mirror of https://github.com/cc65/cc65.git
50 lines
857 B
C
50 lines
857 B
C
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/* issue #263 - cc65 miscompiles w/ a static variable and -O */
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#include <stdint.h>
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#include <stdio.h>
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int failures = 0;
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void __fastcall__ set_vram_update(unsigned char *ptr)
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{
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printf("set_vram_update: %04x\n", ptr);
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if (ptr != NULL) {
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failures++;
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}
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}
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unsigned char __fastcall__ ppu_wait_nmi(void)
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{
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// we need to make sure somehow the akku is not zero before the break
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return 0x1234;
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}
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unsigned char ctrl, ret, i;
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unsigned char gameloop (void)
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{
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ctrl = 0;
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ret = 0;
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while(1) {
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if (ctrl & 1) {
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while (--i) {
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ppu_wait_nmi();
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}
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break;
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}
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ctrl = 1;
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}
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// This will pass garbage, not NULL.
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set_vram_update(NULL);
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return ret;
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}
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int main(void)
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{
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gameloop();
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printf("failures: %d\n", failures);
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return failures;
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}
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