Minor tidying of soft key code
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jgharston
GitHub
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131
auxmem.chario.s
131
auxmem.chario.s
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@ -34,6 +34,7 @@
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* combined with EscAck clearing keyboard.
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* 06-Dec-2022 Moved *KEY into here.
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* 12-Dec-2022 Test code to write *KEY data to mainmem.
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* 24-Dec-2022 Minor bit of tidying.
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* Hardware locations
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@ -44,22 +45,26 @@ KBDAPPRGT EQU $C062 ; Right Apple key
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IOVBLNK EQU $C019 ; VBLNK pulse
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FLASHER EQU BYTEVARBASE+176 ; VSync counter for flashing cursor
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FXEXEC EQU BYTEVARBASE+198
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FXSPOOL EQU BYTEVARBASE+199
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FXEXEC EQU BYTEVARBASE+198 ; *EXEC handle
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FXSPOOL EQU BYTEVARBASE+199 ; *SPOOL handle
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FXTABCHAR EQU BYTEVARBASE+219
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FXESCCHAR EQU BYTEVARBASE+220
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FXKEYBASE EQU BYTEVARBASE+221
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FXESCON EQU BYTEVARBASE+229
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FXESCEFFECT EQU BYTEVARBASE+230
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FX200VAR EQU BYTEVARBASE+200
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FXSOFTLEN EQU BYTEVARBASE+216
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FXSOFTOK EQU BYTEVARBASE+244
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FXTABCHAR EQU BYTEVARBASE+219 ; Char for TAB key to return
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FXESCCHAR EQU BYTEVARBASE+220 ; Char to match as Escape key
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FXKEYBASE EQU BYTEVARBASE+221 ; Base of char &80+ translations
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FXESCON EQU BYTEVARBASE+229 ; Escape key is ASC or ESC
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FXESCEFFECT EQU BYTEVARBASE+230 ; Actions when Escape acknowledged
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FX200VAR EQU BYTEVARBASE+200 ; Completely ignore CHR$(escape)
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FXSOFTLEN EQU BYTEVARBASE+216 ; Length of current soft key
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FXSOFTOFF EQU BYTEVARBASE+233 ; Offset to current soft key
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FXSOFTOK EQU BYTEVARBASE+244 ; Soft keys not unstable
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FX254VAR EQU BYTEVARBASE+254
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FX2VAR EQU BYTEVARBASE+$B1
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FX3VAR EQU BYTEVARBASE+$EC
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FX4VAR EQU BYTEVARBASE+$ED
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FX254VAR EQU BYTEVARBASE+254 ; Keyboard map
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FX2VAR EQU BYTEVARBASE+$B1 ; Input stream
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FX3VAR EQU BYTEVARBASE+$EC ; Output streams
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FX4VAR EQU BYTEVARBASE+$ED ; Cursor key state
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* FKEYLENS defined in mainmem.misc.s ; Length of soft key definitions
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* FKEYBUF defined in mainmem.misc.s ; Base of soft key definitions
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* OSWRCH handler
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@ -102,18 +107,17 @@ DEFBYTE DB $09,$1B ; Default key codes
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DB $01,$80,$90,$00 ; Default key expansion
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DEFBYTEEND
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KBDINIT LDX #DEFBYTEEND-DEFBYTE-1
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:KBDINITLP LDA DEFBYTE,X ; Initialise KBD OSBYTE variables
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STA BYTEVARBASE+DEFBYTELOW,X
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DEX
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BPL :KBDINITLP
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JSR SOFTKEYCHK ; Clear soft keys
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LDX #$C3
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LDX #$C0
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STX FX254VAR ; b7-b4=default KBD map, b3-b0=default MODE
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BIT SETV ; Set V
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JSR KBDTEST ; Test if key being pressed
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BCS :KBDINITOK ; Return default MODE=3
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BCS :KBDINITOK ; Return default MODE=0
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STA KBDACK ; Ack. keypress
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TAX ; Use keypress as default MODE
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:KBDINITOK TXA
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@ -440,72 +444,25 @@ MOVELEN DB $00 ; # bytes remaining to move
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* ----------------------------
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SOFTKEYCHK LDA FXSOFTOK
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BEQ BYTE12OK ; Soft keys ok, exit
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BYTE12 LDX #$FF
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STX FXSOFTOK ; Soft keys being updated
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:L1 >>> WRTMAIN ; Zero the buffer (nice when debugging)
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STZ FKEYBUF,X
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>>> WRTAUX
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DEX
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BNE :L1
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BYTE12
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* LDX #$FF
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* STX FXSOFTOK ; Soft keys being updated
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*:L1 >>> WRTMAIN ; Zero the buffer (nice when debugging)
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* STZ FKEYBUF,X
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* >>> WRTAUX
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* DEX
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* BNE :L1
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LDX #15
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:L2 >>> WRTMAIN ; Zero the lengths
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STZ FKEYLENS,X
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>>> WRTAUX
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STX FXSOFTOK ; Soft keys being updated
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>>> WRTMAIN ; Short enough to page for whole loop
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:L2 STZ FKEYLENS,X ; Zero the lengths
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DEX
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BNE :L2
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>>> WRTAUX
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STZ FXSOFTOK ; Soft keys updated
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BYTE12OK RTS
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* Handle function keys on ADB Extended Keyboard & BMOW Wombat
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* For Apple IIGS only
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EXTENDKBD BIT VDUBANK ; Use VDUBANK to see if ...
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BMI :GS ; ... this is a GS
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RTS ; If not, bail
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:GS PHA ; Preserve character typed
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LDA KEYMOD ; GS-specific register
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AND #$10 ; Bit 4 is the 'keypad bit'
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BEQ :NOTKEYPAD ; Not an extended key
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PLA
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LDX #$00
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:LOOP CMP :TABLE,X ; Lookup keycode in table
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BEQ :FOUND
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INX
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INX
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CPX #20 ; 10 rows of two bytes each
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BNE :LOOP
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RTS ; Not found, return unchanged
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:FOUND LDA KEYMOD ; Look at the modifiers
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AND #$C3 ; Mask only the modifier bits
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CMP #$01 ; Only shift pressed
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BNE :S1
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LDA #$10 ; Offset for shift+f-key
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BRA :S2
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:S1 CMP #$02 ; Onlt ctrl pressed
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BNE :S2
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LDA #$20 ; Offset for ctrl+f-key
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:S2 CLC
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ADC :TABLE+1,X ; Lookup translation + add
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RTS
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* TODO Add $10 if shift is down
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* TODO Add $20 if ctrl is down
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RTS
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:NOTKEYPAD PLA ; Get original key back
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RTS
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:TABLE DB $7A, $81 ; Extended keyboard F1 code -> f1
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DB $78, $82 ; Extended keyboard F2 code -> f2
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DB $63, $83 ; Extended keyboard F3 code -> f3
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DB $76, $84 ; Extended keyboard F4 code -> f4
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DB $60, $85 ; Extended keyboard F5 code -> f5
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DB $61, $86 ; Extended keyboard F6 code -> f6
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DB $62, $87 ; Extended keyboard F7 code -> f7
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DB $64, $88 ; Extended keyboard F8 code -> f8
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DB $65, $89 ; Extended keyboard F9 code -> f9
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DB $6D, $80 ; Extended keyboard F10 code -> f0
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* KEYREAD
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************************
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* Test for and read from input,
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@ -521,19 +478,18 @@ KEYREAD LDY FXEXEC ; See if EXEC file is open
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LDA #$00 ; EOF, close EXEC file
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STA FXEXEC ; Clear EXEC handle
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JSR OSFIND ; And close it
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KEYREAD1 LDA FXSOFTLEN ; Are we replaying a function key?
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BEQ KEYREAD2 ; No, skip over
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LDX SOFTKEYOFF ; Obtain current f-key buffer offset
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KEYREAD1 LDA FXSOFTLEN
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BEQ KEYREAD2
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LDX FXSOFTOFF ; SOFTKEYOFF
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>>> RDMAIN
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LDA FKEYBUF,X ; Read char from buf in main mem
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LDA FKEYBUF,X
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>>> RDAUX
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INC SOFTKEYOFF ; Next char in buffer
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DEC FXSOFTLEN ; One less char remaining
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INC FXSOFTOFF ; SOFTKEYOFF
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DEC FXSOFTLEN
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CLC
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RTS
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KEYREAD2 JSR KBDREAD ; Fetch character from KBD "buffer"
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BCS KEYREADOK ; Nothing pending
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JSR EXTENDKBD ; Handle ADB Extended Keyboard f-keys
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TAY ; Y=unmodified character
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BPL KEYREADOK ; Not top-bit key
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AND #$CF ; Drop Shift/Ctrl bits
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@ -550,7 +506,6 @@ KEYREAD2 JSR KBDREAD ; Fetch character from KBD "buffer"
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KEYREADOK1 CLC
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KEYREADOK RTS
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* Process soft key
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KEYSOFTHI LDX FX254VAR
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CPX #$C0
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@ -568,7 +523,7 @@ KEYSOFTY TYA ; Get key including Shift/Ctrl
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LDA FXKEYBASE-8,X
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BEQ KEYNONE ; Value 0 means 'ignore key'
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DEC A
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BEQ EXPANDKEY ; Value 1 means 'expand key'
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BEQ KEYEXPAND ; Value 1 means 'expand key'
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TYA
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AND #$0F
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CLC
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@ -579,19 +534,19 @@ KEYSOFTY TYA ; Get key including Shift/Ctrl
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* Expand soft key
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* On entry: Y key code ($8n where n is F-key num)
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EXPANDKEY TYA
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KEYEXPAND TYA
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AND #$0F ; Obtain F-key number
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TAX
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PHX
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JSR KEYSUMLENS ; Obtain starting offset
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STA SOFTKEYOFF
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STA FXSOFTOFF ; SOFTKEYOFF
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PLX
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>>> RDMAIN
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LDA FKEYLENS,X ; Obtain length of *KEY string
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>>> RDAUX
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STA FXSOFTLEN
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RTS
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SOFTKEYOFF DB $00
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* SOFTKEYOFF DB $00
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* Process cursor keys
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