testBGHdr PRG formatted GEOS file V1.0 Star NX-10 OP V2.0 or higher Text Scrap BLASTER'S CONVERTER V2.5 testBGasm.rel VDC-BG.rel Write Image V2.1 geoWrite V1.1 GEOPROGRAMMER sample file. ;************************************************************************ ; BMovHdr ; Header record for the test program of the VDC BG screen routines ; Robert A. Knop Jr., comp.sys.cbm Hacking magazine Issue #3 ; (Based on SamSeqHdr by BSW) ;************************************************************************ .if Pass1 ;Only need to include this file ;during assembler's first pass. @.include geosSym ;get GEOS definitions .endif @.header ;start of header section .word 0 ;first two bytes are always zero .byte 3 ;width in bytes .byte 21 ;and height in scanlines of: .byte $80 | USR ;Commodore file type, with bit 7 set. .byte APPLICATION ;Geos file type .byte SEQUENTIAL ;Geos file structure type .word Start ;start address of program (where to load to) .word $3ff ;usually end address, but only needed for ;desk accessories. .word Start ;init address of program (where to JMP to) .byte "testBG V1.0",0,0,0,$c0 ;permanent filename: 12 characters, ;followed by 4 character version number, ;followed by 3 zeroes, ;followed by 40/80 column flag. (80 col ONLY) .byte "The Masked Nerd ",0 ;twenty character author name ;end of header section which is checked for accuracy .block 160-117 ;skip 43 bytes... .byte "Demo of 64K VDC " .byte "BG screen routines.",$0d .byte "by Rob Knop" @.endh