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46 lines
2.4 KiB
Plaintext
46 lines
2.4 KiB
Plaintext
; http://vide.malban.de/help/vectrex-tutorial-ii-starting-with-bios
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;***************************************************************************
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; DEFINE SECTION
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;***************************************************************************
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USE vectrex.inc ; include file
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; start of vectrex memory with cartridge name...
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ORG 0
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;***************************************************************************
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; HEADER SECTION
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;***************************************************************************
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FCC "g GCE 1982"
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DB $80 ; 'g' is copyright sign
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DW music1 ; music from the rom
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DB $F8
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DB $50
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DB $20
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DB -$56 ; height, width, rel y, rel x
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; (from 0,0)
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FCC "HELLO WORLD PROG 1"
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DB $80 ; some game information,
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; ending with $80
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DB 0 ; end of game header
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;***************************************************************************
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; CODE SECTION
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;***************************************************************************
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; here the cartridge program starts off
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main:
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JSR Wait_Recal ; Vectrex BIOS recalibration
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JSR Intensity_5F ; Sets the intensity of the
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; vector beam to $5f
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LDU #hello ; address of string
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LDA #$10 ; Text position relative Y
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LDB #-$50 ; Text position relative X
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JSR Print_Str_d ; Vectrex BIOS print routine
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BRA main ; and repeat forever
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;***************************************************************************
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; DATA SECTION
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;***************************************************************************
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hello:
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FCC "HELLO WORLD" ; only capital letters
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DB $80 ; $80 is end of string
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;***************************************************************************
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END main
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;***************************************************************************
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