLY ;Get y
|
|
PLX ;Get x
|
|
RTS
|
|
|
|
* wait routine
|
|
*-------------------------------
|
|
|
|
WAIT SEC ;from apple ][+ ref man - pg 147
|
|
:WAIT2 PHA
|
|
:WAIT3 SBC #1
|
|
BNE :WAIT3
|
|
PLA
|
|
SBC #1
|
|
BNE :WAIT2
|
|
RTS
|
|
|
|
* set the rs-232 speed [speed offset in Y]
|
|
*
|
|
* 0 = 300 baud
|
|
* 1 = 1200 baud
|
|
* 2 = 2400 baud
|
|
* 3 = 4800 baud
|
|
* 4 = 9600 baud
|
|
* 5 = 19200 baud
|
|
*-------------------------------
|
|
|
|
SETSPEED LDX #<B4800
|
|
LDA #>B4800
|
|
|
|
:SETBAUD STX :BAUDRD+1
|
|
STA :BAUDRD+2
|
|
|
|
LDX #CN
|
|
LDY #N0
|
|
JSR DOINIT
|
|
|
|
LDX #0
|
|
:BAUDRD LDA -1,X
|
|
BEQ :FINISH
|
|
JSR OUT
|
|
INX
|
|
BRA :BAUDRD
|
|
|
|
:FINISH LDX #0
|
|
:LOOP LDA PORTINIT,X
|
|
BEQ :DONE
|
|
JSR OUT
|
|
INX
|
|
BRA :LOOP
|
|
|
|
:DONE LDA #<OUT_BUF
|
|
LDX #>OUT_BUF
|
|
LDY #0
|
|
JSR DOEXT
|
|
|
|
RTS
|
|
|
|
PORTINIT DB 1
|
|
ASC '0D' ;8 bits
|
|
DB 1
|
|
ASC '0P' ;no parity
|
|
* db 1
|
|
* asc '0N'
|
|
db 1
|
|
asc 'LD'
|
|
db 1
|
|
asc 'ME'
|
|
DB 1
|
|
ASC 'AD' ;auto-tabbing
|
|
DB 1
|
|
ASC 'XD' ;no xoff recognition
|
|
DB 1
|
|
ASC 'FD' ;no find keyboard
|
|
DB 1
|
|
ASC 'CD' ;no column overflow
|
|
DB 1
|
|
ASC 'ED' ;echo disabled
|
|
* DB 1
|
|
* ASC 'MD' ;no lf masking
|
|
DB 1
|
|
ASC 'BE' ;buffering enabled
|
|
DB 1
|
|
ASC 'Z'
|
|
DB 0 ;no more control characters
|
|
|
|
B4800 DB 1
|
|
ASC '12B'00 ;accept 4800 Baud
|
|
|
|
*-------------------------------
|
|
|
|
OUT_BUF DB 4 ;Parameters to set the
|
|
DB $13 ;Output buffer
|
|
DA 0
|
|
ADRL BUFFER ;Buffer it where
|
|
DA 2 ;Buffer 2 bytes
|
|
|
|
*-------------------------------
|
|
|
|
CARRLIST DB 3 ;Parameter list for
|
|
DB 6 ;detecting carrier drop
|
|
DA 0
|
|
CARRBITS DA 0 ;Carrier status here
|
|
|
|
*-------------------------------
|
|
|
|
DTRLST DB 3 ;Parameter list for
|
|
DB $B ;setting DTR
|
|
DA 0
|
|
DTRSTATE DA 0 ;Bit 7 affects DTR
|
|
|
|
*-------------------------------
|
|
|
|
FLUSHLST DB 2 ;parameter list for flushing input queue
|
|
DB $14
|
|
DA 0
|
|
|
|
*-------------------------------
|
|
|
|
BUFFER ds 256
|