Created
January 6, 2020 16:02
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alloca test for nxdk
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| #include <hal/debug.h> | |
| #include <hal/video.h> | |
| #include <windows.h> | |
| #include <malloc.h> | |
| #include <string.h> | |
| // tests whether alloca overlaps other parts of the stack | |
| // by writing into an alloca allocated buffer and then | |
| // checking other variables on the stack. Also tests | |
| // whether we can return properly afterwards | |
| void testfunc () | |
| { | |
| int a = 0xDEADBEEF; | |
| char *buf = alloca(256); | |
| int b = 0xDEADC0DE; | |
| debugPrint("&a: %p\n", &a); | |
| debugPrint("buf: %p\n", buf); | |
| debugPrint("&b: %p\n", &b); | |
| memset(buf, 0, 256); | |
| debugPrint("a: %X\n", a); | |
| debugPrint("b: %X\n", b); | |
| } | |
| int main(void) | |
| { | |
| XVideoSetMode(640, 480, 32, REFRESH_DEFAULT); | |
| debugPrint("calling testfunc()\n"); | |
| testfunc(); | |
| debugPrint("testfunc() done\n"); | |
| while(1) { | |
| Sleep(2000); | |
| } | |
| return 0; | |
| } |
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