mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-07-10 18:29:11 +00:00
236 lines
2.8 KiB
ArmAsm
236 lines
2.8 KiB
ArmAsm
; Regular Tree
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; =============================================================================
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; ROUTINE MAIN
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; =============================================================================
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regular_tree:
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lda #$00
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sta DRAW_PAGE
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sta clear_all_color+1
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lda #$04
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sta DRAW_PAGE
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jsr clear_all
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bit PAGE2 ; set page 2
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; bit SET_TEXT ; set text
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bit LORES ; set lo-res
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lda #0
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sta FRAME
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; load image offscreen $6000
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lda #<mask1_data
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sta zx_src_l+1
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lda #>mask1_data
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sta zx_src_h+1
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lda #$60
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jsr zx02_full_decomp
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; load image offscreen $6400
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lda #<mask2_data
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sta zx_src_l+1
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lda #>mask2_data
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sta zx_src_h+1
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lda #$64
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jsr zx02_full_decomp
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; load image offscreen $6800
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lda #<mask3_data
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sta zx_src_l+1
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lda #>mask3_data
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sta zx_src_h+1
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lda #$68
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jsr zx02_full_decomp
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; load image offscreen $6C00
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lda #<mask4_data
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sta zx_src_l+1
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lda #>mask4_data
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sta zx_src_h+1
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lda #$6C
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jsr zx02_full_decomp
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; load image offscreen $7000
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lda #<mask5_data
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sta zx_src_l+1
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lda #>mask5_data
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sta zx_src_h+1
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lda #$70
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jsr zx02_full_decomp
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; load image offscreen $7400
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lda #<mask6_data
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sta zx_src_l+1
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lda #>mask6_data
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sta zx_src_h+1
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lda #$74
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jsr zx02_full_decomp
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; load image offscreen $7800
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lda #<mask7_data
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sta zx_src_l+1
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lda #>mask7_data
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sta zx_src_h+1
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lda #$78
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jsr zx02_full_decomp
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; load image offscreen $7C00
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lda #<mask8_data
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sta zx_src_l+1
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lda #>mask8_data
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sta zx_src_h+1
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lda #$7C
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jsr zx02_full_decomp
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lda #0
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sta OFFSET
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reset_tree_loop:
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lda #$60
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sta TREE_COUNT
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regular_tree_loop:
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ldx TREE_COUNT
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jsr gr_fast_copy
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; jsr wait_until_keypress
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jsr scroll_loop
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jsr page_flip
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lda #128
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jsr wait
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inc TREE_COUNT
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inc TREE_COUNT
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inc TREE_COUNT
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inc TREE_COUNT
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lda TREE_COUNT
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cmp #$80
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bne done_regular_tree
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jmp reset_tree_loop
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done_regular_tree:
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jmp regular_tree_loop
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;==========================
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; gr_fast_copy
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;==========================
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; page to start at in X
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gr_fast_copy:
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stx fcl_smc1+2
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stx fcl_smc2+2
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inx
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stx fcl_smc3+2
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stx fcl_smc4+2
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inx
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stx fcl_smc5+2
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stx fcl_smc6+2
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inx
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stx fcl_smc7+2
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stx fcl_smc8+2
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lda DRAW_PAGE
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clc
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adc #4
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tax
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stx fcl_smc11+2
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stx fcl_smc12+2
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inx
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stx fcl_smc13+2
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stx fcl_smc14+2
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inx
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stx fcl_smc15+2
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stx fcl_smc16+2
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inx
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stx fcl_smc17+2
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stx fcl_smc18+2
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ldy #120
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gr_fast_copy_loop:
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fcl_smc1:
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lda $7000,Y
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fcl_smc11:
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sta $400,Y
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fcl_smc2:
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lda $7080,Y
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fcl_smc12:
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sta $480,Y
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fcl_smc3:
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lda $7100,Y
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fcl_smc13:
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sta $500,Y
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fcl_smc4:
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lda $7180,Y
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fcl_smc14:
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sta $580,Y
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fcl_smc5:
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lda $7200,Y
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fcl_smc15:
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sta $600,Y
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fcl_smc6:
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lda $7280,Y
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fcl_smc16:
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sta $680,Y
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fcl_smc7:
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lda $7300,Y
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fcl_smc17:
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sta $700,Y
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fcl_smc8:
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lda $7380,Y
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fcl_smc18:
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sta $780,Y
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dey
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bpl gr_fast_copy_loop
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rts
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page_flip:
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lda DRAW_PAGE
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beq flip_draw_page2
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flip_draw_page_1:
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bit PAGE2
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lda #0
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beq done_page_flip ; bra
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flip_draw_page2:
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bit PAGE1
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lda #4
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done_page_flip:
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sta DRAW_PAGE
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rts
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