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testbghdr.cvt
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GEOS ConVerT
|
1990-02-12
|
2KB
|
48 lines
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