73 lines
1.2 KiB
C++
73 lines
1.2 KiB
C++
#include "terminal.h"
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#include <kernel/kernio.h>
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static const int TERMINAL_WIDTH = 80;
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static const int TERMINAL_HEIGHT = 24;
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static char* frameBuffer = (char*)0xB8000;
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static char clearColour = 0x0;
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static char bgColour = 0x0;
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static char fgColour = 0xF;
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struct Cursor {
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uint8_t x;
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uint8_t y;
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} __attribute__((packed));
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Cursor cursor;
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void cls() {
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for (uint8_t x = 0; x < TERMINAL_WIDTH; x++) {
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for (uint8_t y = 0; y < TERMINAL_HEIGHT; y++) {
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frameBuffer[x + TERMINAL_WIDTH * y] = 0;
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}
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}
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moveCursor(0,0);
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}
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void putchar(char input) {
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}
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void write(char* input) {
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}
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void writeln(char* input) {
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write(input);
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nline();
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}
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void nline() {
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}
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void setClearColour(char col) {
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clearColour = col;
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}
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void showCursor() {
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outb(0x3D4, 0x0A);
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outb(0x3D5, (inb(0x3D5) & 0xC0) | 1);
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outb(0x3D4, 0x0B);
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outb(0x3D5, (inb(0x3D5) & 0xE0) | 1);
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}
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void hideCursor() {
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outb(0x3D4, 0x0A);
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outb(0x3D5, 0x20);
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}
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void moveCursor(int x, int y) {
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uint16_t pos = y * TERMINAL_WIDTH + x;
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outb(0x3D4, 0x0F);
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outb(0x3D5, (uint8_t) (pos & 0xFF));
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outb(0x3D4, 0x0E);
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outb(0x3D5, (uint8_t) ((pos >> 8) & 0xFF));
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}
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