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use __end__ not __HeapLimit

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This commit is contained in:
graham sanderson 2024-07-21 20:52:31 -05:00
parent 03ef3ad984
commit 836a29586f
1 changed files with 3 additions and 3 deletions
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6
src/pico/i_system.c
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@ -138,9 +138,9 @@ static byte *AutoAllocMemory(int *size, int default_ram, int min_ram)
zonemem = malloc(*size);
#else
#if PICO_ON_DEVICE
// we have set heap size to 0, so __HeapLimit is a good value
extern char __HeapLimit;
zonemem = (uint8_t *)(((uintptr_t)&__HeapLimit)&~3);
// we have set heap size to 0, so __end__ is a good value
extern char __end__;
zonemem = (uint8_t *)(((uintptr_t)&__end__)&~3);
*size = ((uint8_t *)SRAM4_BASE) - zonemem;
#else
#error use zone for malloc only on device