mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 04:30:10 +00:00
55f9e6ac25
The targets allow to run cc65 programs in the sim65 exection einvironment. As there are no "real" i/o facilities there's no need for header files. Paravirtualized entry points are mapped to $FFF0 ff. There's a large cc65 progam area from $0200-$FFEF. The binary format includes a one-byte header indicating the required execution environment: The value 0 means 6502 and the value 1 means 65C02. The load adress for the binary is fixed to $0200. Note: Running sim65C02 programs currently doesn't work bcause sim65 doesn't actually implement 65C02 opcodes.
36 lines
1.3 KiB
INI
36 lines
1.3 KiB
INI
SYMBOLS {
|
|
__EXEHDR__: type = import;
|
|
__STACKSIZE__: type = weak, value = $0800; # 2k stack
|
|
}
|
|
MEMORY {
|
|
ZP: file = "", start = $0000, size = $001A;
|
|
HEADER: file = %O, start = $0000, size = $0001;
|
|
RAM: file = %O, define = yes, start = $0200, size = $FDF0 - __STACKSIZE__;
|
|
}
|
|
SEGMENTS {
|
|
EXEHDR: load = HEADER, type = ro;
|
|
STARTUP: load = RAM, type = ro;
|
|
LOWCODE: load = RAM, type = ro, optional = yes;
|
|
INIT: load = RAM, type = ro, define = yes, optional = yes;
|
|
CODE: load = RAM, type = ro;
|
|
RODATA: load = RAM, type = ro;
|
|
DATA: load = RAM, type = rw;
|
|
BSS: load = RAM, type = bss, define = yes;
|
|
ZEROPAGE: load = ZP, type = zp;
|
|
}
|
|
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__;
|
|
}
|