dynarmic/sample/static_buf.cpp
MerryMage 4ed09fda06 Squashed 'externals/xbyak/' content from commit d512551e
git-subtree-dir: externals/xbyak
git-subtree-split: d512551e914737300ba35f3c049d1b40effbe76d
2020-04-22 20:25:57 +01:00

41 lines
731 B
C++

/*
sample to use static memory
*/
#include <stdio.h>
#define XBYAK_NO_OP_NAMES
#include "xbyak/xbyak.h"
MIE_ALIGN(4096) char buf[4096];
struct Code : Xbyak::CodeGenerator {
Code()
: Xbyak::CodeGenerator(sizeof(buf), buf)
{
puts("generate");
printf("ptr=%p, %p\n", getCode(), buf);
Xbyak::CodeArray::protect(buf, sizeof(buf), true);
#ifdef XBYAK32
mov(eax, ptr [esp + 4]);
add(eax, ptr [esp + 8]);
#elif defined(XBYAK64_WIN)
lea(rax, ptr [rcx + rdx]);
#else
lea(rax, ptr [rdi + rsi]);
#endif
ret();
}
} s_code;
inline int add(int a, int b)
{
return Xbyak::CastTo<int (*)(int,int)>(buf)(a, b);
}
int main()
{
int sum = 0;
for (int i = 0; i < 10; i++) {
sum += add(i, 5);
}
printf("sum=%d\n", sum);
}