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@@ -1,25 +1,8 @@
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-*=$0800 "BASIC Start"
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- // location to put a 1 line basic program so we can just
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- // type run to execute the assembled program.
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-
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- // will just call assembled program at correct location
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- // 10 SYS (4096)
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+*= $0801 "Basic Upstart"
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+BasicUpstart(start) // 10 sys$0810
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- // These bytes are a one line basic program that will
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- // do a sys call to assembly language portion of
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- // of the program which will be at $1000 or 4096 decimal
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- // basic line is:
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- // 10 SYS (4096)
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- .byte $00 // first byte of basic should be a zero
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- .byte $0E, $08 // Forward address to next basic line
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- .byte $0A, $00 // this will be line 10 ($0A)
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- .byte $9E // basic token for SYS
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- .byte $20, $28, $34, $30, $39, $36, $29 // ASCII for " (4096)"
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- .byte $00, $00, $00 // end of basic program (addr $080E from above)
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-
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-*=$1000 "Main Start"
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-
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- ldx #$00
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+*= $0810 "Program"
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+start: ldx #$00
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stx $d020 // Border color register
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stx $d021 // Background color
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