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oot/src/libultra_boot_O1/osGetMemSize.c
Random 174af7384d
libultra cleanup (#215)
* cleanup libultra

* fixes

- use quotes instead of <> for includes
- add macros for zelda specific thread priorities
- fix Makefile
- properly format the remaining pfs structs

* fix button macros + add CHECK_BTN_ANY/CHECK_BTN_ALL

* remove ULTRA_ABS

* fix includes

* update z_player.c/z_lib.c + run format.sh

* merge upstream/master

* fix include in En_Goroiwa

* fix includes
2020-10-03 11:22:44 -04:00

33 lines
553 B
C

#include "global.h"
#define STEP 0x100000
u32 osGetMemSize(void) {
u32* ptr;
u32 size;
u32 data0;
u32 data1;
size = 0x400000;
while (size < 0x800000) {
ptr = (u32*)(0xA0000000 + size);
data0 = *ptr;
data1 = ptr[STEP / 4 - 1];
*ptr ^= ~0;
ptr[STEP / 4 - 1] ^= ~0;
if ((*ptr != (data0 ^ ~0)) || (ptr[STEP / 4 - 1] != (data1 ^ ~0))) {
return size;
}
*ptr = data0;
ptr[STEP / 4 - 1] = data1;
size += STEP;
}
return size;
}