+++ /dev/null
-;
-; Christian Groessler, Dec-2001
-;
-; RS232 routines using the R: device (currently tested with an 850 only)
-;
-; unsigned char __fastcall__ rs232_init (char hacked);
-; unsigned char __fastcall__ rs232_params (unsigned char params, unsigned char parity);
-; unsigned char __fastcall__ rs232_done (void);
-; unsigned char __fastcall__ rs232_get (char* B);
-; unsigned char __fastcall__ rs232_put (char B);
-; unsigned char __fastcall__ rs232_pause (void); [TODO]
-; unsigned char __fastcall__ rs232_unpause (void); [TODO]
-; unsigned char __fastcall__ rs232_status (unsigned char* status,
-; unsigned char* errors); [TODO]
-;
-
- .import findfreeiocb
- .import __do_oserror
- .import fddecusage
- .import fdtoiocb
- .import __inviocb
- .import clriocb
- .import newfd
- .import _close, pushax, popax, popa
- .importzp ptr1, tmp2, tmp3
-
- .export _rs232_init, _rs232_params, _rs232_done, _rs232_get
- .export _rs232_put, _rs232_pause, _rs232_unpause, _rs232_status
-
- .include "atari.inc"
- .include "errno.inc"
- .include "rs232.inc"
-
- .rodata
-
-rdev: .byte "R:", ATEOL, 0
-
- .bss
-
-; receive buffer
-RECVBUF_SZ = 256
-recv_buf: .res RECVBUF_SZ
-
-cm_run: .res 1 ; concurrent mode running?
-
- .data
-
-rshand: .word $ffff
-
- .code
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_init (char hacked);
-; /* Initialize the serial port. The parameter is ignored in the Atari version.
-; * return 0/-1 for OK/Error
-; */
-;
-
-.proc _rs232_init
-
- jsr findfreeiocb
- bne init_err
- txa
- tay ; move iocb # into Y
- lda #3
- sta tmp3 ; name length + 1
- lda #<rdev
- ldx #>rdev
- jsr newfd
- tya
- bcs doopen ; C set: open needed / device not already open
-
- pha
- jsr _rs232_done ;** shut down if started @@@TODO check this out!!
- pla
-
-doopen: tax
- pha
- jsr clriocb
- pla
- tax
- lda #<rdev
- sta ICBAL,x
- lda #>rdev
- sta ICBAH,x
- lda #OPEN
- sta ICCOM,x
-
- lda #$0D ; mode in+out+concurrent
- sta ICAX1,x
- lda #0
- sta ICAX2,x
- sta ICBLL,x ; zap buf len
- sta ICBLH,x
- jsr CIOV
- bmi cioerr1
-
- lda tmp2 ; get fd
- sta rshand
- ldx #0
- stx rshand+1
- txa
- rts
-
-cioerr1:jsr fddecusage ; decrement usage counter of fd as open failed
-
-init_err:
- ldx #0
- lda #RS_ERR_INIT_FAILED
- rts
-
-.endproc ; _rs232_init
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_params (unsigned char params, unsigned char parity);
-;
-; Set communication parameters.
-;
-; params contains baud rate, stop bits and word size
-; parity contains parity
-;
-; 850 manual documents restrictions on the baud rate (not > 300), when not
-; using 8 bit word size. So only 8 bit is currently tested.
-;
-
-.proc _rs232_params
-
- sta tmp2
- lda rshand
- cmp #$ff
- bne work ; work only if initialized
- lda #RS_ERR_NOT_INITIALIZED
- bne done
-work: lda rshand
- ldx #0
- jsr fdtoiocb ; get iocb index into X
- bmi inverr ; shouldn't happen
- tax
-
- ; set handshake lines
-
- lda #34 ; xio 34, set cts, dtr etc
- sta ICCOM,x
- lda #192+48+3 ; DTR on, RTS on, XMT on
- sta ICAX1,x
- lda #0
- sta ICBLL,x
- sta ICBLH,x
- sta ICBAL,x
- sta ICBAH,x
- sta ICAX2,x
- jsr CIOV
- bmi cioerr
-
- ; set baud rate, word size, stop bits and ready monitoring
-
- lda #36 ; xio 36, baud rate
- sta ICCOM,x
- jsr popa ; get parameter
- sta ICAX1,x
- ;ICAX2 = 0, monitor nothing
- jsr CIOV
- bmi cioerr
-
- ; set translation and parity
-
- lda #38 ; xio 38, translation and parity
- sta ICCOM,x
- lda tmp2
- ora #32 ; no translation
- sta ICAX1,x
- jsr CIOV
- bmi cioerr
-
- lda #0
-done: ldx #0
- rts
-
-inverr: jmp __inviocb
-
-.endproc ;_rs232_params
-
-cioerr: jmp __do_oserror
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_done (void);
-; /* Close the port, deinstall the interrupt hander. You MUST call this function
-; * before terminating the program, otherwise the machine may crash later. If
-; * in doubt, install an exit handler using atexit(). The function will do
-; * nothing, if it was already called.
-; */
-;
-
-.proc _rs232_done
-
- lda rshand
- cmp #$ff
- beq done
-work: ldx rshand+1
- jsr pushax
- jsr _close
- pha
- txa
- pha
- ldx #$ff
- stx rshand
- stx rshand+1
- inx
- stx cm_run
- pla
- tax
- pla
-done: rts
-
-.endproc ;rs232_done
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_get (char* B);
-; /* Get a character from the serial port. If no characters are available, the
-; * function will return RS_ERR_NO_DATA, so this is not a fatal error.
-; */
-;
-
-.proc _rs232_get
-
- ldy rshand
- cpy #$ff
- bne work ; work only if initialized
- lda #RS_ERR_NOT_INITIALIZED
- bne nierr
-
-work: sta ptr1
- stx ptr1+1 ; store pointer to received char
-
- lda rshand
- ldx #0
- jsr fdtoiocb
- tax
- lda cm_run ; concurrent mode already running?
- bne go
- jsr ena_cm ; turn on concurrent mode
-
-go: ; check whether there is any input available
-
- lda #STATIS ; status request, returns bytes pending
- sta ICCOM,x
- jsr CIOV
- bmi cioerr ; @@@ error handling
-
- lda DVSTAT+1 ; get byte count pending
- ora DVSTAT+2
- beq nix_da ; no input waiting...
-
- ; input is available: get it!
-
- lda #GETCHR ; get raw bytes
- sta ICCOM,x ; in command code
- lda #0
- sta ICBLL,x
- sta ICBLH,x
- sta ICBAL,x
- sta ICBAH,x
- jsr CIOV ; go get it
- bmi cioerr ; @@@ error handling
-
- ldx #0
- sta (ptr1,x) ; return received byte
- txa
- rts
-
-nierr: ldx #0
- rts
-
-nix_da: lda #RS_ERR_NO_DATA
- ldx #0
- rts
-
-.endproc ;_rs232_get
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_put (char B);
-; /* Send a character via the serial port. There is a transmit buffer, but
-; * transmitting is not done via interrupt. The function returns
-; * RS_ERR_OVERFLOW if there is no space left in the transmit buffer.
-; */
-;
-
-.proc _rs232_put
-
- ldy rshand
- cpy #$ff
- bne work ; work only if initialized
- lda #RS_ERR_NOT_INITIALIZED
- bne nierr
-
-work: pha
- lda rshand
- ldx #0
- jsr fdtoiocb
- tax
- lda cm_run ; concurrent mode already running?
- bne go
- jsr ena_cm ; turn on concurrent mode
-
- ; @@@TODO: check output buffer overflow
-go: lda #PUTCHR ; put raw bytes
- sta ICCOM,x ; in command code
- lda #0
- sta ICBLL,x
- sta ICBLH,x
- sta ICBAL,x
- sta ICBAH,x
- pla ; get the char back
- jsr CIOV ; go do it
- rts
-
-nierr: ldx #0
- rts
-
-.endproc ;_rs232_put
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_pause (void);
-; /* Assert flow control and disable interrupts. */
-;
-
-_rs232_pause:
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_unpause (void);
-; /* Re-enable interrupts and release flow control */
-;
-
-_rs232_unpause:
-
-
-;----------------------------------------------------------------------------
-;
-; unsigned char __fastcall__ rs232_status (unsigned char* status,
-; unsigned char* errors);
-; /* Return the serial port status. */
-;
-
-_rs232_status:
-
- lda #255
- tax
- rts
-
-
-; enable concurrent rs232 mode
-; gets iocb index in X
-; all registers destroyed
-
-.proc ena_cm
-
- lda #40 ; XIO 40, start concurrent IO
- sta ICCOM,x
- sta cm_run ; indicate concurrent mode is running
- lda #0
- sta ICAX1,x
- sta ICAX2,x
- lda #<recv_buf
- sta ICBAL,x
- lda #>recv_buf
- sta ICBAH,x
- lda #<RECVBUF_SZ
- sta ICBLL,x
- lda #>RECVBUF_SZ
- sta ICBLH,x
- lda #$0D ; value from 850 man, p62. must be 0D?,
- sta ICAX1,x ; or any non-zero?
- jmp CIOV
-
-.endproc ;ena_cm
-
- .end
--- /dev/null
+;
+; Christian Groessler, Dec-2001
+;
+; RS232 routines using the R: device (currently tested with an 850 only)
+;
+; unsigned char __fastcall__ rs232_init (char hacked);
+; unsigned char __fastcall__ rs232_params (unsigned char params, unsigned char parity);
+; unsigned char __fastcall__ rs232_done (void);
+; unsigned char __fastcall__ rs232_get (char* B);
+; unsigned char __fastcall__ rs232_put (char B);
+; unsigned char __fastcall__ rs232_pause (void); [TODO]
+; unsigned char __fastcall__ rs232_unpause (void); [TODO]
+; unsigned char __fastcall__ rs232_status (unsigned char* status,
+; unsigned char* errors); [TODO]
+;
+
+ .import findfreeiocb
+ .import __do_oserror
+ .import fddecusage
+ .import fdtoiocb
+ .import __inviocb
+ .import clriocb
+ .import newfd
+ .import _close, pushax, popax, popa
+ .importzp ptr1, tmp2, tmp3
+
+ .export _rs232_init, _rs232_params, _rs232_done, _rs232_get
+ .export _rs232_put, _rs232_pause, _rs232_unpause, _rs232_status
+
+ .include "atari.inc"
+ .include "errno.inc"
+ .include "rs232.inc"
+
+ .rodata
+
+rdev: .byte "R:", ATEOL, 0
+
+ .bss
+
+; receive buffer
+RECVBUF_SZ = 256
+recv_buf: .res RECVBUF_SZ
+
+cm_run: .res 1 ; concurrent mode running?
+
+ .data
+
+rshand: .word $ffff
+
+ .code
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_init (char hacked);
+; /* Initialize the serial port. The parameter is ignored in the Atari version.
+; * return 0/-1 for OK/Error
+; */
+;
+
+.proc _rs232_init
+
+ jsr findfreeiocb
+ bne init_err
+ txa
+ tay ; move iocb # into Y
+ lda #3
+ sta tmp3 ; name length + 1
+ lda #<rdev
+ ldx #>rdev
+ jsr newfd
+ tya
+ bcs doopen ; C set: open needed / device not already open
+
+ pha
+ jsr _rs232_done ;** shut down if started @@@TODO check this out!!
+ pla
+
+doopen: tax
+ pha
+ jsr clriocb
+ pla
+ tax
+ lda #<rdev
+ sta ICBAL,x
+ lda #>rdev
+ sta ICBAH,x
+ lda #OPEN
+ sta ICCOM,x
+
+ lda #$0D ; mode in+out+concurrent
+ sta ICAX1,x
+ lda #0
+ sta ICAX2,x
+ sta ICBLL,x ; zap buf len
+ sta ICBLH,x
+ jsr CIOV
+ bmi cioerr1
+
+ lda tmp2 ; get fd
+ sta rshand
+ ldx #0
+ stx rshand+1
+ txa
+ rts
+
+cioerr1:jsr fddecusage ; decrement usage counter of fd as open failed
+
+init_err:
+ ldx #0
+ lda #RS_ERR_INIT_FAILED
+ rts
+
+.endproc ; _rs232_init
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_params (unsigned char params, unsigned char parity);
+;
+; Set communication parameters.
+;
+; params contains baud rate, stop bits and word size
+; parity contains parity
+;
+; 850 manual documents restrictions on the baud rate (not > 300), when not
+; using 8 bit word size. So only 8 bit is currently tested.
+;
+
+.proc _rs232_params
+
+ sta tmp2
+ lda rshand
+ cmp #$ff
+ bne work ; work only if initialized
+ lda #RS_ERR_NOT_INITIALIZED
+ bne done
+work: lda rshand
+ ldx #0
+ jsr fdtoiocb ; get iocb index into X
+ bmi inverr ; shouldn't happen
+ tax
+
+ ; set handshake lines
+
+ lda #34 ; xio 34, set cts, dtr etc
+ sta ICCOM,x
+ lda #192+48+3 ; DTR on, RTS on, XMT on
+ sta ICAX1,x
+ lda #0
+ sta ICBLL,x
+ sta ICBLH,x
+ sta ICBAL,x
+ sta ICBAH,x
+ sta ICAX2,x
+ jsr CIOV
+ bmi cioerr
+
+ ; set baud rate, word size, stop bits and ready monitoring
+
+ lda #36 ; xio 36, baud rate
+ sta ICCOM,x
+ jsr popa ; get parameter
+ sta ICAX1,x
+ ;ICAX2 = 0, monitor nothing
+ jsr CIOV
+ bmi cioerr
+
+ ; set translation and parity
+
+ lda #38 ; xio 38, translation and parity
+ sta ICCOM,x
+ lda tmp2
+ ora #32 ; no translation
+ sta ICAX1,x
+ jsr CIOV
+ bmi cioerr
+
+ lda #0
+done: ldx #0
+ rts
+
+inverr: jmp __inviocb
+
+.endproc ;_rs232_params
+
+cioerr: jmp __do_oserror
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_done (void);
+; /* Close the port, deinstall the interrupt hander. You MUST call this function
+; * before terminating the program, otherwise the machine may crash later. If
+; * in doubt, install an exit handler using atexit(). The function will do
+; * nothing, if it was already called.
+; */
+;
+
+.proc _rs232_done
+
+ lda rshand
+ cmp #$ff
+ beq done
+work: ldx rshand+1
+ jsr pushax
+ jsr _close
+ pha
+ txa
+ pha
+ ldx #$ff
+ stx rshand
+ stx rshand+1
+ inx
+ stx cm_run
+ pla
+ tax
+ pla
+done: rts
+
+.endproc ;rs232_done
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_get (char* B);
+; /* Get a character from the serial port. If no characters are available, the
+; * function will return RS_ERR_NO_DATA, so this is not a fatal error.
+; */
+;
+
+.proc _rs232_get
+
+ ldy rshand
+ cpy #$ff
+ bne work ; work only if initialized
+ lda #RS_ERR_NOT_INITIALIZED
+ bne nierr
+
+work: sta ptr1
+ stx ptr1+1 ; store pointer to received char
+
+ lda rshand
+ ldx #0
+ jsr fdtoiocb
+ tax
+ lda cm_run ; concurrent mode already running?
+ bne go
+ jsr ena_cm ; turn on concurrent mode
+
+go: ; check whether there is any input available
+
+ lda #STATIS ; status request, returns bytes pending
+ sta ICCOM,x
+ jsr CIOV
+ bmi cioerr ; @@@ error handling
+
+ lda DVSTAT+1 ; get byte count pending
+ ora DVSTAT+2
+ beq nix_da ; no input waiting...
+
+ ; input is available: get it!
+
+ lda #GETCHR ; get raw bytes
+ sta ICCOM,x ; in command code
+ lda #0
+ sta ICBLL,x
+ sta ICBLH,x
+ sta ICBAL,x
+ sta ICBAH,x
+ jsr CIOV ; go get it
+ bmi cioerr ; @@@ error handling
+
+ ldx #0
+ sta (ptr1,x) ; return received byte
+ txa
+ rts
+
+nierr: ldx #0
+ rts
+
+nix_da: lda #RS_ERR_NO_DATA
+ ldx #0
+ rts
+
+.endproc ;_rs232_get
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_put (char B);
+; /* Send a character via the serial port. There is a transmit buffer, but
+; * transmitting is not done via interrupt. The function returns
+; * RS_ERR_OVERFLOW if there is no space left in the transmit buffer.
+; */
+;
+
+.proc _rs232_put
+
+ ldy rshand
+ cpy #$ff
+ bne work ; work only if initialized
+ lda #RS_ERR_NOT_INITIALIZED
+ bne nierr
+
+work: pha
+ lda rshand
+ ldx #0
+ jsr fdtoiocb
+ tax
+ lda cm_run ; concurrent mode already running?
+ bne go
+ jsr ena_cm ; turn on concurrent mode
+
+ ; @@@TODO: check output buffer overflow
+go: lda #PUTCHR ; put raw bytes
+ sta ICCOM,x ; in command code
+ lda #0
+ sta ICBLL,x
+ sta ICBLH,x
+ sta ICBAL,x
+ sta ICBAH,x
+ pla ; get the char back
+ jsr CIOV ; go do it
+ rts
+
+nierr: ldx #0
+ rts
+
+.endproc ;_rs232_put
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_pause (void);
+; /* Assert flow control and disable interrupts. */
+;
+
+_rs232_pause:
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_unpause (void);
+; /* Re-enable interrupts and release flow control */
+;
+
+_rs232_unpause:
+
+
+;----------------------------------------------------------------------------
+;
+; unsigned char __fastcall__ rs232_status (unsigned char* status,
+; unsigned char* errors);
+; /* Return the serial port status. */
+;
+
+_rs232_status:
+
+ lda #255
+ tax
+ rts
+
+
+; enable concurrent rs232 mode
+; gets iocb index in X
+; all registers destroyed
+
+.proc ena_cm
+
+ lda #40 ; XIO 40, start concurrent IO
+ sta ICCOM,x
+ sta cm_run ; indicate concurrent mode is running
+ lda #0
+ sta ICAX1,x
+ sta ICAX2,x
+ lda #<recv_buf
+ sta ICBAL,x
+ lda #>recv_buf
+ sta ICBAH,x
+ lda #<RECVBUF_SZ
+ sta ICBLL,x
+ lda #>RECVBUF_SZ
+ sta ICBLH,x
+ lda #$0D ; value from 850 man, p62. must be 0D?,
+ sta ICAX1,x ; or any non-zero?
+ jmp CIOV
+
+.endproc ;ena_cm
+
+ .end
+++ /dev/null
-;
-; Ullrich von Bassewitz, 10.08.1998
-;
-; unsigned DbgSetBreakVec (unsigned Addr);
-;
-
- .export _DbgSetBreakVec
- .import popax, utstax
-
- .include "../cbm/cbm.inc"
-
-_DbgSetBreakVec:
- jsr popax ; Get the new address
- ldy BRKVec
- sta BRKVec
- lda BRKVec+1
- stx BRKVec+1
- tax
- tya
- jmp utstax
-
-
-
-
--- /dev/null
+;
+; Ullrich von Bassewitz, 10.08.1998
+;
+; unsigned DbgSetBreakVec (unsigned Addr);
+;
+
+ .export _DbgSetBreakVec
+ .import popax, utstax
+
+ .include "../cbm/cbm.inc"
+
+_DbgSetBreakVec:
+ jsr popax ; Get the new address
+ ldy BRKVec
+ sta BRKVec
+ lda BRKVec+1
+ stx BRKVec+1
+ tax
+ tya
+ jmp utstax
+
+
+
+
projects / cc65 / commitdiff