mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-06-03 11:29:49 +00:00
258 lines
4.1 KiB
ArmAsm
258 lines
4.1 KiB
ArmAsm
; Plasma Mask
|
|
|
|
; for Lovebyte 2024
|
|
|
|
; by Vince `deater` Weaver / Dsr
|
|
|
|
; originally based on Plasmagoria (GPL3) code by French Touch
|
|
|
|
|
|
.include "hardware.inc"
|
|
.include "zp.inc"
|
|
|
|
lores_colors_fine=$8100
|
|
|
|
;======================================
|
|
; start of code
|
|
;======================================
|
|
|
|
plasma_mask:
|
|
|
|
jsr HGR ; have table gen appear on hgr page1
|
|
bit FULLGR
|
|
|
|
|
|
ldx #0
|
|
load_graphics_loop:
|
|
lda graphics_src_l,X
|
|
sta zx_src_l+1
|
|
lda graphics_src_h,X
|
|
sta zx_src_h+1
|
|
lda graphics_loc,X
|
|
stx XSAVE
|
|
jsr zx02_full_decomp
|
|
ldx XSAVE
|
|
inx
|
|
cpx #4
|
|
bne load_graphics_loop
|
|
|
|
;=================
|
|
; init music
|
|
|
|
lda #0
|
|
sta FRAME
|
|
sta WHICH_TRACK
|
|
|
|
;===================
|
|
; music Player Setup
|
|
|
|
tracker_song = peasant_song
|
|
|
|
; assume mockingboard in slot#4
|
|
|
|
; inline mockingboard_init
|
|
|
|
.include "mockingboard_init.s"
|
|
|
|
.include "tracker_init.s"
|
|
|
|
cli ; start music
|
|
|
|
; jsr make_tables
|
|
|
|
bit LORES ; set lo-res
|
|
|
|
; ============================================================================
|
|
; init lores colors (inline)
|
|
; ============================================================================
|
|
|
|
init_lores_colors:
|
|
ldx #0
|
|
ldy #0
|
|
|
|
init_lores_colors_loop:
|
|
lda lores_colors_lookup,X
|
|
sta lores_colors_fine,Y
|
|
iny
|
|
sta lores_colors_fine,Y
|
|
iny
|
|
sta lores_colors_fine,Y
|
|
iny
|
|
sta lores_colors_fine,Y
|
|
iny
|
|
beq done_init_lores_colors
|
|
|
|
inx
|
|
txa
|
|
and #$f
|
|
tax
|
|
jmp init_lores_colors_loop
|
|
|
|
done_init_lores_colors:
|
|
|
|
;====================================
|
|
; do plasma
|
|
;====================================
|
|
|
|
do_plasma:
|
|
; init
|
|
|
|
|
|
BP3:
|
|
|
|
; ============================================================================
|
|
; Precalculate some values (inlined)
|
|
; ============================================================================
|
|
|
|
precalc:
|
|
lda PARAM1 ; self modify various parts
|
|
sta pc_off1+1
|
|
lda PARAM2
|
|
sta pc_off2+1
|
|
lda PARAM3
|
|
sta pc_off3+1
|
|
lda PARAM4
|
|
sta pc_off4+1
|
|
|
|
; Table1(X) = sin1(PARAM1+X)+sin2(PARAM1+X)
|
|
; Table2(X) = sin3(PARAM3+X)+sin1(PARAM4+X)
|
|
|
|
ldx #$28 ; 40
|
|
pc_b1:
|
|
pc_off1:
|
|
lda sin1
|
|
pc_off2:
|
|
adc sin2
|
|
sta Table1,X
|
|
pc_off3:
|
|
lda sin3
|
|
pc_off4:
|
|
adc sin1
|
|
sta Table2,X
|
|
|
|
inc pc_off1+1
|
|
inc pc_off2+1
|
|
inc pc_off3+1
|
|
inc pc_off4+1
|
|
|
|
dex
|
|
bpl pc_b1
|
|
|
|
inc PARAM1
|
|
inc PARAM1
|
|
dec PARAM2
|
|
inc PARAM3
|
|
dec PARAM4
|
|
|
|
; ============================================================================
|
|
; Display Routines
|
|
; ============================================================================
|
|
|
|
|
|
display_normal:
|
|
|
|
ldx #23 ; lines 0-23 lignes 0-23
|
|
|
|
display_line_loop:
|
|
|
|
txa
|
|
jsr GBASCALC
|
|
|
|
; set up pointer for mask
|
|
|
|
ldy WHICH_TRACK ; CURRENT_EFFECT
|
|
|
|
lda GBASL
|
|
sta INL
|
|
lda GBASH
|
|
|
|
clc
|
|
adc graphics_loc,Y
|
|
sec ; blurgh
|
|
sbc #4 ;
|
|
sta INH
|
|
|
|
ldy #39 ; col 0-39
|
|
|
|
lda Table2,X ; setup base sine value for row
|
|
sta display_row_sin_smc+1
|
|
display_col_loop:
|
|
lda Table1,Y ; load in column sine value
|
|
display_row_sin_smc:
|
|
adc #00 ; add in row value
|
|
|
|
; MASKING happens HERE
|
|
and (INL),Y
|
|
|
|
sta display_lookup_smc+1 ; patch in low byte of lookup
|
|
display_lookup_smc:
|
|
lda lores_colors_fine ; attention: must be aligned
|
|
sta (GBASL),Y
|
|
dey
|
|
bpl display_col_loop
|
|
dex
|
|
bpl display_line_loop
|
|
|
|
; ============================================================================
|
|
|
|
inc COMPT1
|
|
bne BP3
|
|
|
|
dec COMPT2
|
|
bne BP3
|
|
|
|
beq do_plasma ; bra
|
|
|
|
|
|
|
|
|
|
|
|
;lores_colors_lookup = $F000
|
|
|
|
lores_colors_lookup:
|
|
.byte $00,$88,$55,$99,$ff,$bb,$33,$22,$66,$77,$44,$cc,$ee,$dd,$99,$11
|
|
|
|
|
|
;.include "make_tables.s"
|
|
|
|
|
|
.include "interrupt_handler.s"
|
|
.include "mockingboard_constants.s"
|
|
|
|
.include "zx02_optim.s"
|
|
|
|
|
|
graphics_src_l:
|
|
.byte <dsr_empty,<dsr_small,<dsr_big,<dsr_big2
|
|
graphics_src_h:
|
|
.byte >dsr_empty,>dsr_small,>dsr_big,>dsr_big2
|
|
|
|
graphics_loc:
|
|
.byte $A0,$A4,$A8,$AC
|
|
|
|
; graphics
|
|
dsr_big:
|
|
.incbin "graphics/dsr_big.gr.zx02"
|
|
dsr_big2:
|
|
.incbin "graphics/dsr_big2.gr.zx02"
|
|
dsr_small:
|
|
.incbin "graphics/dsr_small.gr.zx02"
|
|
dsr_empty:
|
|
.incbin "graphics/dsr_empty.gr.zx02"
|
|
|
|
; music
|
|
.include "mA2E_2.s"
|
|
|
|
|
|
|
|
;sin1 = $2000
|
|
;sin2 = $2100
|
|
;sin3 = $2200
|
|
save = $2300
|
|
|
|
.align $100
|
|
sin1:
|
|
.incbin "precalc/tables"
|
|
sin2=sin1+$100
|
|
sin3=sin1+$200
|