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cc65/test/val/bug1252.c

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// bug #1252 - inline asm: cc65 chokes on label ref if space/tab follows
#include <stdlib.h>
int main(void)
{
// first test the recommended way to use labels in inline assembly:
// this works
c_label:
asm("inx\n"
"bne %g\n",
c_label);
// this does not work
c_label2:
asm("inx\n"
"bne %g \n",
c_label2);
// now the following is from the original bug report. note that using labels
// this way only works by chance - the name of the label may clash with
// generated labels
// this works
asm("label1: inx\n"
"bne label1\n");
// this does not work
asm("label2: inx\n"
"bne label2 \n");
// a variant of the above using local labels.
// this works
asm("@label1: inx\n"
"bne @label1\n");
// this does not work
asm("@label2: inx\n"
"bne @label2 \n");
return EXIT_SUCCESS;
}