mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-29 00:31:52 +00:00
178 lines
1.9 KiB
ArmAsm
178 lines
1.9 KiB
ArmAsm
|
|
;======================
|
|
; hgr 14x14 draw sprite
|
|
;======================
|
|
; SPRITE in INL/INH
|
|
; Location at CURSOR_X CURSOR_Y
|
|
|
|
; left sprite AT INL/INH
|
|
; right sprite at INL/INH + 14
|
|
; left mask at INL/INH + 28
|
|
; right mask at INL/INH + 42
|
|
|
|
hgr_draw_sprite_14x14:
|
|
|
|
; set up pointers
|
|
lda INL
|
|
sta hds_smc1+1
|
|
lda INH
|
|
sta hds_smc1+2
|
|
|
|
clc
|
|
lda INL
|
|
adc #14
|
|
sta hds_smc2+1
|
|
lda INH
|
|
adc #0
|
|
sta hds_smc2+2
|
|
|
|
clc
|
|
lda INL
|
|
adc #28
|
|
sta hds_smc3+1
|
|
lda INH
|
|
adc #0
|
|
sta hds_smc3+2
|
|
|
|
clc
|
|
lda INL
|
|
adc #42
|
|
sta hds_smc4+1
|
|
lda INH
|
|
adc #0
|
|
sta hds_smc4+2
|
|
|
|
|
|
ldx #0
|
|
hgr_14x14_sprite_yloop:
|
|
txa
|
|
pha
|
|
|
|
clc
|
|
adc CURSOR_Y
|
|
|
|
ldx #0
|
|
ldy #0
|
|
|
|
; calc GBASL/GBASH
|
|
jsr HPOSN ; (Y,X),(A) (values stored in HGRX,XH,Y)
|
|
|
|
pla
|
|
tax
|
|
|
|
ldy CURSOR_X
|
|
|
|
lda (GBASL),Y
|
|
hds_smc3:
|
|
and point_mask_l,X
|
|
hds_smc1:
|
|
ora point_sprite_l,X
|
|
sta (GBASL),Y
|
|
|
|
iny
|
|
|
|
lda (GBASL),Y
|
|
hds_smc4:
|
|
and point_mask_r,X
|
|
hds_smc2:
|
|
ora point_sprite_r,X
|
|
sta (GBASL),Y
|
|
|
|
inx
|
|
cpx #14
|
|
bne hgr_14x14_sprite_yloop
|
|
|
|
rts
|
|
|
|
|
|
|
|
;======================
|
|
; save bg 14x14
|
|
;======================
|
|
|
|
save_bg_14x14:
|
|
|
|
ldx #0
|
|
save_yloop:
|
|
txa
|
|
pha
|
|
|
|
clc
|
|
adc CURSOR_Y
|
|
|
|
ldx #0
|
|
ldy #0
|
|
|
|
; calc GBASL/GBASH
|
|
jsr HPOSN ; (Y,X),(A) (values stored in HGRX,XH,Y)
|
|
|
|
pla
|
|
tax
|
|
|
|
ldy CURSOR_X
|
|
|
|
lda (GBASL),Y
|
|
sta save_left_14x14,X
|
|
|
|
iny
|
|
|
|
lda (GBASL),Y
|
|
sta save_right_14x14,X
|
|
|
|
inx
|
|
cpx #14
|
|
bne save_yloop
|
|
|
|
rts
|
|
|
|
;======================
|
|
; restore bg 14x14
|
|
;======================
|
|
|
|
restore_bg_14x14:
|
|
|
|
ldx #0
|
|
restore_yloop:
|
|
txa
|
|
pha
|
|
|
|
clc
|
|
adc CURSOR_Y
|
|
|
|
ldx #0
|
|
ldy #0
|
|
|
|
; calc GBASL/GBASH
|
|
jsr HPOSN ; (Y,X),(A) (values stored in HGRX,XH,Y)
|
|
|
|
pla
|
|
tax
|
|
|
|
ldy CURSOR_X
|
|
|
|
lda save_left_14x14,X
|
|
sta (GBASL),Y
|
|
|
|
iny
|
|
|
|
lda save_right_14x14,X
|
|
sta (GBASL),Y
|
|
|
|
|
|
inx
|
|
cpx #14
|
|
bne restore_yloop
|
|
|
|
rts
|
|
|
|
|
|
;====================
|
|
; save area
|
|
;====================
|
|
|
|
save_right_14x14:
|
|
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|
|
|
|
save_left_14x14:
|
|
.byte $00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00,$00
|