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cc65/cfg/creativision.cfg

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Added basic frame for new target 'creativision'. Kym Greenshields <kym.greenshields@gmail.com> has expressed interest in contributing and maintaining support for the VTech CreatiVision system. this resembles commit 8e6b8dd0afed52c1963ea29c4921157693463cbe from oliver
2013-11-25 21:52:04 +00:00
SYMBOLS {
Reduced default stack size to a reasonable value. The unexpanded Creativision has only $206 bytes of RAM available to cc65 programs. So it's a bad idea(tm) to reserve $180 bytes for the software stack. $40 bytes seems a much better default (aka guess).
2018-02-10 10:29:50 +00:00
__STACKSIZE__: type = weak, value = $0040;
Added basic frame for new target 'creativision'. Kym Greenshields <kym.greenshields@gmail.com> has expressed interest in contributing and maintaining support for the VTech CreatiVision system. this resembles commit 8e6b8dd0afed52c1963ea29c4921157693463cbe from oliver
2013-11-25 21:52:04 +00:00
}
MEMORY {
ZP: file = "", define = yes, start = $0020, size = $00E0;
Optimizing the stack size
2017-12-18 18:19:59 +00:00
RAM: file = "", define = yes, start = $01FA, size = $0206 - __STACKSIZE__;
Creativison changes. This change includes some cleanups, removal of mainargs.s (game console programs never have arguments), and a workaround for a problem I'm seeing. The problem is that sometimes (in fact, more often than not) the clrscr() call in testcode/lib/joy-test.c writes some garbage chars on the screen (most often a "P"). Could be my hardware (I haven't seen it on MAME), but to me the root cause is still unknown.
2017-03-17 20:42:51 +00:00
ROM: file = %O, define = yes, start = $B000, size = $1000, fill = yes, fillval = $FF;
Added basic frame for new target 'creativision'. Kym Greenshields <kym.greenshields@gmail.com> has expressed interest in contributing and maintaining support for the VTech CreatiVision system. this resembles commit 8e6b8dd0afed52c1963ea29c4921157693463cbe from oliver
2013-11-25 21:52:04 +00:00
}
SEGMENTS {
ZEROPAGE: load = ZP, type = zp;
ZP: load = ZP, type = zp, optional = yes;
VECTORS: load = ROM, run = RAM, type = rw, define = yes;
DATA: load = ROM, run = RAM, type = rw, define = yes, start = $0204;
BSS: load = RAM, type = bss, define = yes;
Cleanups for Creativision.
2017-02-01 18:46:04 +00:00
ONCE: load = ROM, type = ro, optional = yes;
Added basic frame for new target 'creativision'. Kym Greenshields <kym.greenshields@gmail.com> has expressed interest in contributing and maintaining support for the VTech CreatiVision system. this resembles commit 8e6b8dd0afed52c1963ea29c4921157693463cbe from oliver
2013-11-25 21:52:04 +00:00
CODE: load = ROM, type = ro;
INIT: load = ROM, type = ro;
RODATA: load = ROM, type = ro;
AUDIO: load = ROM, type = ro, optional = yes, start = $BF00;
SETUP: load = ROM, type = ro, start = $BFE8;
}
FEATURES {
CONDES: type = constructor,
label = __CONSTRUCTOR_TABLE__,
count = __CONSTRUCTOR_COUNT__,
segment = INIT;
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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