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cc65/cfg/atarixl-largehimem.cfg

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Add comment describing the need to have the runtime library compiled with CHARGEN_RELOC enabled.
2013-09-20 16:09:16 +00:00
# This config file provides a single big upper memory block (HIDDEN_RAM).
# To achieve this, it relocates the character generator from $E000 to CHARGEN.
# The runtime library must be compiled with CHARGEN_RELOC for this config
# file to work. See libsrc/atari/Makefile.inc.
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
FEATURES {
STARTADDRESS: default = $2400;
}
SYMBOLS {
Renamed RAM to MAIN for all disk based targets. The name RAM doesn't make much sense in general for a memeory area because i.e. the zero page is for sure RAM but is not part of the memory area named RAM. For disk based targets it makes sense to put the disk file more into focus and here MAIN means the main part of the file - in contrast to some header. Only for ROM based targets the name RAM is kept as it makes sense to focus on the difference between RAM and ROM.
2016-03-07 00:28:55 +00:00
__EXEHDR__: type = import;
__SYSTEM_CHECK__: type = import; # force inclusion of "system check" load chunk
__AUTOSTART__: type = import; # force inclusion of autostart "trailer"
__STACKSIZE__: type = weak, value = $0800; # 2k stack
__STARTADDRESS__: type = export, value = %S;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
}
MEMORY {
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
ZP: file = "", define = yes, start = $0082, size = $007E;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# just $FFFF
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
HEADER: file = %O, start = $0000, size = $0002;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# "system check" load chunk
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
SYSCHKHDR: file = %O, start = $0000, size = $0004;
SYSCHKCHNK: file = %O, start = $2E00, size = $0300;
SYSCHKTRL: file = %O, start = $0000, size = $0006;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# "shadow RAM preparation" load chunk
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
SRPREPHDR: file = %O, start = $0000, size = $0004;
SRPREPCHNK: file = %O, define = yes, start = %S, size = $7C20 - %S - $07FF; # $07FF: space for temp. chargen buffer, 1K aligned
SRPREPTRL: file = %O, start = $0000, size = $0006;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# "main program" load chunk
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
MAINHDR: file = %O, start = $0000, size = $0004;
MAIN: file = %O, define = yes, start = %S + __LOWBSS_SIZE__, size = $D000 - __STACKSIZE__ - %S - __LOWBSS_SIZE__;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# defines entry point into program
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
TRAILER: file = %O, start = $0000, size = $0006;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# address of relocated character generator
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
CHARGEN: file = "", define = yes, start = $D800, size = $0400;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
# memory beneath the ROM
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
HIDDEN_RAM: file = "", define = yes, start = $DC00, size = $FFFA - $DC00;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
}
SEGMENTS {
Renamed INITBSS to INIT and INIT to ONCE. The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name. Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 20:26:22 +00:00
ZEROPAGE: load = ZP, type = zp;
EXTZP: load = ZP, type = zp, optional = yes;
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
EXEHDR: load = HEADER, type = ro;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
SYSCHKHDR: load = SYSCHKHDR, type = ro, optional = yes;
SYSCHK: load = SYSCHKCHNK, type = rw, define = yes, optional = yes;
SYSCHKTRL: load = SYSCHKTRL, type = ro, optional = yes;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
SRPREPHDR: load = SRPREPHDR, type = ro;
rename LOWDATA segment to LOWBSS
2013-10-16 16:15:17 +00:00
LOWBSS: load = SRPREPCHNK, type = bss, define = yes; # shared btw. SRPREPCHNK and RAM, not zero initialized
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
SRPREP: load = SRPREPCHNK, type = rw, define = yes;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
SHADOW_RAM: load = SRPREPCHNK, run = HIDDEN_RAM, type = rw, define = yes, optional = yes;
SHADOW_RAM2: load = SRPREPCHNK, run = HIDDEN_RAM, type = rw, define = yes, optional = yes;
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
SRPREPTRL: load = SRPREPTRL, type = ro;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
MAINHDR: load = MAINHDR, type = ro;
Renamed RAM to MAIN for all disk based targets. The name RAM doesn't make much sense in general for a memeory area because i.e. the zero page is for sure RAM but is not part of the memory area named RAM. For disk based targets it makes sense to put the disk file more into focus and here MAIN means the main part of the file - in contrast to some header. Only for ROM based targets the name RAM is kept as it makes sense to focus on the difference between RAM and ROM.
2016-03-07 00:28:55 +00:00
STARTUP: load = MAIN, type = ro, define = yes;
LOWCODE: load = MAIN, type = ro, define = yes, optional = yes;
ONCE: load = MAIN, type = ro, optional = yes;
CODE: load = MAIN, type = ro, define = yes;
RODATA: load = MAIN, type = ro;
DATA: load = MAIN, type = rw;
Fixed INIT properties. The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 21:18:51 +00:00
INIT: load = MAIN, type = rw, optional = yes;
Renamed RAM to MAIN for all disk based targets. The name RAM doesn't make much sense in general for a memeory area because i.e. the zero page is for sure RAM but is not part of the memory area named RAM. For disk based targets it makes sense to put the disk file more into focus and here MAIN means the main part of the file - in contrast to some header. Only for ROM based targets the name RAM is kept as it makes sense to focus on the difference between RAM and ROM.
2016-03-07 00:28:55 +00:00
BSS: load = MAIN, type = bss, define = yes;
Some formatting and style fixes.
2013-10-01 09:32:08 +00:00
AUTOSTRT: load = TRAILER, type = ro;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
}
FEATURES {
CONDES: type = constructor,
label = __CONSTRUCTOR_TABLE__,
count = __CONSTRUCTOR_COUNT__,
Renamed INITBSS to INIT and INIT to ONCE. The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name. Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 20:26:22 +00:00
segment = ONCE;
Default atatixl.cfg file now leaves the character generator at $E000. This reduces the potential to flicker, but creates two separate memory areas in the high memory. For applications which require a large continuous memory space in high memory, atarixl-largehimem.cfg is provided. With high IRQ activity or DL interrupt there might be flicker.
2013-09-17 22:38:29 +00:00
CONDES: type = destructor,
label = __DESTRUCTOR_TABLE__,
count = __DESTRUCTOR_COUNT__,
segment = RODATA;
CONDES: type = interruptor,
label = __INTERRUPTOR_TABLE__,
count = __INTERRUPTOR_COUNT__,
segment = RODATA,
import = __CALLIRQ__;
}
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