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Joshua Bell
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client/client.list
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client/client.list
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@ -0,0 +1,293 @@
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;;;-------------------------------------------------------------------
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;;;
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;;; Mouse
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;;;
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;;;-------------------------------------------------------------------
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.error "Mouse support not fully implemented"
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.proc Mouse
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;;;--------------------------------------------------
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;;; Locations and constants
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;;;--------------------------------------------------
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;;; For READMOUSE and POSMOUSE
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MOUSE_X_LSB = $0478 ; + slot Low byte of absolute X position
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MOUSE_X_MSB = $0578 ; + slot High byte of absolute X position
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MOUSE_Y_LSB = $04F8 ; + slot Low byte of absolute Y position
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MOUSE_Y_MSB = $05F8 ; + slot High byte of absolute Y position
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MOUSE_RSV1 = $0678 ; + slot Reserved and used by the firmware
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MOUSE_RSV2 = $06F8 ; + slot Reserved and used by the firmware
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MOUSE_BTN = $0778 ; + slot Button 0/1 interrupt status byte
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MOUSE_MODE = $07F8 ; + slot Mode byte
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;;; For CLAMPMOUSE:
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MOUSE_CMIN_LSB = $0478 ; low byte of low clamp
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MOUSE_CMIN_MSB = $0578 ; high byte of low clamp
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MOUSE_CMAX_LSB = $04F8 ; low byte of high clamp
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MOUSE_CMAX_MSB = $05F8 ; high byte of high clamp
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MOUSE_CLAMP_X = 0 ; Value for A when setting X clamp with CLAMPMOUSE
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MOUSE_CLAMP_Y = 1 ; Value for A when setting X clamp with CLAMPMOUSE
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;;; Mouse ID bytes
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MOUSEID_MAX = 4
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MOUSEID_ADDR: .byte $05, $07, $0b, $0c, $fb
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MOUSEID_VAL: .byte $38, $18, $01, $20, $d6
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;;;--------------------------------------------------
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;;; Data
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;;;--------------------------------------------------
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;;; Mouse
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MOUSE_SLOT: .byte 0 ; mouse slot, or 0 if none
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LAST_MX: .byte $7f
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LAST_MY: .byte $7f
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;;;--------------------------------------------------
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;;; Routines
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;;;--------------------------------------------------
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MOUSEPTR = $EB ; Zero page location
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MOUSE_MIN_X = $10
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MOUSE_MAX_X = $1f
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MOUSE_CENTER_X = $17
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MOUSE_MIN_Y = $20
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MOUSE_MAX_Y = $2f
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MOUSE_CENTER_Y = $2f
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;;;--------------------------------------------------
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;;; Macros for common mouse operations
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;;;--------------------------------------------------
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;;;----------------------------------------
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.macro ClampMouse axis, min, max
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;;;----------------------------------------
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;;; axis: MOUSE_CLAMP_X or MOUSE_CLAMP_Y
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;;; min: minimum value (2 byte)
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;;; max: maximum value (2 byte)
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;;;----------------------------------------
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; Clamp X to 0...255
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lda #<min
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sta MOUSE_CMIN_LSB
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lda #>min
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sta MOUSE_CMIN_MSB
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lda #<max
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sta MOUSE_CMAX_LSB
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lda #>max
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sta MOUSE_CMAX_MSB
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lda #axis
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jsr CLAMPMOUSE
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.endmacro
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;;;----------------------------------------
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.macro PosMouse px, py
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;;;----------------------------------------
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ldx MOUSE_SLOT
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lda #<px
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sta MOUSE_X_LSB,X
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lda #>px
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sta MOUSE_X_MSB,X
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lda #<py
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sta MOUSE_Y_LSB,X
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lda #>py
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sta MOUSE_Y_MSB,X
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jsr POSMOUSE
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.endmacro
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;;;---------------------------------------------------------
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.proc FindMouse
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;;;---------------------------------------------------------
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;;; Find and initialize the mouse port
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;;;---------------------------------------------------------
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;;; Reference: http://home.swbell.net/rubywand/R034MOUSEPRG.TXT
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sei ; No interrupts while we're getting set up
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;
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;;; Step 1: Find the mouse card by scanning slots for ID bytes
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;
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ldy #MAX_SLOT ; Start search in slot 7
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TESTSLOT:
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sty MOUSE_SLOT ; Save for later
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tya
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clc
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adc #>SLOT_BASE ; Firmware is $c0 + slot
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sta MOD_MOUSE_ID + 2 ; Update msb of signature test
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ldx #MOUSEID_MAX ; This many signature bytes
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TESTID:
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lda MOUSEID_ADDR,x
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sta MOD_MOUSE_ID + 1 ; Update lsb of signature test
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MOD_MOUSE_ID:
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lda SLOT_BASE
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cmp MOUSEID_VAL,x ; Does it match the signature?
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bne NOMATCH ; Nope - try the next slot
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dex ; Yes! Keep testing
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bpl TESTID ; Fall through if all done
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jmp FOUND_MOUSE
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NOMATCH:
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dey ; Didn't match
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bne TESTSLOT ; Keep looking until slot 0
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sty MOUSE_SLOT ; Oops, no mouse - make a note
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rts ; and bail
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;
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;;; Step 2: Set up indirect calling routines
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;
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FOUND_MOUSE:
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; Slot is in y
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tya
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ora #>SLOT_BASE ; Compute $Cn - needed for
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sta MOUSEPTR+1 ; MSB of MOUSEPTR ($Cn00)
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sta TOMOUSE_Cn ; X register before firmware calls
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sta TOMOUSE_msb ; MSB of firmware calls
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lda #0
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sta MOUSEPTR ; LSB of MOUSEPTR ($Cn00)
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tya
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asl ; Compute $n0 - needed for
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asl
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asl
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asl
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sta TOMOUSE_n0 ; Y register before firmware calls
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;
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;;; Step 3: Configure the mouse card
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;
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;;; Initialize the mouse for use
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jsr INITMOUSE ; reset, clamp to 0-1023 x/y
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lda #1 ; mouse on, no interrupts
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jsr SETMOUSE ; TODO: test carry bit result (set = error)
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;
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;;; Since we want deltas, clamp and center
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;
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ClampMouse MOUSE_CLAMP_X, MOUSE_MIN_X, MOUSE_MAX_X
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ClampMouse MOUSE_CLAMP_Y, MOUSE_MIN_Y, MOUSE_MAX_Y
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PosMouse MOUSE_CENTER_X, MOUSE_CENTER_Y
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cli ; Enable interrupts so mouse can function
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rts
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.endproc
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;;;--------------------------------------------------
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;;; Indirect jump table for mouse firmware routines
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;;;--------------------------------------------------
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SETMOUSE: ldy #$12
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jmp GoMouse
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SERVEMOUSE: ldy #$13
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jmp GoMouse
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READMOUSE: ldy #$14
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jmp GoMouse
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CLEARMOUSE: ldy #$15
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jmp GoMouse
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POSMOUSE: ldy #$16
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jmp GoMouse
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CLAMPMOUSE: ldy #$17
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jmp GoMouse
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HOMEMOUSE: ldy #$18
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jmp GoMouse
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INITMOUSE: ldy #$19
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jmp GoMouse
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;;;--------------------------------------------------
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.proc GoMouse
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;;;--------------------------------------------------
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tax ; Preserve the value in A
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lda (MOUSEPTR),Y ; Get the routine entry point
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sta TOMOUSE_lsb ; Patch the JMP instruction
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txa ; Restore the value in A
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.endproc
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; fall through
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;;; The following operand bytes must be patched by the
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;;; initialization code which detects the mouse.
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BANK = $C054
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TOMOUSE:
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ldx #$C1 ; Set up slot in $Cn form in X
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ldy #$10 ; Set up slot in $n0 form in Y
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php ; Save interrupt state
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sei ; No interrupts while calling
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bit BANK
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jsr SLOT_BASE ; Go to the mouse routine
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plp ; Restore interrupt state
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rts
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TOMOUSE_Cn = TOMOUSE + 1
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TOMOUSE_n0 = TOMOUSE + 3
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TOMOUSE_lsb = TOMOUSE + 10
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TOMOUSE_msb = TOMOUSE + 11
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;;; TODO: Turn this into a proper delta-sending routine
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;;;--------------------------------------------------
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.proc FOOMOUSE
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;;;--------------------------------------------------
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;
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;;;--------------------------------------------------
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txa ; save x
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pha
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tya ; save y
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pha
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jsr READMOUSE
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jmp DONE
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ldx MOUSE_SLOT
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lda MOUSE_X_LSB,x
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sta LAST_MX
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lda MOUSE_Y_LSB,x
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sta LAST_MY
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lda LAST_MX
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cmp #MOUSE_CENTER_X
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bne SEND
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lda LAST_MY
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cmp #MOUSE_CENTER_Y
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beq DONE
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SEND:
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lda LAST_MX
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ora #SIS_MX
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jsr SSC::Put
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lda LAST_MY
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ora #SIS_MY
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jsr SSC::Put
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PosMouse MOUSE_CENTER_X, MOUSE_CENTER_Y
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DONE:
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pla ; restore y
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tay
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pla ; restore x
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tax
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rts
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.endproc
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.endproc
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@ -0,0 +1,100 @@
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;;;-------------------------------------------------------------------
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;;;
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;;; Serial port routines
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;;;
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;;; (based on ADTPro)
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;;;
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;;;-------------------------------------------------------------------
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.proc SSC
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;;;---------------------------------------------------------
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.proc Init
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;;;---------------------------------------------------------
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;;; Initialize the SSC; slot passed in A
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;;;---------------------------------------------------------
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asl ; Slot passed in A
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asl
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asl
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asl ; Now $S0
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adc #$88 ; Low byte of UADATA
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tax
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lda #CMND_NRDI ; Command register: no parity, RTS on, DTR on, no interrupts
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sta $C002,X
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ldy PSPEED ; Control register: look up by baud rate (8 data bits, 1 stop bit)
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lda BPSCTRL,Y
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sta $C003,X
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stx MOD_UADATA_1+1 ; Modify references to
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stx MOD_UADATA_2+1 ; UADATA to point at
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stx MOD_UADATA_3+1 ; correct slot (UADATA+S0)
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inx
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stx MOD_UASTAT_1+1 ; Modify reference to
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stx MOD_UASTAT_2+1 ; UASTAT to point at
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stx MOD_UASTAT_3+1 ; correct slot (UASTAT+S0)
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rts
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.endproc
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;;;---------------------------------------------------------
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.proc Put
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;;;---------------------------------------------------------
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;;; Send accumulator out the serial port
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;;;---------------------------------------------------------
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pha ; Push A onto the stack
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MOD_UASTAT_1:
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: lda UASTAT ; Check status bits
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and #$70
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cmp #$10
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bne :- ; Output register is full, so loop
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pla
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MOD_UADATA_1:
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sta UADATA ; Put character
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rts
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.endproc
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MOD_UASTAT_1 := Put::MOD_UASTAT_1
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MOD_UADATA_1 := Put::MOD_UADATA_1
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;;;---------------------------------------------------------
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.proc Get
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;;;---------------------------------------------------------
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;;; Read a character from the serial port to the accumulator
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;;;---------------------------------------------------------
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MOD_UASTAT_2:
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lda UASTAT ; Check status bits
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and #$68
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cmp #$8
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bne Get ; Input register empty, loop
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MOD_UADATA_2:
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lda UADATA ; Get character
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rts
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.endproc
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MOD_UASTAT_2 := Get::MOD_UASTAT_2
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MOD_UADATA_2 := Get::MOD_UADATA_2
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;;;---------------------------------------------------------
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.proc HasData
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;;;---------------------------------------------------------
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;;; Read a character from the serial port to the accumulator
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;;;---------------------------------------------------------
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MOD_UASTAT_3:
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lda UASTAT ; Check status bits
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and #$68
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cmp #$8
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rts
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.endproc
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MOD_UASTAT_3 := HasData::MOD_UASTAT_3
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;;;---------------------------------------------------------
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.proc Reset
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;;;---------------------------------------------------------
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;;; Clean up serial port
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;;;---------------------------------------------------------
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MOD_UADATA_3:
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bit UADATA
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rts
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.endproc
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MOD_UADATA_3 := Reset::MOD_UADATA_3
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.endproc
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