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Reserve IWRAM space for BIOS use

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jmaargh 2023-10-16 22:45:59 +01:00
parent cd6e8d1346
commit 9040844854
1 changed files with 5 additions and 1 deletions
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6
agb/gba.ld
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@ -7,9 +7,13 @@ EXTERN(__RUST_INTERRUPT_HANDLER)
EXTERN(__agbabi_memset)
EXTERN(__agbabi_memcpy)
/* The bios reserves the final 256 bytes of iwram for its exclusive use, so we
* need to avoid writing there */
__bios_reserved_iwram = 256;
MEMORY {
ewram (w!x) : ORIGIN = 0x02000000, LENGTH = 256K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K
iwram (w!x) : ORIGIN = 0x03000000, LENGTH = 32K - __bios_reserved_iwram
rom (rx) : ORIGIN = 0x08000000, LENGTH = 32M
}