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Fix: scrolling bug + shell void input

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xamidev
2024-07-24 11:17:48 +02:00
parent 01a4016f15
commit d83299cb48
5 changed files with 24 additions and 8 deletions
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0
src/libc/crypto.c Normal file
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21
src/libc/stdio.c
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@@ -57,12 +57,14 @@ unsigned int getcolor(int x, int y)
void scroll(int lines)
{
for (unsigned int y = lines; y < VGA_HEIGHT; y++)
if (lines <= 0 || (unsigned int)lines >= VGA_HEIGHT) return;
for (unsigned int y = 0; y < VGA_HEIGHT-lines; y++)
{
for (unsigned int x = 0; x < VGA_WIDTH; x++)
{
putchar(x, y-lines, getchar(x, y));
putcolor(x, y-lines, getcolor(x, y));
putchar(x, y, getchar(x, y+lines));
putcolor(x, y, getcolor(x, y+lines));
}
}
@@ -70,10 +72,15 @@ void scroll(int lines)
{
for (unsigned int x = 0; x < VGA_WIDTH; x++)
{
putchar(x, y, '\0');
putchar(x, y, ' ');
putcolor(x, y, COLOR);
}
}
VGA_Y -= lines;
if ((int)VGA_Y < 0) {
VGA_Y = 0;
}
}
void putc(char c)
@@ -89,6 +96,10 @@ void putc(char c)
break;
case '\t':
VGA_X += 4;
if (VGA_X >= VGA_WIDTH) {
VGA_X -= VGA_WIDTH;
VGA_Y++;
}
break;
default:
putchar(VGA_X, VGA_Y, c);
@@ -361,4 +372,4 @@ void get_input(char *buffer, int size) {
putc(c);
}
buffer[index] = '\0';
}
}