FEATURES {
    STARTADDRESS: default = $2E00;
}

SYMBOLS {
    __STACKSIZE__:       type = weak, value = $0800; # 2k stack
    __RESERVED_MEMORY__: type = weak, value = $0000;
    syschk:              type = import;  # force inclusion of SYSCHK
    sramprep:            type = import;  # force inclusion of SRPREP
}

MEMORY {
    ZP:            file = "", define = yes, start = $0082,                  size = $007E;

# just $FFFF
    HEADER:        file = %O,               start = $0000,                  size = $0002;

# "system check" load chunk
    SYSCHKHDR:     file = %O,               start = $0000,                  size = $0004;
    SYSCHK:        file = %O,               start = $2E00,                  size = $0E00;

# "shadow RAM preparation" load chunk
    SRPREPHDR:     file = %O,               start = $0000,                  size = $0004;
    SRPREP:        file = %O,               start = %S,                     size = $7C20 - %S - $04FF;  # $04FF: space for temp. chargen buffer, page aligned
    SRPREPTRL:     file = %O,               start = $0000,                  size = $0006;

# "main program" load chunk
    MAINHDR:       file = %O,               start = $0000,                  size = $0004;
    RAM:           file = %O, define = yes, start = %S +
    		   	      	       	            __SAVEAREA_SIZE__ +
    		   	      	       	            __LOWBUFS_SIZE__, size = $D000 -
						    		     	     __STACKSIZE__ -
									     %S -
									     __SAVEAREA_SIZE__ -
									     __LOWBUFS_SIZE__;

# address of relocated character generator
    CHARGEN:       file = "", define = yes, start = $D800, size = $0400;

# memory beneath the ROM
    RAM_BELOW_ROM: file = "",               start = $DC00, size = $FFF0 - $DC00;

# defines entry point into program
    TRAILER:       file = %O,               start = $0000, size = $0006;
}

SEGMENTS {
    EXEHDR:     load = HEADER,                      type = ro;

    SYSCHKHDR:  load = SYSCHKHDR,                   type = ro,                optional = yes;
    SYSCHK:     load = SYSCHK,                      type = rw,  define = yes, optional = yes;

    SRPREPHDR:  load = SRPREPHDR,                   type = ro;
    SAVEAREA:   load = SRPREP,                      type = bss, define = yes;  # shared btw. SRPREP and RAM
    LOWBUFS:    load = SRPREP,                      type = bss, define = yes;
    SRPREP:     load = SRPREP,                      type = rw,  define = yes;
    SHADOW_RAM: load = SRPREP, run = RAM_BELOW_ROM, type = rw,  define = yes, optional = yes;
    SRPREPTRL:  load = SRPREPTRL,                   type = ro;

    MAINHDR:    load = MAINHDR,                     type = ro;
    STARTUP:    load = RAM,                         type = ro,  define = yes;
    LOWCODE:    load = RAM,                         type = ro,  define = yes, optional = yes;
    INIT:       load = RAM,                         type = ro,                optional = yes;
    CODE:       load = RAM,                         type = ro,  define = yes;
    RODATA:     load = RAM,                         type = ro;
    DATA:       load = RAM,                         type = rw;
    BSS:        load = RAM,                         type = bss, define = yes;
    ZEROPAGE:   load = ZP,                          type = zp;
    EXTZP:      load = ZP,                          type = zp,                optional = yes;
    AUTOSTRT:   load = TRAILER,                     type = ro;
}
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__;
}