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8bitworkshop/presets/vectrex/skeleton.xasm6809

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;***************************************************************************
; DEFINE SECTION
;***************************************************************************
USE vectrex.inc ; include file
; start of vectrex memory with cartridge name...
ORG 0
;***************************************************************************
; HEADER SECTION
;***************************************************************************
FCC "g GCE 2020"
DB $80 ; 'g' is copyright sign
DW music1 ; music from the rom
DB $F8
DB $50
DB $20
DB -$56 ; height, width, rel y, rel x
; (from 0,0)
FCC "GAME TITLE"
DB $80 ; some game information,
; ending with $80
DB 0 ; end of game header
;***************************************************************************
; CODE SECTION
;***************************************************************************
; here the cartridge program starts off
main:
JSR Wait_Recal ; Vectrex BIOS recalibration
JSR Intensity_5F ; Sets the intensity of the
; vector beam to $5f
LDU #hello ; address of string
LDA #$10 ; Text position relative Y
LDB #-$50 ; Text position relative X
JSR Print_Str_d ; Vectrex BIOS print routine
BRA main ; and repeat forever
;***************************************************************************
; DATA SECTION
;***************************************************************************
hello:
FCC "HELLO WORLD" ; only capital letters
DB $80 ; $80 is end of string
;***************************************************************************
END main
;***************************************************************************