mirror of
https://github.com/cc65/cc65.git
synced 2024-12-22 12:30:41 +00:00
410e4502ee
The driver requires a special linker configuration: "vic20-tgi.cfg". The VIC-20 computer needs at least 8K of expansion RAM! "tgidemo.c" needed to be adjusted because the VIC-20's vertical (y) range is greater than its horizontal (x) range -- the opposite of most other platforms. Also, the circle demo would jam on the VIC-20.
51 lines
2.0 KiB
INI
51 lines
2.0 KiB
INI
# Memory configuration which supports the "vic20-hi.tgi" driver.
|
|
# Memory configuration for a VIC-20 with, at least, 8K expansion RAM.
|
|
FEATURES {
|
|
STARTADDRESS: default = $1201;
|
|
}
|
|
SYMBOLS {
|
|
__LOADADDR__: type = import;
|
|
__EXEHDR__: type = import;
|
|
__TGIHDR__: type = import;
|
|
__STACKSIZE__: type = weak, value = $0200; # 512-byte stack
|
|
__HIMEM__: type = weak, value = $4000;
|
|
}
|
|
MEMORY {
|
|
ZP: file = "", define = yes, start = $0002, size = $001A;
|
|
LOADADDR: file = %O, start = %S - 2, size = $0002;
|
|
HEADER: file = %O, define = yes, start = %S, size = $003E;
|
|
MAIN: file = %O, define = yes, start = $2000, size = __HIMEM__ - __MAIN_START__ - __STACKSIZE__;
|
|
}
|
|
SEGMENTS {
|
|
ZEROPAGE: load = ZP, type = zp;
|
|
LOADADDR: load = LOADADDR, type = ro;
|
|
# The start-up code needs EXEHDR, TGI1HDR, TGI2HDR,
|
|
# and STARTUP to be next to each other, in that order.
|
|
EXEHDR: load = HEADER, type = ro;
|
|
TGI1HDR: load = HEADER, type = ro;
|
|
TGI2HDR: load = MAIN, type = ro;
|
|
STARTUP: load = MAIN, type = ro;
|
|
LOWCODE: load = MAIN, type = ro, optional = yes;
|
|
CODE: load = MAIN, type = ro;
|
|
RODATA: load = MAIN, type = ro;
|
|
DATA: load = MAIN, type = rw;
|
|
ONCE: load = MAIN, type = ro, optional = yes, define = yes;
|
|
INIT: load = MAIN, type = bss, 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__;
|
|
}
|