[coleco] add pragmas for OS7 features?

[tschak909]

I need to be able to set the BSS to avoid the sound and controller areas, and this is flubbing:

zcc +coleco -m -s -pragma-define:CRT_ENABLE_STDIO=0 -pragma-define:REGISTER_SP=0x73B8 -pragma-define:CLIB_FOPEN_MAX=0 -pragma-define:fputc_cons=0 -pragma-define:CLIB_DEFAULT_SCREEN_MODE=-1 -pragma-define:CRT_ORG_BSS=0x708C -L../.. -los7 -osound_demo.rom -create-app ./build/./src/sound_demo.c.o
/home/thomc/Workspace/z88dk/lib/config/../../lib/target/coleco/classic/rom.asm:12: error: duplicate definition: CRT_ORG_BSS
^---- defc CRT_ORG_BSS = 0x7000
^---- defc CRT_ORG_BSS=28672
make: *** [Makefile:21: build/sound_demo.rom] Error 1

what can I do here? I am currently changing the value in rom.asm

[tschak909]

I wound up doing this in rom.asm

Code: Select all

IF !DEFINED_CRT_ORG_BSS                                                                                                              
    defc    CRT_ORG_BSS = 0x7000                                                                                                     
ENDIF                                                                                                                                

[dom]

Ah, so there's some memory used by those routines that isn't in the header?

That's the right fix BTW I'll add it to the repo.

[tschak909]

Basically, from 0x7000 to 0x7020 is not used. 0x7020 to 0x702A is hard-coded to be used by the sound routines, and 73B9 is noted as the top of the stack, with locations below it being reserved for various OS7 pointers.

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