# Sample linker configuration for C programs using the Atari binary file support.
# Use with: cl65 -tatari -Catari-xex.cfg prog.c -o prog.xex
FEATURES {
    STARTADDRESS: default = $8000;
}
SYMBOLS {
    __SYSTEM_CHECK__:    type = import;  # force inclusion of "system check" load chunk
    __STACKSIZE__:       type = weak, value = $0800; # 2k stack
    __STARTADDRESS__:    type = export, value = %S;
    __RESERVED_MEMORY__: type = weak, value = $0000;
    __SYSCHKHDR__:       type = export, value = 0; # Disable system check header
    __SYSCHKTRL__:       type = export, value = 0; # Disable system check trailer
    __TABLESEG_START__:    type = weak, value = $2E00 + $0300;
    __TABLESEG_SIZE__:     type = weak, value = 6 * $100;
    __BANKSY_START__:  type = weak, value = $4000;
    __BANKSY_SIZE__:   type = weak, value = $4000;
    __FRAMEBUFFER_START__: type = weak, value = $A000;
}
MEMORY {
# Note -- $80 and $81 (LOMEM) appear to be reserved in ZP.
    ZP:         file = "", define = yes, start = $0082, size = $007E;
# "system check" load chunk
    SYSCHKCHNK: file = %O,               start = $2E00, size = $0300;
# Note $a000-$bfff is against the BASIC cartridge, may require booting with OPTION.
    TABLES:     file = %O, define = yes, start = __TABLESEG_START__, size = __TABLESEG_SIZE__;
# We reserve $4000-7fff for the bank-switch window.
# In theory we could keep data and code here that we only use on 48k/64k systems.
    BANKSWITCH: file = "", define = yes, start = __BANKSY_START__, size = __BANKSY_SIZE__;
# "main program" load chunk
    MAIN:       file = %O, define = yes, start = %S, size = __FRAMEBUFFER_START__ - __STACKSIZE__ - __RESERVED_MEMORY__ - %S;
}
FILES {
    %O: format = atari;
}
FORMATS {
    atari: runad = start,
           initad = SYSCHKCHNK: __SYSTEM_CHECK__;
}
SEGMENTS {
    ZEROPAGE:  load = ZP,         type = zp;
    EXTZP:     load = ZP,         type = zp,                optional = yes;
    SYSCHK:    load = SYSCHKCHNK, type = rw,  define = yes, optional = yes;
    TABLES:    load = TABLES,     type = ro,  optional = yes, align = 256;
    BANKSWICH: load = BANKSWITCH, type = ro,  optional = yes;
    STARTUP:   load = MAIN,       type = ro,  define = yes;
    LOWBSS:    load = MAIN,       type = rw,                optional = yes;  # not zero initialized
    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;
    INIT:      load = MAIN,       type = rw,                optional = yes;
    BSS:       load = MAIN,       type = bss, 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__;
}