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Atari: atari-cart.cfg: There's a simpler way to discard the contents of the LOWBSS segment.

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Thanks to Greg King for the hint.
This commit is contained in:
Christian Groessler 2018-09-04 11:32:40 +02:00 committed by Oliver Schmidt
parent 1cc4fa9356
commit a104c289da
1 changed files with 16 additions and 17 deletions
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33
cfg/atari-cart.cfg
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@ -10,25 +10,24 @@ SYMBOLS {
__CARTFLAGS__: type = weak, value = $01; # see documentation for other possible values
}
MEMORY {
ZP: file = "", define = yes, start = $0082, size = $007E;
MAIN: file = "", define = yes, start = %S, size = __CARTSIZE__;
ROM: file = %O, define = yes, start = $C000 - __CARTSIZE__, size = __CARTSIZE__ - 6, fill = yes, fillval = $FF;
CARTID: file = %O, start = $BFFA, size = $0006;
DISCARD: file = "", start = $0100, size = $FF00;
ZP: file = "", define = yes, start = $0082, size = $007E;
MAIN: file = "", define = yes, start = %S, size = __CARTSIZE__;
ROM: file = %O, define = yes, start = $C000 - __CARTSIZE__, size = __CARTSIZE__ - 6, fill = yes, fillval = $FF;
CARTID: file = %O, start = $BFFA, size = $0006;
}
SEGMENTS {
ZEROPAGE: load = ZP, type = zp, optional = yes;
EXTZP: load = ZP, type = zp, optional = yes;
STARTUP: load = ROM, type = ro, define = yes, optional = yes;
LOWBSS: load = DISCARD, run = MAIN, type = rw, optional = yes; # not zero-initialized
LOWCODE: load = ROM, type = ro, define = yes, optional = yes;
ONCE: load = ROM, type = ro, optional = yes;
CODE: load = ROM, type = ro, define = yes;
RODATA: load = ROM, type = ro, optional = yes;
DATA: load = ROM, run = MAIN, type = rw, define = yes, optional = yes;
INIT: load = MAIN, type = bss, optional = yes;
BSS: load = MAIN, type = bss, define = yes, optional = yes;
CARTHDR: load = CARTID, type = ro;
ZEROPAGE: load = ZP, type = zp, optional = yes;
EXTZP: load = ZP, type = zp, optional = yes;
STARTUP: load = ROM, type = ro, define = yes, optional = yes;
LOWBSS: load = MAIN, type = bss, optional = yes; # not zero initialized
LOWCODE: load = ROM, type = ro, define = yes, optional = yes;
ONCE: load = ROM, type = ro, optional = yes;
CODE: load = ROM, type = ro, define = yes;
RODATA: load = ROM, type = ro, optional = yes;
DATA: load = ROM, run = MAIN, type = rw, define = yes, optional = yes;
INIT: load = MAIN, type = bss, optional = yes;
BSS: load = MAIN, type = bss, define = yes, optional = yes;
CARTHDR: load = CARTID, type = ro;
}
FEATURES {
CONDES: type = constructor,