Fully integrated ADB keyboard support
That was satisfying, watching three films while working out the code on paper. :) Really like writing keyboard drivers. ADB extensions fully integrated into KBDREAD code. Keypad defaults to function keys. Also lets Shift/Ctrl-Cursors to be detected on GS.
This commit is contained in:
jgharston
GitHub
parent
b38ab95691
commit
d8c99f3ef7
201
auxmem.chario.s
201
auxmem.chario.s
|
|
@ -35,6 +35,7 @@
|
|||
* 06-Dec-2022 Moved *KEY into here.
|
||||
* 12-Dec-2022 Test code to write *KEY data to mainmem.
|
||||
* 24-Dec-2022 Minor bit of tidying.
|
||||
* 26-Dec-2022 Integrated ADB extended keyboard keys.
|
||||
|
||||
|
||||
* Hardware locations
|
||||
|
|
@ -42,23 +43,27 @@ KBDDATA EQU $C000 ; Read Keyboard data
|
|||
KBDACK EQU $C010 ; Acknowledge keyboard data
|
||||
KBDAPPLFT EQU $C061 ; Left Apple key
|
||||
KBDAPPRGT EQU $C062 ; Right Apple key
|
||||
KBDMOD EQU $C025 ; AppleIIgs modifier keys
|
||||
IOVBLNK EQU $C019 ; VBLNK pulse
|
||||
|
||||
FLASHER EQU BYTEVARBASE+176 ; VSync counter for flashing cursor
|
||||
FXEXEC EQU BYTEVARBASE+198 ; *EXEC handle
|
||||
FXSPOOL EQU BYTEVARBASE+199 ; *SPOOL handle
|
||||
|
||||
FXKBDSTATE EQU BYTEVARBASE+202 ; Keyboard modifier state
|
||||
FXTABCHAR EQU BYTEVARBASE+219 ; Char for TAB key to return
|
||||
FXESCCHAR EQU BYTEVARBASE+220 ; Char to match as Escape key
|
||||
FXKEYBASE EQU BYTEVARBASE+221 ; Base of char &80+ translations
|
||||
FXKEYPADBASE EQU BYTEVARBASE+238 ; Base of keypad keys
|
||||
FXESCON EQU BYTEVARBASE+229 ; Escape key is ASC or ESC
|
||||
FXESCEFFECT EQU BYTEVARBASE+230 ; Actions when Escape acknowledged
|
||||
FX200VAR EQU BYTEVARBASE+200 ; Completely ignore CHR$(escape)
|
||||
FX254VAR EQU BYTEVARBASE+254 ; Keyboard map
|
||||
|
||||
FXSOFTLEN EQU BYTEVARBASE+216 ; Length of current soft key
|
||||
FXSOFTOFF EQU BYTEVARBASE+233 ; Offset to current soft key
|
||||
FXSOFTOK EQU BYTEVARBASE+244 ; Soft keys not unstable
|
||||
|
||||
FX254VAR EQU BYTEVARBASE+254 ; Keyboard map
|
||||
FX2VAR EQU BYTEVARBASE+$B1 ; Input stream
|
||||
FX3VAR EQU BYTEVARBASE+$EC ; Output streams
|
||||
FX4VAR EQU BYTEVARBASE+$ED ; Cursor key state
|
||||
|
|
@ -112,12 +117,14 @@ KBDINIT LDX #DEFBYTEEND-DEFBYTE-1
|
|||
STA BYTEVARBASE+DEFBYTELOW,X
|
||||
DEX
|
||||
BPL :KBDINITLP
|
||||
LDA #$80 ; Keypad keys are function keys
|
||||
STA FXKEYPADBASE
|
||||
JSR SOFTKEYCHK ; Clear soft keys
|
||||
LDX #$C3
|
||||
LDX #$C3 ; Default KBD=Native, MODE=3
|
||||
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=3
|
||||
BCS :KBDINITOK ; Return default MODE
|
||||
STA KBDACK ; Ack. keypress
|
||||
TAX ; Use keypress as default MODE
|
||||
:KBDINITOK TXA
|
||||
|
|
@ -463,50 +470,6 @@ BYTE12
|
|||
BYTE12OK RTS
|
||||
|
||||
|
||||
* Handle function keys on ADB Extended Keyboard & BMOW Wombat
|
||||
* For Apple IIGS only
|
||||
EXTENDKBD BIT VDUBANK ; Use VDUBANK to see if ...
|
||||
BMI :GS ; ... this is a GS
|
||||
RTS ; If not, bail
|
||||
:GS PHA ; Preserve character typed
|
||||
LDA KEYMOD ; GS-specific register
|
||||
AND #$10 ; Bit 4 is the 'keypad bit'
|
||||
BEQ :NOTKEYPAD ; Not an extended key
|
||||
PLA
|
||||
LDX #$00
|
||||
:LOOP CMP :TABLE,X ; Lookup keycode in table
|
||||
BEQ :FOUND
|
||||
INX
|
||||
INX
|
||||
CPX #20 ; 10 rows of two bytes each
|
||||
BNE :LOOP
|
||||
RTS ; Not found, return unchanged
|
||||
:FOUND LDA KEYMOD ; Look at the modifiers
|
||||
AND #$C3 ; Mask only the modifier bits
|
||||
CMP #$01 ; Only shift pressed
|
||||
BNE :S1
|
||||
LDA #$10 ; Offset for shift+f-key
|
||||
BRA :S2
|
||||
:S1 CMP #$02 ; Only ctrl pressed
|
||||
BNE :S2
|
||||
LDA #$20 ; Offset for ctrl+f-key
|
||||
:S2 CLC
|
||||
ADC :TABLE+1,X ; Lookup translation + add
|
||||
RTS
|
||||
:NOTKEYPAD PLA ; Get original key back
|
||||
RTS
|
||||
:TABLE DB $7A, $81 ; Extended keyboard F1 code -> f1
|
||||
DB $78, $82 ; Extended keyboard F2 code -> f2
|
||||
DB $63, $83 ; Extended keyboard F3 code -> f3
|
||||
DB $76, $84 ; Extended keyboard F4 code -> f4
|
||||
DB $60, $85 ; Extended keyboard F5 code -> f5
|
||||
DB $61, $86 ; Extended keyboard F6 code -> f6
|
||||
DB $62, $87 ; Extended keyboard F7 code -> f7
|
||||
DB $64, $88 ; Extended keyboard F8 code -> f8
|
||||
DB $65, $89 ; Extended keyboard F9 code -> f9
|
||||
DB $6D, $80 ; Extended keyboard F10 code -> f0
|
||||
|
||||
|
||||
* KEYREAD
|
||||
************************
|
||||
* Test for and read from input,
|
||||
|
|
@ -522,19 +485,18 @@ KEYREAD LDY FXEXEC ; See if EXEC file is open
|
|||
LDA #$00 ; EOF, close EXEC file
|
||||
STA FXEXEC ; Clear EXEC handle
|
||||
JSR OSFIND ; And close it
|
||||
KEYREAD1 LDA FXSOFTLEN
|
||||
BEQ KEYREAD2
|
||||
LDX FXSOFTOFF ; SOFTKEYOFF
|
||||
KEYREAD1 LDA FXSOFTLEN ; Soft key active?
|
||||
BEQ KEYREAD2 ; No, skip past
|
||||
LDX FXSOFTOFF ; Get offset to current character
|
||||
>>> RDMAIN
|
||||
LDA FKEYBUF,X
|
||||
LDA FKEYBUF,X ; Get it from mainmem
|
||||
>>> RDAUX
|
||||
INC FXSOFTOFF ; SOFTKEYOFF
|
||||
DEC FXSOFTLEN
|
||||
INC FXSOFTOFF ; Inc. offset
|
||||
DEC FXSOFTLEN ; Dec. counter
|
||||
CLC
|
||||
RTS
|
||||
KEYREAD2 JSR KBDREAD ; Fetch character from KBD "buffer"
|
||||
BCS KEYREADOK ; Nothing pending
|
||||
JSR EXTENDKBD ; Handle ADB Extended Keyboard f-keys
|
||||
TAY ; Y=unmodified character
|
||||
BPL KEYREADOK ; Not top-bit key
|
||||
AND #$CF ; Drop Shift/Ctrl bits
|
||||
|
|
@ -576,11 +538,10 @@ KEYSOFTY TYA ; Get key including Shift/Ctrl
|
|||
CLC
|
||||
RTS
|
||||
|
||||
|
||||
* Expand soft key
|
||||
* On entry: Y key code ($8n where n is F-key num)
|
||||
* On entry: Y=key code ($Xn where n is soft key number)
|
||||
KEYEXPAND TYA
|
||||
AND #$0F ; Obtain F-key number
|
||||
AND #$0F ; Obtain soft key number
|
||||
TAX
|
||||
PHX
|
||||
JSR KEYSUMLENS ; Obtain starting offset
|
||||
|
|
@ -591,8 +552,6 @@ KEYEXPAND TYA
|
|||
>>> RDAUX
|
||||
STA FXSOFTLEN
|
||||
RTS
|
||||
* SOFTKEYOFF DB $00
|
||||
|
||||
|
||||
* Process cursor keys
|
||||
KEYCURSOR CMP #$C9
|
||||
|
|
@ -624,14 +583,18 @@ KEYCOPYTAB LDA FXTABCHAR ; Prepare TAB if no copy cursor
|
|||
* KBDREAD
|
||||
************************
|
||||
* Test for and fetch key from keyboard
|
||||
* Updated for ADB keyboards
|
||||
*
|
||||
* On exit, CS=no keypress
|
||||
* CC=keypress
|
||||
* A =keycode, X=corrupted
|
||||
* Apple+Letter -> Ctrl+Letter
|
||||
* Apple+Digits -> 80+x, 90+x, A0+x
|
||||
* TAB -> $C9
|
||||
* Cursors -> $CC-$CF
|
||||
* Apple+Letter -> Ctrl+Letter
|
||||
* AppleL+digit -> 80+x
|
||||
* AppleR+digit -> 90+x
|
||||
* AppleLR+digit -> A0+x
|
||||
* TAB -> $C9
|
||||
* Cursors -> $CC-$CF
|
||||
* Keypad -> PADBASE+key
|
||||
*
|
||||
KBDREAD CLV ; VC=return keypress
|
||||
KBDTEST LDA KBDDATA ; VS here to test for keypress
|
||||
|
|
@ -640,46 +603,72 @@ KBDTEST LDA KBDDATA ; VS here to test for keypress
|
|||
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
|
||||
CMP #$08
|
||||
BCC KBDCHKESC ; <$08 not cursor key
|
||||
CMP #$0C
|
||||
BCC KBDCURSR ; $08-$0B are cursor keys
|
||||
CMP #$15
|
||||
BNE KBDCHKESC ; $15 is cursor key
|
||||
KBDREAD2 TAX ; X=raw keypress
|
||||
*
|
||||
KBDCUR15 LDA #$0D ; Convert RGT to $09
|
||||
KBDTAB SBC #$04 ; Convert TAB to &C9
|
||||
KBDCURSR CLC
|
||||
ADC #$C4 ; Cursor keys $C0+x
|
||||
BRA KBDCHKESC
|
||||
* Set FXKBDSTATE to %x0CS0000 from Alt or Shift keys
|
||||
LDA KBDAPPRGT ; Right Apple/Alt pressed
|
||||
ASL A
|
||||
LDA KBDAPPLFT ; Left Apple/Alt pressed
|
||||
ROR A ; b7=Right, b6=Left
|
||||
AND #$C0
|
||||
LSR A
|
||||
LSR A
|
||||
PHP ; Save EQ=no ALTs pressed
|
||||
BEQ KBDREAD2A
|
||||
ADC #$F0 ; Convert into fkey modifer
|
||||
KBDREAD2A STA FXKBDSTATE
|
||||
BIT VDUBANK
|
||||
BPL KBDREAD5 ; Not IIgs
|
||||
LDA KBDMOD ; Get extended KBD state
|
||||
PLP
|
||||
PHP
|
||||
BNE KBDREAD2B ; ALTs pressed, skip
|
||||
PHA ; Save b4=Keypad
|
||||
ASL A
|
||||
ASL A
|
||||
ASL A
|
||||
ASL A ; b5=Ctrl, b4=Shift
|
||||
AND #$30
|
||||
STA FXKBDSTATE
|
||||
PLA
|
||||
*
|
||||
KBDREAD2B AND #$10
|
||||
BEQ KBDREAD5 ; Not keypad
|
||||
PLP ; Drop NoALT
|
||||
TXA ; A=raw keypress
|
||||
LDX FXKEYPADBASE
|
||||
BEQ KBDCHKESC ; $00=use unchanged
|
||||
BPL KBDREAD4 ; Keypad not function keys
|
||||
CMP #$20
|
||||
BCC KBDCHKESC ; Don't translate control chars
|
||||
CMP #$3D
|
||||
BNE KBDREAD3 ; Special case for KP'='
|
||||
DEC A
|
||||
KBDREAD3 ORA #$30 ; Ensure $30-$3F
|
||||
KBDREAD4 SEC
|
||||
SBC #$30 ; Convert to offset from $30
|
||||
CLC
|
||||
ADC FXKEYPADBASE ; Add to keypad base
|
||||
BRA KBDREAD6
|
||||
|
||||
KBDRALT ; Right Apple key pressed
|
||||
KBDLALT CMP #$40 ; Left Apple key pressed
|
||||
BCS KBDCTRL
|
||||
KBDREAD5 TXA ; A=raw keypress
|
||||
PLP
|
||||
BEQ KBDNOALT ; No ALTs pressed
|
||||
*
|
||||
KBDALT CMP #$40
|
||||
BCS KBDCTRL ; 'A'+ Alt+letter ->Control code
|
||||
CMP #$30
|
||||
BCC KBDCHKESC ; <'0'
|
||||
BCC KBDCHKESC ; <'0' Alt+nondigit -> keep
|
||||
CMP #$3A
|
||||
BCS KBDCHKESC ; >'9'
|
||||
KBDFUNC AND #$0F ; Convert Apple-Num to function key
|
||||
ORA #$80
|
||||
KBDFUNC2 BIT KBDAPPRGT
|
||||
BPL KBDCHKESC ; Left+Digit -> $8x
|
||||
ORA #$90 ; Right+Digit -> $9x
|
||||
BIT KBDAPPLFT
|
||||
BPL KBDCHKESC
|
||||
EOR #$30 ; Left+Right+Digit -> $Ax
|
||||
BRA KBDCHKESC
|
||||
|
||||
KBDCTRL AND #$1F ; Apple-Letter -> Ctrl-Letter
|
||||
BCS KBDCHKESC ; >'9' Alt+nondigit -> keep
|
||||
ORA #$80 ; Alt+digit -> function key
|
||||
*
|
||||
KBDREAD6 BPL KBDCHKESC ; Not a top-bit key
|
||||
KBDFUNC AND #$CF ; Clear Ctrl+Shift bits
|
||||
ORA FXKBDSTATE ; Add in Ctrl+Shift
|
||||
*
|
||||
* Test for Escape character
|
||||
KBDCHKESC TAX ; X=keycode
|
||||
KBDCHKESC TAX ; X=processed keycode
|
||||
EOR FXESCCHAR ; Current ESCAPE char?
|
||||
ORA FXESCON ; Is ESCAPE an ASCII char?
|
||||
BNE KBDNOESC ; Not ESCAPE or ESCAPE=ASCII
|
||||
|
|
@ -692,6 +681,24 @@ KBDNOESC TXA ; A=keycode
|
|||
CLC ; CLC=Ok
|
||||
KBDDONE RTS
|
||||
|
||||
* Moved here to reduce BRx ranges
|
||||
KBDCTRL AND #$1F ; Apple-Letter -> Ctrl-Letter
|
||||
BRA KBDCHKESC
|
||||
|
||||
KBDNOALT CMP #$09
|
||||
BEQ KBDTAB ; TAB is dual action TAB/COPY
|
||||
CMP #$08
|
||||
BCC KBDCHKESC ; <$08 not cursor key
|
||||
CMP #$0C
|
||||
BCC KBDCURSR ; $08-$0B are cursor keys
|
||||
CMP #$15
|
||||
BNE KBDCHKESC ; $15 is cursor key
|
||||
KBDCUR15 LDA #$0D ; Convert RGT to $09
|
||||
KBDTAB SBC #$04 ; Convert TAB to &C9
|
||||
KBDCURSR CLC
|
||||
ADC #$C4 ; Cursor keys $C0+x
|
||||
BRA KBDFUNC
|
||||
|
||||
|
||||
* Poll the keyboard to update Escape state
|
||||
* On exit, MI=Escape state pending
|
||||
|
|
|
|||
Loading…
Reference in New Issue