empathicqubit/cc65
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Separate header and trailers of Atari system_check chunk.

Browse source 
This allows to omit the headers and trailers if needed.
This commit is contained in:
Daniel Serpell 2019-02-18 00:26:01 -03:00
parent 61463e1a70
commit 258ba05660
3 changed files with 39 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
libsrc/atari/system_check.s
View file

@ -16,8 +16,7 @@
;DEBUG = 1
.export __SYSTEM_CHECK__: absolute = 1
.import __SYSCHK_LOAD__
.export __SYSTEM_CHECK__, __SYSCHK_END__
.import __STARTADDRESS__
; the following imports are only needed for the 'atari' target version
@ -25,10 +24,12 @@
.import __STACKSIZE__
.import __RESERVED_MEMORY__
; import our header and trailers
.forceimport __SYSCHKHDR__, __SYSCHKTRL__
.include "zeropage.inc"
.include "atari.inc"
.macro print_string text
.local start, cont
jmp cont
@ -229,25 +230,10 @@ delay1: ldx #0
.endproc
end:
__SYSTEM_CHECK__=syschk
__SYSCHK_END__:
.ifndef __ATARIXL__
tmp: ; outside of the load chunk, some kind of poor man's .bss
.endif
; ------------------------------------------------------------------------
; Chunk header
.segment "SYSCHKHDR"
.word __SYSCHK_LOAD__
.word end - 1
; ------------------------------------------------------------------------
; Chunk "trailer" - sets INITAD
.segment "SYSCHKTRL"
.word INITAD
.word INITAD+1
.word syschk

16
libsrc/atari/system_check_hdr.s Normal file
View file

@ -0,0 +1,16 @@
;
; Atari startup system check headers
;
; Christian Groessler, chris@groessler.org, 2013
;
.export __SYSCHKHDR__: absolute = 1
.import __SYSCHK_LOAD__, __SYSCHK_END__
; ------------------------------------------------------------------------
; Chunk header
.segment "SYSCHKHDR"
.word __SYSCHK_LOAD__
.word __SYSCHK_END__ - 1

17
libsrc/atari/system_check_trailer.s Normal file
View file

@ -0,0 +1,17 @@
;
; Atari startup system check headers
;
; Christian Groessler, chris@groessler.org, 2013
;
.export __SYSCHKTRL__: absolute = 1
.import __SYSTEM_CHECK__
.include "atari.inc"
; ------------------------------------------------------------------------
; Chunk "trailer" - sets INITAD
.segment "SYSCHKTRL"
.word INITAD
.word INITAD+1
.word __SYSTEM_CHECK__