2019-02-26 02:01:06 +00:00
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; Test if we can use LZ4 instead of RLE for compression of LORES images
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;
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;
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2019-02-25 17:28:42 +00:00
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2019-02-26 02:01:06 +00:00
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.include "hardware.inc"
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.include "zp.inc"
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2019-02-25 17:28:42 +00:00
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start:
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2019-02-26 02:01:06 +00:00
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;===========================
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; Enable graphics
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bit LORES
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bit SET_GR
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bit FULLGR
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;===========================
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; Setup pages
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lda #4
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sta DRAW_PAGE
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lda #0
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sta DISP_PAGE
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;============================
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; Test RLE version
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jsr BELL
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lda #1 ; 8
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sta OFFSET
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rle_outer_loop:
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lda #1 ; 100
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sta GAIT
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rle_inner_loop:
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lda #>(test_rle)
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sta GBASH
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lda #<(test_rle)
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sta GBASL
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lda #$0c ; load to $c00
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jsr load_rle_gr
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dec GAIT
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bne rle_inner_loop
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dec OFFSET
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bne rle_outer_loop
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jsr BELL
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jsr gr_copy_to_current
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jsr page_flip
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uz_loop:
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lda KEYPRESS
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bpl uz_loop
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bit KEYRESET
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;======================
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; clear between tests
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lda DRAW_PAGE
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pha
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lda #$8 ; clear c00
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sta DRAW_PAGE
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jsr clear_top
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jsr clear_bottom
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pla
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sta DRAW_PAGE
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vz_loop:
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lda KEYPRESS
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bpl vz_loop
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bit KEYRESET
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;============================
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; Test LZ4 version
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; point to source
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lda #<(test_lz4)
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sta LZ4_SRC
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lda #>(test_lz4)
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sta LZ4_SRC+1
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lda #$C ; page to write to
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jsr lz4_decode
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jsr gr_copy_to_current
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jsr page_flip
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forever:
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jmp forever
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.include "gr_unrle.s"
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.include "gr_offsets.s"
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.include "gr_pageflip.s"
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.include "gr_copy.s"
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.include "gr_fast_clear.s"
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.include "lz4_decode.s"
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.include "compress_test.inc"
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