mirror of
https://github.com/bobbimanners/Applecorn.git
synced 2024-12-29 05:29:28 +00:00
Character input loop enables IRQs
Character input loop enables IRQs. Fixed bug where cursor keys all returned TAB if *FX4,2 active.
This commit is contained in:
jgharston
GitHub
parent
480576693a
commit
7112146a0d
352
auxmem.chario.s
352
auxmem.chario.s
@ -1,5 +1,5 @@
|
||||
* AUXMEM.CHARIO.S
|
||||
* (c) Bobbi 2021 GPLv3
|
||||
* (c) Bobbi 2021,2022 GPLv3
|
||||
*
|
||||
* AppleMOS Character I/O
|
||||
|
||||
@ -9,7 +9,7 @@
|
||||
* Character read and write
|
||||
*
|
||||
* 14-Aug-2021 Flashing cursor and INKEY sync'd to frame rate
|
||||
* with VBLK. Ensured cursor turned on straightaway.
|
||||
* with VBLK. Ensured cursor turned on straight away.
|
||||
* 15-Aug-2021 Cursor keys move copy cursor, copy reads char.
|
||||
* Copy cursor not visible yet.
|
||||
* 16-Aug-2021 Copy cursor and Edit cursor visible.
|
||||
@ -27,11 +27,18 @@
|
||||
* 12-Sep-2021 COPY calls new VDU entry point.
|
||||
* 15-Sep-2021 INKEY(0) tests once and returns immediately.
|
||||
* 30-Nov-2021 With *FX4,<>0 TAB returns $09, allows eg VIEW to work.
|
||||
* 13-Sep-2022 Fix bug in INKEY with misbalanced stack when Escape pressed
|
||||
* TO DO: CHKESC should go through translations before testing.
|
||||
* 15-Oct-2022 Replace calling KBDCHKESC with ESCPOLL, does translations, etc.
|
||||
* Fixed bug with cursor keys after *FX4,2. OSRDCH enables IRQs.
|
||||
|
||||
|
||||
FLASHER EQU BYTEVARBASE+176 ; VSync counter for flashing cursor
|
||||
* Hardware locations
|
||||
KBDDATA EQU $C000 ; Read Keyboard data
|
||||
KBDACK EQU $C010 ; Acknowledge keyboard data
|
||||
KBDAPPLFT EQU $C061 ; Left Apple key
|
||||
KBDAPPRGT EQU $C062 ; Right Apple key
|
||||
IOVBLNK EQU $C019 ; VBLNK pulse
|
||||
|
||||
FLASHER EQU BYTEVARBASE+176 ; VSync counter for flashing cursor
|
||||
FXEXEC EQU BYTEVARBASE+198
|
||||
FXSPOOL EQU BYTEVARBASE+199
|
||||
|
||||
@ -56,23 +63,23 @@ WRCHHND PHA
|
||||
PHX
|
||||
PHY
|
||||
PHA
|
||||
JSR OUTCHAR
|
||||
|
||||
* TO DO Check any output redirections
|
||||
* TO DO Check any printer output
|
||||
* BCC WRCHHND3
|
||||
* PLA
|
||||
JSR OUTCHAR ; Send to VDU driver
|
||||
* BCC WRCHHND3 ; VDU driver says skip printer
|
||||
* PLA ; Get character back
|
||||
* PHA
|
||||
* JSR PRNCHAR
|
||||
* JSR PRNCHAR ; Send to printer
|
||||
* WRCHHND3
|
||||
|
||||
LDY FXSPOOL ; See if *SPOOL is in effect
|
||||
BEQ WRCHHND4
|
||||
* Check FX3VAR
|
||||
* Bxx WRCHHND4 ; Spool disabled
|
||||
LDY FXSPOOL ; See if *SPOOL is in effect
|
||||
BEQ WRCHHND4 ; No, skip sending to spool file
|
||||
PLA
|
||||
PHA
|
||||
JSR OSBPUT ; Write char to spool file
|
||||
WRCHHND4 PLA
|
||||
PLY
|
||||
JSR OSBPUT ; Write character to spool file
|
||||
WRCHHND4 PLA ; Drop stacked character
|
||||
PLY ; Restore everything
|
||||
PLX
|
||||
PLA
|
||||
RTS
|
||||
@ -81,32 +88,32 @@ WRCHHND4 PLA
|
||||
* Character Input
|
||||
*****************
|
||||
* Default keyboard OSBYTE variables
|
||||
*DEFBYTELOW EQU 219 ; First default OSBYTE value
|
||||
*DEFBYTE DB $09,$1B ; Default key codes
|
||||
* DB $01,$D0,$E0,$F0 ; Default key expansion
|
||||
* DB $01,$80,$90,$00 ; Default key expansion
|
||||
*DEFBYTELOW EQU 219 ; First default OSBYTE value
|
||||
*DEFBYTE DB $09,$1B ; Default key codes
|
||||
* DB $01,$D0,$E0,$F0 ; Default key expansion
|
||||
* DB $01,$80,$90,$00 ; Default key expansion
|
||||
*DEFBYTEEND
|
||||
|
||||
* TEMP as no *KEY
|
||||
* Default keyboard OSBYTE variables
|
||||
DEFBYTELOW EQU 219 ; First default OSBYTE value
|
||||
DEFBYTE DB $09,$1B ; Default key codes
|
||||
DB $C0,$D0,$E0,$F0 ; Default key expansion
|
||||
DB $80,$90,$A0,$B0 ; Default key expansion
|
||||
DEFBYTELOW EQU 219 ; First default OSBYTE value
|
||||
DEFBYTE DB $09,$1B ; Default key codes
|
||||
DB $C0,$D0,$E0,$F0 ; Default key expansion
|
||||
DB $80,$90,$A0,$B0 ; Default key expansion
|
||||
DEFBYTEEND
|
||||
|
||||
KBDINIT LDX #DEFBYTEEND-DEFBYTE-1
|
||||
:KBDINITLP LDA DEFBYTE,X ; Initialise KBD OSBYTE variables
|
||||
:KBDINITLP LDA DEFBYTE,X ; Initialise KBD OSBYTE variables
|
||||
STA BYTEVARBASE+DEFBYTELOW,X
|
||||
DEX
|
||||
BPL :KBDINITLP
|
||||
LDX #$C0
|
||||
STX FX254VAR ; b7-b4=default KBD map, b3-b0=default MODE
|
||||
BIT SETV
|
||||
JSR KBDTEST
|
||||
BCS :KBDINITOK ; Return default MODE=0
|
||||
STA KBDSTRB ; Ack. keypress
|
||||
TAX ; Use keypress as default MODE
|
||||
STX FX254VAR ; b7-b4=default KBD map, b3-b0=default MODE
|
||||
BIT SETV ; Set V
|
||||
JSR KBDTEST ; Test if key being pressed
|
||||
BCS :KBDINITOK ; Return default MODE=0
|
||||
STA KBDACK ; Ack. keypress
|
||||
TAX ; Use keypress as default MODE
|
||||
:KBDINITOK TXA
|
||||
RTS
|
||||
|
||||
@ -115,88 +122,89 @@ KBDINIT LDX #DEFBYTEEND-DEFBYTE-1
|
||||
* Read a character from current input
|
||||
* All registers preserved except A, Carry
|
||||
* Flashes a soft cursor while waiting for input
|
||||
* *NB* OSRDCH returns with IRQs enabled, INKEY returns with IRQs preserved
|
||||
*
|
||||
RDCHHND LDA #$80 ; flag=wait forever
|
||||
RDCHHND LDA #$80 ; flag=wait forever
|
||||
PHY
|
||||
TAY
|
||||
BRA INKEYGO ; Wait forever for input
|
||||
BRA INKEYGO ; Wait forever for input
|
||||
|
||||
* XY<$8000 - wait for a keypress
|
||||
INKEY PHY ; Dummy PHY to balance RDCH
|
||||
INKEYGO PHX ; Save registers
|
||||
INKEY PHY ; Dummy PHY to balance RDCH
|
||||
INKEYGO CLI ; Enable IRQs
|
||||
PHX ; Save registers
|
||||
PHY
|
||||
BIT VDUSTATUS ; Enable editing cursor
|
||||
BVC INKEYGO2 ; No editing cursor
|
||||
JSR GETCHRC ; Get character under cursor
|
||||
STA COPYCHAR ; Save char under edit cursor
|
||||
BIT VDUSTATUS ; Enable editing cursor
|
||||
BVC INKEYGO2 ; No editing cursor
|
||||
JSR GETCHRC ; Get character under cursor
|
||||
STA COPYCHAR ; Save char under edit cursor
|
||||
LDA CURSORED
|
||||
JSR PUTCHRC ; Display edit cursor
|
||||
JSR COPYSWAP1 ; Swap to copy cursor
|
||||
INKEYGO2 JSR GETCHRC ; Get character under cursor
|
||||
JSR PUTCHRC ; Display edit cursor
|
||||
JSR COPYSWAP1 ; Swap to copy cursor
|
||||
INKEYGO2 JSR GETCHRC ; Get character under cursor
|
||||
STA OLDCHAR
|
||||
BRA INKEY1 ; Turn cursor on
|
||||
BRA INKEY1 ; Turn cursor on
|
||||
|
||||
INKEYLP CLC
|
||||
LDA #$01 ; Slow flash, every 32 frames
|
||||
LDA #$01 ; Slow flash, every 32 frames
|
||||
BIT VDUSTATUS
|
||||
BVC INKEY0
|
||||
ASL A ; Fast flash, every 16 frames
|
||||
ASL A ; Fast flash, every 16 frames
|
||||
INKEY0 ADC FLASHER
|
||||
STA FLASHER
|
||||
AND #15
|
||||
BNE INKEY3 ; Not time to toggle yet
|
||||
LDA OLDCHAR ; Prepare to remove cursor
|
||||
BNE INKEY3 ; Not time to toggle yet
|
||||
LDA OLDCHAR ; Prepare to remove cursor
|
||||
BIT FLASHER
|
||||
BMI INKEY2 ; Remove cursor
|
||||
INKEY1 LDA CURSOR ; Add cursor
|
||||
BMI INKEY2 ; Remove cursor
|
||||
INKEY1 LDA CURSOR ; Add cursor
|
||||
BIT VDUSTATUS
|
||||
BVC INKEY2
|
||||
LDA CURSORCP
|
||||
INKEY2 JSR PUTCHRC ; Toggle cursor
|
||||
INKEY2 JSR PUTCHRC ; Toggle cursor
|
||||
INKEY3 LDA ESCFLAG
|
||||
BMI INKEYOK ; Escape pending, return it
|
||||
INKEY4 JSR KEYREAD ; Test for input, all can be trashed
|
||||
BMI INKEYOK ; Escape pending, return it
|
||||
INKEY4 JSR KEYREAD ; Test for input, all can be trashed
|
||||
PLY
|
||||
BCC INKEYOK ; Char returned, return it
|
||||
BMI INKEY6 ; Loop forever, skip countdown
|
||||
BCC INKEYOK ; Char returned, return it
|
||||
BMI INKEY6 ; Loop forever, skip countdown
|
||||
PLX
|
||||
BNE INKEY5
|
||||
TYA
|
||||
BEQ INKEYOUT ; XY=0, timed out
|
||||
DEY ; 16-bit decrement
|
||||
BEQ INKEYOUT ; XY=0, timed out
|
||||
DEY ; 16-bit decrement
|
||||
INKEY5 DEX
|
||||
PHX
|
||||
INKEY6 PHY
|
||||
*
|
||||
* VBLK pulses at 50Hz/60Hz, toggles at 100Hz/120Hz
|
||||
LDX RDVBL ; Get initial VBLK state
|
||||
INKEY8 BIT KEYBOARD
|
||||
BMI INKEY4 ; Key pressed
|
||||
LDX IOVBLNK ; Get initial VBLK state
|
||||
INKEY8 BIT KBDDATA
|
||||
BMI INKEY4 ; Key pressed
|
||||
TXA
|
||||
EOR RDVBL
|
||||
BPL INKEY8 ; Wait for VBLK change
|
||||
BMI INKEYLP ; Loop back to key test
|
||||
EOR IOVBLNK
|
||||
BPL INKEY8 ; Wait for VBLK change
|
||||
BMI INKEYLP ; Loop back to key test
|
||||
|
||||
INKEYOUT PLA ; Drop stacked Y
|
||||
LDA #$FF ; Prepare to stack $FF
|
||||
*
|
||||
INKEYOK PHA ; Save key or timeout
|
||||
PHP ; Save CC=key, CS=timeout
|
||||
LDA OLDCHAR ; Prepare for main cursor
|
||||
INKEYOUT PLA ; Drop stacked Y
|
||||
LDA #$FF ; Prepare to stack $FF
|
||||
INKEYOK PHA ; Save key or timeout
|
||||
PHP ; Save CC=key, CS=timeout
|
||||
LDA OLDCHAR ; Prepare for main cursor
|
||||
BIT VDUSTATUS
|
||||
BVC INKEYOFF2 ; No editing cursor
|
||||
JSR PUTCHRC ; Remove cursor
|
||||
JSR COPYSWAP1 ; Swap cursor back
|
||||
LDA COPYCHAR ; Remove main cursor
|
||||
INKEYOFF2 JSR PUTCHRC ; Remove cursor
|
||||
BVC INKEYOFF2 ; No editing cursor
|
||||
JSR PUTCHRC ; Remove cursor
|
||||
JSR COPYSWAP1 ; Swap cursor back
|
||||
LDA COPYCHAR ; Remove main cursor
|
||||
INKEYOFF2 JSR PUTCHRC ; Remove cursor
|
||||
*
|
||||
PLP
|
||||
BCS INKEYOK3 ; Timeout
|
||||
LDA ESCFLAG ; Keypress, test for Escape
|
||||
ASL A ; Cy=Escape flag
|
||||
PLA ; Get char back
|
||||
PLX ; Restore X,Y for key pressed
|
||||
INKEYOK3 PLY ; Or pop TimeOut
|
||||
BCS INKEYOK3 ; Timeout
|
||||
LDA ESCFLAG ; Keypress, test for Escape
|
||||
ASL A ; Cy=Escape flag
|
||||
PLA ; Get char back
|
||||
PLX ; Restore X,Y for key pressed
|
||||
INKEYOK3 PLY ; Or pop TimeOut
|
||||
RTS
|
||||
* RDCH Character read: CC, A=char, X=restored, Y=restored
|
||||
* RDCH Escape: CS, A=char, X=restored, Y=restored
|
||||
@ -206,17 +214,17 @@ INKEYOK3 PLY ; Or pop TimeOut
|
||||
|
||||
|
||||
BYTE81 TYA
|
||||
BMI NEGINKEY ; XY<0, scan for keypress
|
||||
JSR INKEY ; XY>=0, wait for keypress
|
||||
BMI NEGINKEY ; XY<0, scan for keypress
|
||||
JSR INKEY ; XY>=0, wait for keypress
|
||||
* Character read: CC, A=char, X=???, Y<$80
|
||||
* Escape: CS, A=char, X=???, Y<$80
|
||||
* Timeout: CS, A=???, X=???, Y=$FF
|
||||
TAX ; X=character returned
|
||||
TAX ; X=character returned
|
||||
TYA
|
||||
BMI BYTE81DONE ; Y=$FF, timeout
|
||||
BMI BYTE81DONE ; Y=$FF, timeout
|
||||
LDY #$00
|
||||
BCC BYTE81DONE ; CC, not Escape
|
||||
LDY #$1B ; Y=27
|
||||
BCC BYTE81DONE ; CC, not Escape
|
||||
LDY #$1B ; Y=27
|
||||
BYTE81DONE RTS
|
||||
* Returns: Y=$FF, X=???, CS - timeout
|
||||
* Y=$1B, X=???, CS - escape
|
||||
@ -224,25 +232,21 @@ BYTE81DONE RTS
|
||||
|
||||
|
||||
NEGINKEY CPX #$01
|
||||
LDX #$00 ; Unimplemented
|
||||
LDX #$00 ; Unimplemented
|
||||
BCS NEGINKEY0
|
||||
|
||||
JSR NEGCALL ; Read machine ID from aux
|
||||
TAX ; *TEST*
|
||||
BIT $E0 ; *TEST*
|
||||
BVS NEGINKEY1 ; *TEST*
|
||||
JSR NEGCALL ; Read machine ID from mainmem
|
||||
LDX #$2C
|
||||
TAY
|
||||
BEQ NEGINKEY0 ; $00 = Apple IIc -> INKEY-256 = $2C
|
||||
BEQ NEGINKEY0 ; $00 = Apple IIc -> INKEY-256 = $2C
|
||||
LDX #$2E
|
||||
AND #$0F
|
||||
BEQ NEGINKEY0 ; $x0 = Apple IIe -> INKEY-256 = $2E
|
||||
LDX #$2A ; else = Apple IIgs -> INKEY-256 = $2A
|
||||
BEQ NEGINKEY0 ; $x0 = Apple IIe -> INKEY-256 = $2E
|
||||
LDX #$2A ; else = Apple IIgs -> INKEY-256 = $2A
|
||||
NEGINKEY0 LDY #$00
|
||||
NEGINKEY1 CLC
|
||||
RTS
|
||||
|
||||
NEGCALL >>> XF2MAIN,MACHRD ; Try to read Machine ID
|
||||
NEGCALL >>> XF2MAIN,MACHRD ; Try to read Machine ID
|
||||
|
||||
|
||||
* KERNEL/KEYBOARD.S
|
||||
@ -256,15 +260,14 @@ NEGCALL >>> XF2MAIN,MACHRD ; Try to read Machine ID
|
||||
* On exit, CS=no keypress
|
||||
* CC=keypress
|
||||
* A =keycode, X,Y=corrupted
|
||||
KEYREAD LDY FXEXEC ; See if *EXEC file is open
|
||||
BEQ KEYREAD1
|
||||
JSR OSBGET ; Read keypress from file
|
||||
BCC KEYREADOK
|
||||
LDA #0 ; EOF, close *EXEC file
|
||||
STA FXEXEC
|
||||
JSR OSFIND
|
||||
KEYREAD LDY FXEXEC ; See if EXEC file is open
|
||||
BEQ KEYREAD1 ; No, skip past
|
||||
JSR OSBGET ; Read character from file
|
||||
BCC KEYREADOK ; Not EOF, return it
|
||||
LDA #$00 ; EOF, close EXEC file
|
||||
STA FXEXEC ; Clear EXEC handle
|
||||
JSR OSFIND ; And close it
|
||||
KEYREAD1
|
||||
|
||||
*
|
||||
* TO DO: expand current soft key
|
||||
* LDA SOFTKEYLEN
|
||||
@ -277,46 +280,45 @@ KEYREAD1
|
||||
* RTS
|
||||
* KEYREAD2
|
||||
*
|
||||
JSR KBDREAD ; Fetch character from KBD "buffer"
|
||||
BCS KEYREADOK ; Nothing pending
|
||||
TAY
|
||||
BPL KEYREADOK ; Not top-bit key
|
||||
AND #$CF
|
||||
JSR KBDREAD ; Fetch character from KBD "buffer"
|
||||
BCS KEYREADOK ; Nothing pending
|
||||
TAY ; Y=unmodified character
|
||||
BPL KEYREADOK ; Not top-bit key
|
||||
AND #$CF ; Drop Shift/Ctrl bits
|
||||
CMP #$C9
|
||||
BCC KEYSOFT ; Not cursor key
|
||||
BCC KEYSOFTY ; Not cursor key
|
||||
LDX FX4VAR
|
||||
BEQ KEYCURSOR ; *FX4,0 - editing keys
|
||||
LDY FXTABCHAR
|
||||
CMP #$C9
|
||||
BEQ KEYREADOKY ; TAB key
|
||||
BEQ KEYCURSOR ; *FX4,0 - editing keys
|
||||
CPY #$C9
|
||||
CLV
|
||||
BEQ KEYCOPYTAB ; TAB key
|
||||
DEX
|
||||
BNE KEYSOFT1 ; Not *FX4,1 - soft key
|
||||
SBC #$44 ; Return $88-$8B
|
||||
TAY
|
||||
KEYREADOKY TYA
|
||||
BNE KEYSOFTHI ; Not *FX4,1 - soft key
|
||||
SBC #$44 ; Return $88-$8B
|
||||
KEYREADOK1 CLC
|
||||
KEYREADOK RTS
|
||||
*
|
||||
|
||||
* Process soft key
|
||||
KEYSOFT1 LDX FX254VAR
|
||||
KEYSOFTHI LDX FX254VAR
|
||||
CPX #$C0
|
||||
BCC KEYSOFT
|
||||
BCC KEYSOFTY
|
||||
TYA
|
||||
AND #$BF
|
||||
TAY
|
||||
KEYSOFT TYA
|
||||
KEYSOFTY TYA ; Get key including Shift/Ctrl
|
||||
LSR A
|
||||
LSR A
|
||||
LSR A
|
||||
LSR A ; A=key DIV 16
|
||||
EOR #$04 ; Offset into KEYBASE
|
||||
LSR A ; A=key DIV 16
|
||||
EOR #$04 ; Offset into KEYBASE
|
||||
TAX
|
||||
LDA FXKEYBASE-8,X
|
||||
* TO DO:
|
||||
*BEQ KEYNONE ; $00=ignored
|
||||
*DEC A
|
||||
*BEQ expandfunction
|
||||
CMP #2 ; *TEMP*
|
||||
BCC KEYNONE ; *TEMP*
|
||||
CMP #2 ; *TEMP*
|
||||
BCC KEYNONE ; *TEMP*
|
||||
TYA
|
||||
AND #$0F
|
||||
CLC
|
||||
@ -329,26 +331,26 @@ KEYCURSOR CMP #$C9
|
||||
BEQ KEYCOPY
|
||||
PHA
|
||||
LDA OLDCHAR
|
||||
JSR PUTCHRC ; Remove cursor
|
||||
JSR PUTCHRC ; Remove cursor
|
||||
PLA
|
||||
JSR COPYMOVE ; Move copy cursor
|
||||
JSR GETCHRC ; Save char under cursor
|
||||
JSR COPYMOVE ; Move copy cursor
|
||||
JSR GETCHRC ; Save char under cursor
|
||||
STA OLDCHAR
|
||||
KEYNONE SEC
|
||||
RTS
|
||||
|
||||
KEYCOPY LDA FXTABCHAR ; Prepare TAB if no copy cursor
|
||||
BIT VDUSTATUS
|
||||
BVC KEYREADOK1 ; No copy cursor, return TAB
|
||||
LDA OLDCHAR ; Get the char under cursor
|
||||
KEYCOPY BIT VDUSTATUS
|
||||
KEYCOPYTAB LDA FXTABCHAR ; Prepare TAB if no copy cursor
|
||||
BVC KEYREADOK1 ; No copy cursor, return TAB
|
||||
LDA OLDCHAR ; Get the char under cursor
|
||||
PHA
|
||||
JSR OUTCHARCP ; Output it to restore and move cursor
|
||||
JSR GETCHRC ; Save char under cursor
|
||||
JSR OUTCHARCP ; Output it to restore and move cursor
|
||||
JSR GETCHRC ; Save char under cursor
|
||||
STA OLDCHAR
|
||||
PLA
|
||||
BNE KEYREADOK1 ; Ok character
|
||||
BNE KEYREADOK1 ; Ok character
|
||||
SEC
|
||||
JMP BEEP ; Beep and return CS=No char
|
||||
JMP BEEP ; Beep and return CS=No char
|
||||
|
||||
|
||||
* KBDREAD
|
||||
@ -363,63 +365,63 @@ KEYCOPY LDA FXTABCHAR ; Prepare TAB if no copy cursor
|
||||
* TAB -> $C9
|
||||
* Cursors -> $CC-$CF
|
||||
*
|
||||
KBDREAD CLV ; VC=return keypress
|
||||
KBDTEST LDA KEYBOARD ; VS here to test for keypress
|
||||
EOR #$80 ; Toggle bit 7
|
||||
KBDREAD CLV ; VC=return keypress
|
||||
KBDTEST LDA KBDDATA ; VS here to test for keypress
|
||||
EOR #$80 ; Toggle bit 7
|
||||
CMP #$80
|
||||
BCS KBDDONE ; No key pressed
|
||||
BVS KBDDONE ; VS=test for keypress
|
||||
STA KBDSTRB ; Ack. keypress
|
||||
BIT BUTTON0
|
||||
BMI KBDLALT ; Left Apple pressed
|
||||
BIT BUTTON1
|
||||
BMI KBDRALT ; Right Apple pressed
|
||||
BCS KBDDONE ; No key pressed
|
||||
BVS KBDDONE ; VS=test for keypress
|
||||
STA KBDACK ; Ack. keypress
|
||||
KBDREAD2 BIT KBDAPPLFT
|
||||
BMI KBDLALT ; Left Apple pressed
|
||||
BIT KBDAPPRGT
|
||||
BMI KBDRALT ; Right Apple pressed
|
||||
CMP #$09
|
||||
BEQ KBDTAB ; TAB is dual action TAB/COPY
|
||||
BEQ KBDTAB ; TAB is dual action TAB/COPY
|
||||
CMP #$08
|
||||
BCC KBDCHKESC ; <$08 not cursor key
|
||||
BCC KBDCHKESC ; <$08 not cursor key
|
||||
CMP #$0C
|
||||
BCC KBDCURSR ; $08-$0B are cursor keys
|
||||
BCC KBDCURSR ; $08-$0B are cursor keys
|
||||
CMP #$15
|
||||
BNE KBDCHKESC ; $15 is cursor key
|
||||
BNE KBDCHKESC ; $15 is cursor key
|
||||
*
|
||||
KBDCUR15 LDA #$0D ; Convert RGT to $09
|
||||
KBDTAB SBC #$04 ; Convert TAB to &C9
|
||||
KBDCUR15 LDA #$0D ; Convert RGT to $09
|
||||
KBDTAB SBC #$04 ; Convert TAB to &C9
|
||||
KBDCURSR CLC
|
||||
ADC #$C4 ; Cursor keys $C0+x
|
||||
ADC #$C4 ; Cursor keys $C0+x
|
||||
BRA KBDCHKESC
|
||||
|
||||
KBDRALT ; Right Apple key pressed
|
||||
KBDLALT CMP #$40 ; Left Apple key pressed
|
||||
KBDRALT ; Right Apple key pressed
|
||||
KBDLALT CMP #$40 ; Left Apple key pressed
|
||||
BCS KBDCTRL
|
||||
CMP #$30
|
||||
BCC KBDCHKESC ; <'0'
|
||||
BCC KBDCHKESC ; <'0'
|
||||
CMP #$3A
|
||||
BCS KBDCHKESC ; >'9'
|
||||
KBDFUNC AND #$0F ; Convert Apple-Num to function key
|
||||
BCS KBDCHKESC ; >'9'
|
||||
KBDFUNC AND #$0F ; Convert Apple-Num to function key
|
||||
ORA #$80
|
||||
BIT BUTTON1
|
||||
BPL KBDCHKESC ; Left+Digit -> $8x
|
||||
ORA #$90 ; Right+Digit -> $9x
|
||||
BIT BUTTON0
|
||||
KBDFUNC2 BIT KBDAPPRGT
|
||||
BPL KBDCHKESC ; Left+Digit -> $8x
|
||||
ORA #$90 ; Right+Digit -> $9x
|
||||
BIT KBDAPPLFT
|
||||
BPL KBDCHKESC
|
||||
EOR #$30 ; Left+Right+Digit -> $Ax
|
||||
EOR #$30 ; Left+Right+Digit -> $Ax
|
||||
BRA KBDCHKESC
|
||||
|
||||
KBDCTRL AND #$1F ; Apple-Letter -> Ctrl-Letter
|
||||
KBDCTRL AND #$1F ; Apple-Letter -> Ctrl-Letter
|
||||
*
|
||||
* Test for Escape key
|
||||
KBDCHKESC TAX ; X=keycode
|
||||
EOR FXESCCHAR ; Current ESCAPE char?
|
||||
ORA FXESCON ; Is ESCAPE an ASCII char?
|
||||
BNE KBDNOESC ; Not ESCAPE or ESCAPE=ASCII
|
||||
LDA FX200VAR ; Is ESCAPE ignored?
|
||||
LSR A ; Check bit 0
|
||||
BCS KBDDONE ; ESCAPE completely ignored
|
||||
* Test for Escape character
|
||||
KBDCHKESC TAX ; X=keycode
|
||||
EOR FXESCCHAR ; Current ESCAPE char?
|
||||
ORA FXESCON ; Is ESCAPE an ASCII char?
|
||||
BNE KBDNOESC ; Not ESCAPE or ESCAPE=ASCII
|
||||
LDA FX200VAR ; Is ESCAPE ignored?
|
||||
LSR A ; Check bit 0
|
||||
BCS KBDDONE ; ESCAPE completely ignored
|
||||
SEC
|
||||
ROR ESCFLAG ; Set Escape flag
|
||||
KBDNOESC TXA ; A=keycode
|
||||
CLC ; CLC=Ok
|
||||
ROR ESCFLAG ; Set Escape flag
|
||||
KBDNOESC TXA ; A=keycode
|
||||
CLC ; CLC=Ok
|
||||
KBDDONE RTS
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user