2020-06-08 12:28:43 +00:00
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;license:MIT
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2023-11-28 21:03:07 +00:00
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;(c) 2020, 2022, 2023 by Frank M., qkumba
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2020-06-08 12:28:43 +00:00
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!cpu 6502
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2021-10-16 01:34:39 +00:00
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!to "build/PRELAUNCH.INDEXED/FLAPPLE.BIRD",plain
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2020-06-08 12:28:43 +00:00
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*=$106
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!source "src/prelaunch/common.a"
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2023-11-28 21:03:07 +00:00
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+ENABLE_ACCEL
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2022-10-04 20:37:33 +00:00
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lda #$60
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sta $813
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jsr $800
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+READ_RAM1_NO_WRITE
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lda WaitForVBL
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eor #$60
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bne @good_vbl ; if VBL disabled in TR
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sta $2971 ; then disable VBL in game
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@good_vbl
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+DISABLE_ACCEL
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2023-11-28 21:03:07 +00:00
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lda $fbb3
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cmp #$6
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bne @not_mac
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lda $fbc0
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cmp #$e0
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bne @not_mac
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lda $fbdd
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cmp #$02
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bne @not_mac
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+READ_RAM2_WRITE_RAM2
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+LOAD_FILE_AT flapple_mac, $b000
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jsr $b000
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+READ_ROM_NO_WRITE
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@not_mac
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2022-10-04 20:37:33 +00:00
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jmp $2000
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2020-06-08 12:28:43 +00:00
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2023-11-28 21:03:07 +00:00
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flapple_mac
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!byte 21
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!text "PRELAUNCH/FLAPPLE.MAC"
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2020-06-08 12:28:43 +00:00
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!if * > $1C0 {
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!error "code is too large, ends at ", *
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}
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