ld.cfg

# Memory configuration for the VIC-20 with 32K RAM Cartridge
# Contributed by Stefan Haubenthal
SYMBOLS {
    __LOADADDR__:  type = import;
    __EXEHDR__:    type = import;
    __STACKSIZE__: type = weak, value = $0800; # 2k stack
}
MEMORY {
    ZP:       file = "", define = yes, start = $0002, size = $001A;
    LOADADDR: file = %O,               start = $11FF, size = $0002;
    HEADER:   file = %O,               start = $1201, size = $000C;

    # RAM before font data
    LORAM:    file = %O, define = yes, start = $120D, size = $01f3, fill = yes, fillval = $ff;

    # font data
    FONT_MEM: file = %O, define = yes, start = $1400, size = $1000;

    # rest of RAM
    MAIN:     file = %O, define = yes, start = $2400, size = $5a00 - __STACKSIZE__;
}
SEGMENTS {
    ZEROPAGE: load = ZP,       type = zp;
    LOADADDR: load = LOADADDR, type = ro;
    EXEHDR:   load = HEADER,   type = ro;
    STARTUP:  load = LORAM,    type = ro;
    LOWCODE:  load = MAIN,     type = ro,  optional = yes;
    ONCE:     load = MAIN,     type = ro,  optional = yes;
    CODE:     load = MAIN,     type = ro;
    RODATA:   load = MAIN,     type = ro;
    DATA:     load = MAIN,     type = rw;
    INIT:     load = MAIN,     type = bss;
    BSS:      load = MAIN,     type = bss, define   = yes;
    FONT:     load = FONT_MEM, type = ro, define   = yes;
}
FEATURES {
    CONDES: type    = constructor,
            label   = __CONSTRUCTOR_TABLE__,
            count   = __CONSTRUCTOR_COUNT__,
            segment = ONCE;
    CONDES: type    = destructor,
            label   = __DESTRUCTOR_TABLE__,
            count   = __DESTRUCTOR_COUNT__,
            segment = RODATA;
    CONDES: type    = interruptor,
            label   = __INTERRUPTOR_TABLE__,
            count   = __INTERRUPTOR_COUNT__,
            segment = RODATA,
            import  = __CALLIRQ__;
}