mirror of
https://github.com/deater/dos33fsprogs.git
synced 2025-01-01 05:31:52 +00:00
158 lines
2.2 KiB
ArmAsm
158 lines
2.2 KiB
ArmAsm
; Print-shop Style THINKING
|
|
|
|
; by Vince `deater` Weaver <vince@deater.net>
|
|
|
|
.include "zp.inc"
|
|
.include "hardware.inc"
|
|
|
|
COL = $F0
|
|
XSTART = $F1
|
|
XSTOP = $F2
|
|
YSTART = $F3
|
|
YSTOP = $F4
|
|
OFFSET = $F5
|
|
CURRENT = $F6
|
|
YY = $F7
|
|
XS = $F8
|
|
|
|
thinking:
|
|
|
|
jsr SETGR ; set lo-res 40x40 mode
|
|
; A=$D0 afterward
|
|
|
|
big_loop:
|
|
|
|
; COL value doesn't matter?
|
|
|
|
lda #0
|
|
sta YSTART
|
|
sta XSTART
|
|
|
|
lda #20
|
|
sta YSTOP
|
|
asl
|
|
sta XSTOP
|
|
|
|
box_loop:
|
|
|
|
ldx YSTART
|
|
yloop:
|
|
txa
|
|
jsr GBASCALC ; take Y-coord/2 in A, put address in GBASL/H ( a trashed, C clear)
|
|
|
|
|
|
lda COL
|
|
and #$7
|
|
tay
|
|
lda color_lookup,Y
|
|
sta COLOR
|
|
|
|
;======================
|
|
;======================
|
|
; inner loop begin
|
|
; Y=xx
|
|
; X=yy
|
|
|
|
|
|
ldy XSTART
|
|
xloop:
|
|
stx XS
|
|
tya
|
|
lsr
|
|
lsr
|
|
lsr
|
|
tax
|
|
lda thinking_data,X
|
|
sta CURRENT
|
|
|
|
tya
|
|
and #$7
|
|
tax
|
|
bloop:
|
|
ror CURRENT
|
|
dex
|
|
bne bloop
|
|
ldx XS
|
|
|
|
bcs dont_draw
|
|
|
|
lda COLOR
|
|
sta (GBASL),Y
|
|
|
|
dont_draw:
|
|
iny
|
|
cpy XSTOP
|
|
bne xloop
|
|
|
|
; inner loop end
|
|
;======================
|
|
;======================
|
|
|
|
|
|
inx
|
|
cpx YSTOP
|
|
bne yloop
|
|
|
|
inc COL
|
|
|
|
inc XSTART
|
|
dec XSTOP
|
|
|
|
inc YSTART
|
|
dec YSTOP
|
|
lda YSTOP
|
|
cmp #10
|
|
bne box_loop
|
|
|
|
;==========================
|
|
; done drawing rainbow box
|
|
;==========================
|
|
|
|
;==========================
|
|
; wait a bit
|
|
;==========================
|
|
|
|
lda #255
|
|
jsr WAIT
|
|
|
|
;===================
|
|
; increment color
|
|
; after loop we are +10
|
|
; so -1 actually means increment 1 (because we mod 8 it)
|
|
dec COL
|
|
|
|
jmp big_loop
|
|
|
|
|
|
;0 1 2 3 3
|
|
;01234567|89012345|67890123|45678901|23456789
|
|
; ***** *| * * * | * * |* * * |* ***
|
|
; * *| * * **| * * *| * ** |* * *
|
|
; * *| * * **| * * * | * ** |* *
|
|
; * *|*** * * |* * ** | * * * |* *
|
|
; * *| * * * | ** * * | * * *|* * **
|
|
; * *| * * * | ** * *| * * *|* * *
|
|
; * *| * * * | * * |* * * |* ****
|
|
;
|
|
; 7*5 bytes = 35 bytes
|
|
|
|
thinking_data:
|
|
.byte $BE,$54,$14,$15,$39
|
|
.byte $88,$D4,$94,$34,$45
|
|
.byte $88,$D4,$54,$34,$05
|
|
.byte $88,$57,$35,$54,$05
|
|
.byte $88,$54,$56,$94,$65
|
|
.byte $88,$54,$96,$94,$45
|
|
.byte $88,$54,$14,$15,$79
|
|
|
|
|
|
|
|
color_lookup:
|
|
; magenta, pink, orange, yellow, lgreen, aqua, mblue, lblue
|
|
.byte $33,$BB,$99,$DD,$CC,$EE,$66,$77
|
|
|
|
|
|
; for apple II bot entry at $3F5
|
|
|
|
jmp thinking
|