coreboot-kgpe-d16/util/romcc/tests/simple_test32.c

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void main(void)
{
unsigned long addr, start, stop;
start = 0x00100000;
stop = 0x00180000;
for(addr = start; addr < stop ;) {
unsigned char ch;
const char *str = "\r";
while((ch = *str++) != '\0') {
while(__builtin_inb(0x3f))
;
__builtin_outb(ch, 0x3f8);
while(__builtin_inb(0x3f))
;
}
asm (
"jmp 2f\n\t"
"1:\n\t"
"testl $0xffff, %0\n\t"
"jz 3f\n\t"
"movnti %0, (%0)\n\t"
"add $4, %0\n\t"
"2:\n\t"
"cmp %2, %0\n\t"
"jl 1b\n\t"
"3:\n\t"
: "=b" (addr) /* outputs */
: "0" (addr), "r" (stop) /* intputs */
: /* clobbers */
);
};
}