brooke/mandel-6502
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Put the tables before the main code, and shrink the segment

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Leaves more room for code and dynamic data/stack
This commit is contained in:
Brooke Vibber 2025-12-28 12:32:57 -08:00
commit 97fdc12565
1 changed files with 7 additions and 6 deletions
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13
atari-xex.cfg
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@ -10,18 +10,19 @@ SYMBOLS {
__RESERVED_MEMORY__: type = weak, value = $0000; __RESERVED_MEMORY__: type = weak, value = $0000;
__SYSCHKHDR__: type = export, value = 0; # Disable system check header __SYSCHKHDR__: type = export, value = 0; # Disable system check header
__SYSCHKTRL__: type = export, value = 0; # Disable system check trailer __SYSCHKTRL__: type = export, value = 0; # Disable system check trailer
__TABLESEG_SIZE__: type = weak, value = 6 * $100;
__FRAMEBUFFER_START__: type = weak, value = $a000;
} }
MEMORY { MEMORY {
ZP: file = "", define = yes, start = $0082, size = $007E; ZP: file = "", define = yes, start = $0082, size = $007E;
# "system check" load chunk # "system check" load chunk
SYSCHKCHNK: file = %O, start = $2E00, size = $0300; SYSCHKCHNK: file = %O, start = $2E00, size = $0300;
# "main program" load chunk
# Note we reserve $4000-7fff for the bank-switch window. # Note we reserve $4000-7fff for the bank-switch window.
#MAIN: file = %O, define = yes, start = %S, size = $BC20 - __STACKSIZE__ - __RESERVED_MEMORY__ - %S;
MAIN: file = %O, define = yes, start = %S, size = $4000 - __STACKSIZE__ - __RESERVED_MEMORY__ - %S;
# Note $a000-$bfff is against the BASIC cartridge, may require booting with OPTION. # Note $a000-$bfff is against the BASIC cartridge, may require booting with OPTION.
TABLES: file = %O, define = yes, start = $8000, size = $a000 - $8000; TABLES: file = %O, define = yes, start = %S, size = __TABLESEG_SIZE__;
# "main program" load chunk
MAIN: file = %O, define = yes, start = %S + __TABLESEG_SIZE__, size = __FRAMEBUFFER_START__ - __STACKSIZE__ - __RESERVED_MEMORY__ - __TABLESEG_SIZE__ - %S;
} }
FILES { FILES {
%O: format = atari; %O: format = atari;
@ -34,6 +35,7 @@ SEGMENTS {
ZEROPAGE: load = ZP, type = zp; ZEROPAGE: load = ZP, type = zp;
EXTZP: load = ZP, type = zp, optional = yes; EXTZP: load = ZP, type = zp, optional = yes;
SYSCHK: load = SYSCHKCHNK, type = rw, define = yes, optional = yes; SYSCHK: load = SYSCHKCHNK, type = rw, define = yes, optional = yes;
TABLES: load = TABLES, type = ro, optional = yes, align = 256;
STARTUP: load = MAIN, type = ro, define = yes; STARTUP: load = MAIN, type = ro, define = yes;
LOWBSS: load = MAIN, type = rw, optional = yes; # not zero initialized LOWBSS: load = MAIN, type = rw, optional = yes; # not zero initialized
LOWCODE: load = MAIN, type = ro, define = yes, optional = yes; LOWCODE: load = MAIN, type = ro, define = yes, optional = yes;
@ -43,7 +45,6 @@ SEGMENTS {
DATA: load = MAIN, type = rw; DATA: load = MAIN, type = rw;
INIT: load = MAIN, type = rw, optional = yes; INIT: load = MAIN, type = rw, optional = yes;
BSS: load = MAIN, type = bss, define = yes; BSS: load = MAIN, type = bss, define = yes;
TABLES: load = TABLES, type = ro, optional = yes, align = 256;
} }
FEATURES { FEATURES {
CONDES: type = constructor, CONDES: type = constructor,