Removed (pretty inconsistently used) tab chars from source code base.
This commit is contained in:
Oliver Schmidt
@@ -25,7 +25,7 @@
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.include "zeropage.inc"
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.include "mouse-kernel.inc"
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.include "c64.inc"
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.include "c64.inc"
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.macpack generic
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@@ -92,11 +92,11 @@ SCREEN_WIDTH = 320
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Vars:
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YPos: .res 2 ; Current mouse position, Y
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XPos: .res 2 ; Current mouse position, X
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XMin: .res 2 ; X1 value of bounding box
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YMin: .res 2 ; Y1 value of bounding box
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XMax: .res 2 ; X2 value of bounding box
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YMax: .res 2 ; Y2 value of bounding box
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Buttons: .res 1 ; Button mask
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XMin: .res 2 ; X1 value of bounding box
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YMin: .res 2 ; Y1 value of bounding box
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XMax: .res 2 ; X2 value of bounding box
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YMax: .res 2 ; Y2 value of bounding box
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Buttons: .res 1 ; Button mask
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; Temporary value used in the int handler
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@@ -113,7 +113,7 @@ Temp: .res 1
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.word 0 ; YMin
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.word SCREEN_WIDTH ; XMax
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.word SCREEN_HEIGHT ; YMax
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.byte 0 ; Buttons
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.byte 0 ; Buttons
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.endproc
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.code
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@@ -202,7 +202,7 @@ SETBOX: sta ptr1
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bpl @L1
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cli
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rts
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rts
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;----------------------------------------------------------------------------
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; GETBOX: Return the mouse bounding box. The parameters are passed as they
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@@ -218,7 +218,7 @@ GETBOX: sta ptr1
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dey
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bpl @L1
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rts
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rts
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;----------------------------------------------------------------------------
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; MOVE: Move the mouse to a new position. The position is passed as it comes
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@@ -242,41 +242,41 @@ MOVE: sei ; No interrupts
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lda (sp),y
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sta XPos ; New X position
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jsr CMOVEX ; Move the cursor
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jsr CMOVEX ; Move the cursor
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cli ; Allow interrupts
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rts
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cli ; Allow interrupts
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rts
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;----------------------------------------------------------------------------
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; BUTTONS: Return the button mask in a/x.
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BUTTONS:
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lda Buttons
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ldx #$00
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rts
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lda Buttons
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ldx #$00
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rts
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;----------------------------------------------------------------------------
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; POS: Return the mouse position in the MOUSE_POS struct pointed to by ptr1.
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; No return code required.
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POS: ldy #MOUSE_POS::XCOORD ; Structure offset
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POS: ldy #MOUSE_POS::XCOORD ; Structure offset
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sei ; Disable interrupts
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lda XPos ; Transfer the position
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sta (ptr1),y
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lda XPos+1
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iny
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sta (ptr1),y
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lda YPos
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sei ; Disable interrupts
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lda XPos ; Transfer the position
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sta (ptr1),y
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lda XPos+1
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iny
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sta (ptr1),y
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lda YPos+1
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cli ; Enable interrupts
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lda YPos
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iny
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sta (ptr1),y
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lda YPos+1
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cli ; Enable interrupts
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iny
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sta (ptr1),y ; Store last byte
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rts ; Done
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rts ; Done
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;----------------------------------------------------------------------------
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; INFO: Returns mouse position and current button mask in the MOUSE_INFO
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@@ -287,15 +287,15 @@ POS: ldy #MOUSE_POS::XCOORD ; Structure offset
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; call _mouse_pos to initialize the struct pointer and fill the position
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; fields.
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INFO: jsr POS
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INFO: jsr POS
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; Fill in the button state
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lda Buttons
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ldy #MOUSE_INFO::BUTTONS
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sta (ptr1),y
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lda Buttons
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ldy #MOUSE_INFO::BUTTONS
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sta (ptr1),y
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rts
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rts
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;----------------------------------------------------------------------------
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; IOCTL: Driver defined entry point. The wrapper will pass a pointer to ioctl
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@@ -316,15 +316,15 @@ IOCTL: lda #<MOUSE_ERR_INV_IOCTL ; We don't support ioclts for now
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; Avoid crosstalk between the keyboard and a joystick.
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IRQ: ldy #%00000000 ; Set ports A and B to input
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sty CIA1_DDRB
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sty CIA1_DDRA ; Keyboard won't look like joystick
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lda CIA1_PRB ; Read Control-Port 1
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dec CIA1_DDRA ; Set port A back to output
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eor #%11111111 ; Bit goes up when switch goes down
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beq @Save ;(bze)
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dec CIA1_DDRB ; Joystick won't look like keyboard
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sty CIA1_PRB ; Set "all keys pushed"
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IRQ: ldy #%00000000 ; Set ports A and B to input
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sty CIA1_DDRB
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sty CIA1_DDRA ; Keyboard won't look like joystick
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lda CIA1_PRB ; Read Control-Port 1
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dec CIA1_DDRA ; Set port A back to output
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eor #%11111111 ; Bit goes up when switch goes down
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beq @Save ;(bze)
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dec CIA1_DDRB ; Joystick won't look like keyboard
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sty CIA1_PRB ; Set "all keys pushed"
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@Save: sta Temp
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; Check for a pressed button and place the result into Buttons
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@@ -338,45 +338,45 @@ IRQ: ldy #%00000000 ; Set ports A and B to input
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; Check left/right
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lda Temp ; Read joystick #0
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and #(JOY::LEFT | JOY::RIGHT)
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beq @SkipX ;
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and #(JOY::LEFT | JOY::RIGHT)
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beq @SkipX ;
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; We will cheat here and rely on the fact that either the left, OR the right
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; bit can be active
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and #JOY::RIGHT ; Check RIGHT bit
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bne @Right
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lda #$FF
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tax
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bne @AddX ; Branch always
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@Right: lda #$01
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ldx #$00
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and #JOY::RIGHT ; Check RIGHT bit
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bne @Right
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lda #$FF
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tax
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bne @AddX ; Branch always
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@Right: lda #$01
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ldx #$00
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; Calculate the new X coordinate (--> a/y)
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@AddX: add XPos
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tay ; Remember low byte
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txa
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adc XPos+1
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tax
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tay ; Remember low byte
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txa
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adc XPos+1
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tax
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; Limit the X coordinate to the bounding box
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cpy XMin
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sbc XMin+1
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bpl @L1
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ldy XMin
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ldx XMin+1
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jmp @L2
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@L1: txa
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cpy XMin
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sbc XMin+1
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bpl @L1
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ldy XMin
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ldx XMin+1
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jmp @L2
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@L1: txa
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cpy XMax
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sbc XMax+1
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bmi @L2
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ldy XMax
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ldx XMax+1
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@L2: sty XPos
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stx XPos+1
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cpy XMax
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sbc XMax+1
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bmi @L2
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ldy XMax
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ldx XMax+1
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@L2: sty XPos
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stx XPos+1
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; Move the mouse pointer to the new X pos
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@@ -386,45 +386,45 @@ IRQ: ldy #%00000000 ; Set ports A and B to input
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; Calculate the Y movement vector
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@SkipX: lda Temp ; Read joystick #0
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and #(JOY::UP | JOY::DOWN) ; Check up/down
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beq @SkipY ;
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and #(JOY::UP | JOY::DOWN) ; Check up/down
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beq @SkipY ;
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; We will cheat here and rely on the fact that either the up, OR the down
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; bit can be active
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lsr a ; Check UP bit
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bcc @Down
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lda #$FF
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tax
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bne @AddY
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@Down: lda #$01
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ldx #$00
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lsr a ; Check UP bit
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bcc @Down
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lda #$FF
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tax
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bne @AddY
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@Down: lda #$01
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ldx #$00
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; Calculate the new Y coordinate (--> a/y)
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@AddY: add YPos
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tay ; Remember low byte
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txa
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adc YPos+1
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tax
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@AddY: add YPos
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tay ; Remember low byte
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txa
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adc YPos+1
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tax
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; Limit the Y coordinate to the bounding box
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cpy YMin
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sbc YMin+1
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bpl @L3
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ldy YMin
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ldx YMin+1
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jmp @L4
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@L3: txa
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cpy YMin
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sbc YMin+1
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bpl @L3
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ldy YMin
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ldx YMin+1
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jmp @L4
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@L3: txa
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cpy YMax
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sbc YMax+1
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bmi @L4
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ldy YMax
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ldx YMax+1
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@L4: sty YPos
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stx YPos+1
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cpy YMax
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sbc YMax+1
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bmi @L4
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ldy YMax
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ldx YMax+1
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@L4: sty YPos
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stx YPos+1
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; Move the mouse pointer to the new X pos
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