diff options
Diffstat (limited to 'src/kernel/system.c')
| -rw-r--r-- | src/kernel/system.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/kernel/system.c b/src/kernel/system.c index 688b0b1..303fc83 100644 --- a/src/kernel/system.c +++ b/src/kernel/system.c @@ -5,7 +5,15 @@ char *vga_buffer = (char *) 0x500; +void vga_clear() { + uint16_t *terminal_buffer = (uint16_t *) 0xB8000; + for (size_t y = 0; y < 25; y++) + for (size_t x = 0; x < 80; x++) + terminal_buffer[y * 80 + x] = 0 | (uint16_t) 0x700; +} + void vga_log(char *msg, int line) { + if (line == 0) vga_clear(); uint16_t *terminal_buffer = (uint16_t *) 0xB8000; for (size_t i = 0; i < strlen(msg); i++) terminal_buffer[line * 80 + i] = (uint16_t) msg[i] | (uint16_t) 0x700; |