46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
#include <stdint.h>
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#include <stddef.h>
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#include <limine.h>
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// The Limine requests can be placed anywhere, but it is important that
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// the compiler does not optimise them away, so, usually, they should
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// be made volatile or equivalent.
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static volatile struct limine_terminal_request terminal_request = {
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.id = LIMINE_TERMINAL_REQUEST,
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.revision = 0
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};
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static void done(void) {
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for (;;) {
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asm ("hlt");
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}
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}
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// Our quick and dirty strlen() implementation.
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size_t strlen(const char *str) {
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size_t ret = 0;
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while (*str++) {
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ret++;
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}
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return ret;
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}
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// The following will be our kernel's entry point.
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void _start(void) {
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// Ensure we got a terminal
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if (terminal_request.response == NULL
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|| terminal_request.response->terminal_count < 1) {
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done();
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}
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// We should now be able to call the Limine terminal to print out
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// a simple "Hello World" to screen.
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const char *hello_msg = "Hello World";
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struct limine_terminal *terminal = terminal_request.response->terminals[0];
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terminal_request.response->write(terminal, hello_msg, strlen(hello_msg));
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// We're done, just hang...
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done();
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}
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