31 lines
745 B
C
31 lines
745 B
C
#include "vga.h"
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void clearScreen(int bgColor)
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{
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volatile short *vga = (short *)VGA_ADDR;
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long int colorAttr = bgColor << 12;
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for (int i = 0; i < VGA_WIDTH * VGA_HEIGHT; i++) {
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vga[i] = colorAttr;
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}
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}
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void printChar(const char str, int color, int bgColor, int startX, int startY)
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{
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volatile short *vga = (short *)VGA_ADDR;
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long int colorAttr = (bgColor << 4 | (color & 0x0f)) << 8;
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vga[80 * startY + startX] = colorAttr | str;
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}
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void printString(const char *str, int color, int bgColor, int startX,
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int startY)
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{
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volatile short *vga = (short *)VGA_ADDR;
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int i = 0;
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long int colorAttr = (bgColor << 4 | (color & 0x0f)) << 8;
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while (*str) {
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vga[80 * startY + startX + i] = colorAttr | *str;
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str++;
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i++;
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}
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}
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