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fixed & adapted for cc65
git-svn-id: svn://svn.cc65.org/cc65/trunk@442 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cpg
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@ -1,5 +1,6 @@
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;--------------------------------------------------------------------
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; Atari 8-bit mouse routines -- 05/07/2000 Freddy Offenga
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; Some changes by Christian Groessler
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;
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; The following devices are supported:
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; - Atari trak-ball
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@ -12,9 +13,9 @@
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.export _mouse_init, _mouse_done, _mouse_box
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.export _mouse_show, _mouse_hide, _mouse_move
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.export _mouse_down
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.export _mouse_buttons
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.import popa
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.import popa,popax
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.include "atari.inc"
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@ -23,13 +24,13 @@ ST_MOUSE = 1 ; device ST mouse
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AMIGA_MOUSE = 2 ; device Amiga mouse
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MAX_TYPE = 3 ; first illegal device type
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; the default values force the mouse cursor inside the test screen (no access to border)
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defxmin = 48 ; default x minimum
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defymin = 32 ; default y minimum
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defxmax = 204 ; default x maximum
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defymax = 211 ; default y maximum
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pmsize = 16 ; size pm shape
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pmsize = 16 ; y size pm shape
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xinit = 100 ; init. x pos.
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yinit = 100 ; init. y pos.
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@ -39,19 +40,16 @@ pm0 = pmb+$400 ; pm 0 memory
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;--------------------------------------------------------------------
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; Initialize mouse routines
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; int mouse_init(unsigned char type, unsigned char port)
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; void __fastcall__ mouse_init (unsigned char port, unsigned char sprite, unsigned char type);
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_mouse_init:
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ldy #0
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sta (SAVMSC),y
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sta port_nr
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pha ; remember mouse type
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jsr popa ; ignore sprite / pm for now
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jsr popa
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ldy #1
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sta (SAVMSC),y
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sta mouse_type
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sta port_nr
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pla ; get mouse type again
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ldx mouse_type
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cpx #MAX_TYPE
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cmp #MAX_TYPE+1
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bcc setup
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ifail:
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@ -60,26 +58,12 @@ ifail:
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rts
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setup:
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tax
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lda lvectab,x
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sta mouse_vec+1
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lda hvectab,x
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sta mouse_vec+2
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lda #defxmin
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sta xmin
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lda #defymin
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sta ymin
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lda #defxmax
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sta xmax
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lda #defymax
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sta ymax
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lda #xinit
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sta mousex
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lda #yinit
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sta mousey
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jsr pminit
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lda VTIMR1
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@ -160,25 +144,25 @@ _mouse_done:
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;--------------------------------------------------------------------
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; Set mouse limits
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; void mouse_box(char xmin, char ymin, char xmax, char ymax)
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; void __fastcall__ mouse_box(int xmin, int ymin, int xmax, int ymax)
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_mouse_box:
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sta ymax
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jsr popa
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jsr popax ; always ignore high byte
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sta xmax
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jsr popa
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jsr popax
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sta ymin
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jsr popa
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jsr popax
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sta xmin
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rts
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;--------------------------------------------------------------------
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; Set mouse position
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; void mouse_move(char xpos, char ypos)
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; void __fastcall__ mouse_move(int xpos, int ypos)
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_mouse_move:
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sta mousey
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jsr popa
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sta mousey ; always ignore high byte
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jsr popax
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sta mousex
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rts
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@ -202,14 +186,14 @@ _mouse_hide:
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;--------------------------------------------------------------------
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; Ask mouse button
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; int mouse_down(void)
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; unsigned char mouse_buttons(void)
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_mouse_down:
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_mouse_buttons:
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ldx port_nr
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lda STRIG0,x
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bne nobut
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lda #14
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sta COLOR1
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; lda #14
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;??? sta COLOR1
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ldx #0
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lda #1
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rts
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@ -341,17 +325,19 @@ t1_vec: tya
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txa
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pha
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.ifdef DEBUG
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lda RANDOM
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sta COLBK ; debug
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.endif
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lda port_nr
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lsr ; even number 0/2
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tay
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lda PORTA,y
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ldy port_nr
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cpy #1
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cpy #0
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beq oddp
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cpy #3
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cpy #2
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beq oddp
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lsr
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@ -361,7 +347,7 @@ t1_vec: tya
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oddp: tay
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mouse_vec:
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jsr st_check ; will be modified
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jsr st_check ; will be modified; won't be ROMmable
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pla
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tax
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@ -413,7 +399,7 @@ mon: jsr drwpm
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moff: sta GRACTL
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vbi_jmp:
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jmp SYSVBV ; will be modified
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jmp SYSVBV ; will be modified; won't be ROMmable
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;--------------------------------------------------------------------
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; initialize mouse pm
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@ -459,21 +445,20 @@ fmp2: lda mskpm,y
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;--------------------------------------------------------------------
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; clear old mouse pm
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clrpm: lda omy
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clrpm: lda omy
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tax
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ldy #0
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ldy #0
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tya
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fmp1: sta pm0,x
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fmp1: sta pm0,x
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inx
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iny
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cpy #pmsize
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bne fmp1
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cpy #pmsize
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bne fmp1
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rts
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;--------------------------------------------------------------------
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.data
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.rodata
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; mouse arrow - pm shape
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@ -518,30 +503,28 @@ lvectab:
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hvectab:
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.byte >trak_check, >st_check, >amiga_check
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; default values
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xmin: .byte defxmin
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ymin: .byte defymin
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xmax: .byte defxmax
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ymax: .byte defymax
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mousex: .byte xinit
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mousey: .byte yinit
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;--------------------------------------------------------------------
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.bss
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; Misc. vars
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old_t1: .res 2
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old_t1: .res 2 ; old timer interrupt vector
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oldval: .res 1 ; used by trakball routines
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dumx: .res 1
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dumy: .res 1
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oldval: .res 1
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omy: .res 1
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mousex: .res 1
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mousey: .res 1
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xmin: .res 1
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ymin: .res 1
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xmax: .res 1
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ymax: .res 1
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omy: .res 1 ; old y pos
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mouse_on:
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.res 1
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mouse_type:
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.res 1
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port_nr:
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.res 1
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