On 13 May 2014, at 07:06, Alexander Burger <a...@software-lab.de> wrote:
> > Basically you are implementing you own malloc(), which is still far away > from a single-instruction push, pop or stack arithmetic. Am I missing something? alloca() just adds an offset to the stack pointer: #include <stdlib.h> extern void foo(void *); void test() { foo(alloca(100)); } bash-3.2$ cc -fomit-frame-pointer -fno-stack-protector -c -O3 test.c bash-3.2$ otool -tV test.o test.o: (__TEXT,__text) section _test: 0000000000000000 subq $0x68, %rsp 0000000000000004 leaq 0x4(%rsp), %rdi 0000000000000009 callq _foo 000000000000000e addq $0x68, %rsp 0000000000000012 ret -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe