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https://github.com/deater/dos33fsprogs.git
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70 lines
1.2 KiB
ArmAsm
70 lines
1.2 KiB
ArmAsm
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.include "dlowres_zp.inc"
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;================================
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; Clear screen and setup graphics
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;================================
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jsr HOME
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jsr set_gr_page0
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;===================================
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; zero out the zero page that we use
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;===================================
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; memset()
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;===================================
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; Clear top/bottom of page 0 and 1
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;===================================
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jsr clear_screens
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;=====================
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; Flying
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;=====================
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jsr flying_start
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;=====================
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; All finished
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;=====================
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exit:
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lda #$4
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sta BASH
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lda #$0
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sta BASL ; restore to 0x400 (page 0)
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; copy to 0x400 (page 0)
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; call home
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jsr HOME
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; Return to BASIC?
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rts
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;===============================================
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; External modules
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;===============================================
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.include "dlowres_utils.s"
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.include "dlowres_flying.s"
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.include "dlowres_sprites.inc"
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;===============================================
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; Variables
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;===============================================
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; waste memory with a lookup table
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; maybe faster than using GBASCALC?
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gr_offsets:
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.word $400,$480,$500,$580,$600,$680,$700,$780
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.word $428,$4a8,$528,$5a8,$628,$6a8,$728,$7a8
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.word $450,$4d0,$550,$5d0,$650,$6d0,$750,$7d0
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