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Rename bootloader to bios, add actual bootloader

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Byron Lathi
2023-07-31 19:58:32 -07:00
parent 5128fe64b6
commit 18b8ac7ccf
29 changed files with 168 additions and 138 deletions
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35
sw/bios/link.ld Normal file
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MEMORY
{
ZP: start = $0, size = $100, type = rw, define = yes;
SDRAM: start = $200, size = $7cf0, type = rw, define = yes;
ROM: start = $F000, size = $1000, file = %O;
}
SEGMENTS {
ZEROPAGE: load = ZP, type = zp, define = yes;
DATA: load = ROM, type = rw, define = yes, run = SDRAM;
BSS: load = SDRAM, type = bss, define = yes;
HEAP: load = SDRAM, type = bss, optional = yes;
STARTUP: load = ROM, type = ro;
ONCE: load = ROM, type = ro, optional = yes;
CODE: load = ROM, type = ro;
RODATA: load = ROM, type = ro;
VECTORS: load = ROM, type = ro, start = $FFFA;
}
FEATURES {
CONDES: segment = STARTUP,
type = constructor,
label = __CONSTRUCTOR_TABLE__,
count = __CONSTRUCTOR_COUNT__;
CONDES: segment = STARTUP,
type = destructor,
label = __DESTRUCTOR_TABLE__,
count = __DESTRUCTOR_COUNT__;
}
SYMBOLS {
# Define the stack size for the application
__STACKSIZE__: value = $0200, type = weak;
__STACKSTART__: type = weak, value = $0800; # 2k stack
}