53 lines
916 B
C
53 lines
916 B
C
#include "../lib/strcmp.h"
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void puts(const char *str) {
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asm volatile (
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"movl $1, %%eax\n\t"
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"movl $1, %%edi\n\t"
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"movl %0, %%esi\n\t"
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"int $0x80"
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:
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: "r"(str)
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: "%eax", "%edi", "%esi"
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);
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}
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void read(int fd, void *buf, int size) {
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asm volatile (
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"movl $0, %%eax\n\t"
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"int $0x80"
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:
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: "D"(fd), "d"(size), "S"(buf)
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: "eax"
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);
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}
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void reboot() {
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asm volatile (
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"movl $2, %%eax\n\t"
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"int $0x80"
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:
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:
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: "eax"
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);
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}
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extern char *buf;
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void _start() {
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char buf1[256] = {0};
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puts("Welcome to the Hazel user shell!\n");
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while (1) {
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puts("> ");
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read(0, buf1, 256);
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if (!strcmp(buf1, "SKIBIDI")) {
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puts("dop dop yes yes!\n");
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} else if (!strcmp(buf1, "REBOOT")) {
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reboot();
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}
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else {
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puts("unknown command!\n");
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}
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}
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}
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