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Project structure and standard library string and VGA and terminal drivers

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Ben
2019-04-24 23:40:10 +01:00
parent 24409c3a17
commit fa35441595
16 changed files with 68 additions and 40 deletions
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46
kernel.cpp
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@@ -1,41 +1,23 @@
#define TERM_WIDTH 80
#define TERM_HEIGHT 25
struct VGAChar_t {
char c;
char foreground:4;
char background:4;
}__attribute__((packed));
VGAChar_t* framebuffer = (VGAChar_t*)0xB8000;
void putcar(int x, int y, char c, char foreground, char background) {
framebuffer[(y * TERM_WIDTH) + x].c = c;
framebuffer[(y * TERM_WIDTH) + x].foreground = foreground;
framebuffer[(y * TERM_WIDTH) + x].background = background;
}
#include <kernel/drivers/VGA/vga.h>
extern "C"
int kernel_main() {
for (int x = 0; x < TERM_WIDTH; x++)
for (int y = 0; y < TERM_HEIGHT; y++)
putcar(x, y, ' ', 0x00, 0x00);
putcar(0, 0, 'H', 0x01, 0x07);
putcar(1, 0, 'A', 0x01, 0x07);
putcar(2, 0, 'H', 0x01, 0x07);
putcar(3, 0, 'A', 0x01, 0x07);
putcar(4, 0, '!', 0x01, 0x07);
putcar(5, 0, ' ', 0x01, 0x07);
putcar(6, 0, 'P', 0x01, 0x07);
putcar(7, 0, 'E', 0x01, 0x07);
putcar(8, 0, 'N', 0x01, 0x07);
putcar(9, 0, 'I', 0x01, 0x07);
putcar(10, 0, 'S', 0x01, 0x07);
putcar(11, 0, '!', 0x01, 0x07);
putchar(0, 0, 'H', 0x01, 0x07);
putchar(1, 0, 'A', 0x01, 0x07);
putchar(2, 0, 'H', 0x01, 0x07);
putchar(3, 0, 'A', 0x01, 0x07);
putchar(4, 0, '!', 0x01, 0x07);
putchar(5, 0, ' ', 0x01, 0x07);
putchar(6, 0, 'P', 0x01, 0x07);
putchar(7, 0, 'E', 0x01, 0x07);
putchar(8, 0, 'N', 0x01, 0x07);
putchar(9, 0, 'I', 0x01, 0x07);
putchar(10, 0, 'S', 0x01, 0x07);
putchar(11, 0, '!', 0x01, 0x07);
for (;;)
asm("hlt");
}