a C standard library for fx Casio calculators
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fxlibc/src/libc/stdlib/target/vhex-sh/malloc.S

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459 B

#ifdef __SUPPORT_VHEX_KERNEL
#include <bits/asm/unistd_32.h>
.text
.global _malloc
.type _malloc, @function
.align 2
/*
** extern void *malloc(size_t size);
** Allocate SIZE bytes of memory.
**
** @note:
** The MMU is used by Casio so we cannot implement brk or skr for technical
** reason (non-continius heap, no shared page, ...), so all memory management
** is performed by the Vhex kernel.
*/
_malloc:
trapa #__NR_proc_heap_alloc
rts
nop
.end
#endif