mbed library sources
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targets/cmsis/TARGET_NXP/TARGET_LPC82X/TOOLCHAIN_ARM_MICRO/sys.cpp
- Committer:
- lzbpli
- Date:
- 2016-07-07
- Revision:
- 636:b0d178e9fa10
- Parent:
- 337:6ed01c00b962
File content as of revision 636:b0d178e9fa10:
/* mbed Microcontroller Library - stackheap * Copyright (C) 2009-2011 ARM Limited. All rights reserved. * * Setup a fixed single stack/heap memory model, * between the top of the RW/ZI region and the stackpointer */ #ifdef __cplusplus extern "C" { #endif #include <rt_misc.h> #include <stdint.h> extern char Image$$RW_IRAM1$$ZI$$Limit[]; extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) { uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit; uint32_t sp_limit = __current_sp(); zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned struct __initial_stackheap r; r.heap_base = zi_limit; r.heap_limit = sp_limit; return r; } #ifdef __cplusplus } #endif