mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-29 00:31:52 +00:00
53 lines
621 B
ArmAsm
53 lines
621 B
ArmAsm
|
|
;======================
|
|
; hgr 1x8 draw sprite
|
|
;======================
|
|
; SPRITE in INL/INH
|
|
; Location at CURSOR_X CURSOR_Y*7
|
|
; X, Y, A trashed
|
|
|
|
hgr_draw_sprite_1x8:
|
|
|
|
; set up pointers
|
|
lda INL
|
|
sta hds_smc1+1
|
|
lda INH
|
|
sta hds_smc1+2
|
|
|
|
ldx #0
|
|
hgr_1x8_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)
|
|
|
|
tax
|
|
lda hposn_low,X
|
|
sta GBASL
|
|
lda hposn_high,X
|
|
sta GBASH
|
|
|
|
|
|
pla
|
|
tax
|
|
|
|
ldy CURSOR_X
|
|
|
|
lda (GBASL),Y
|
|
hds_smc1:
|
|
eor $D000,X ; not $0000 or it will make it ZP
|
|
sta (GBASL),Y
|
|
|
|
inx
|
|
cpx #8
|
|
bne hgr_1x8_sprite_yloop
|
|
|
|
rts
|