OS now allocs memory for called files. Slightly improved screen.h

include/graphics.h

@@ -18,6 +18,8 @@
 #define rgb(r,g,b) ( ((r) << 16 | (g) << 8 | (b)) & 0x00ffffff )
 
 void drawPixel(int32_t x, int32_t y, uint32_t color) {
+    uint32_t* vidmem = *(uint32_t**)(MODE_INFO_BLOCK + 40);
+    
     uint32_t offset = (y * WIDTH) + x;
     vidmem[offset] = color;
 }
@@ -94,6 +96,8 @@ void drawCircle(int32_t x, int32_t y, uint16_t radius, uint32_t color) {
 
 // Recursive (may need large stack)
 void boundaryFill(int32_t x, int32_t y, uint32_t fillColor, uint32_t boundaryColor) {
+    uint32_t* vidmem = *(uint32_t**)(MODE_INFO_BLOCK + 40);
+
     uint32_t offset = y * WIDTH + x;
 
     if (vidmem[offset] != fillColor && vidmem[offset] != boundaryColor) {

include/physicalMemManager.h

@@ -2,6 +2,7 @@
 #define PHYSICAL_MEM_MANAGER_H
 
 #include "string.h"
+#include "stdint.h"
 
 #define BLOCK_SIZE 4096 // 4kB
 #define BLOCKS_PER_BYTE 8

include/screen.h

@@ -14,19 +14,13 @@ struct cursor_s {
     uint32_t y;
 };
 
-static char* font;
-uint32_t* vidmem;
-uint16_t bytesPerScanline;
+static char* font = (char*)0x6000;
 
 static struct cursor_s cursor = { 0, 0 };
 
-void setupScreen() {
-    vidmem = *(uint32_t**)(MODE_INFO_BLOCK + 40); // Vidmem pointer location
-    bytesPerScanline = *(uint16_t*)(MODE_INFO_BLOCK + 16); // Bytes per scanline location
-}
-
 // TODO: Probably make the font bigger in a better way, but this works for now
 void putcAt(unsigned char c, uint32_t x, uint32_t y) {
+    uint32_t* vidmem = *(uint32_t**)(MODE_INFO_BLOCK + 40);
     uint32_t offset = (WIDTH * y * 16 + x * 8) * 2;
 
     char* bitmap = &font[((c % 128) - 1) * 16];
@@ -73,6 +67,8 @@ void print(const char* str) {
 }
 
 void clear() {
+    uint32_t* vidmem = *(uint32_t**)(MODE_INFO_BLOCK + 40);
+
     size_t i = 0;
     while (i < WIDTH*HEIGHT) {
         vidmem[i] = BG_COLOR; // #1f2937
@@ -83,8 +79,4 @@ void clear() {
     cursor.y = 0;
 }
 
-void loadFont(char* address) {
-    font = address;
-}
-
 #endif