restructuring build setup

core/framebuffer.c

@@ -0,0 +1,46 @@
+// Driver implementation for Jank's text frame buffer
+
+// Buffer can display 80 columns by 25 Rows
+// Start of buffer is at (real)address 0x000B8000
+// Memory at this section is divided into 16-bit cells 
+    // | 15-8 | 7-4 | 0-3
+    // | Asci | FG  | BG
+#include "framebuffer.h"
+#include "io.h"
+
+static char* Frame_Buffer = (char*)FRAME_BUFFER_ADDR;
+//static char* Frame_Buffer_End = (char*)(FRAME_BUFFER_ADDR + AREA);
+
+// Writes character to a given cell in the framebuffer
+    // @cell parameter is the logical (linear)index into the buffer
+	// _not_ the actual offset from the buffer addr
+	// also proper location is caller's responsibility
+void write_cell_fb(unsigned cell, char c, char fg, char bg) {
+    Frame_Buffer[cell] = c;
+    Frame_Buffer[cell+1] = (fg & 0x0f << 4) | (bg & 0x0f);
+}
+
+
+void clear_fb() {
+	for(unsigned cell=0;cell<AREA; cell+=2) {
+		write_cell_fb(cell, ' ', 0x00, 0x00);
+	}
+}
+
+void fb_move_cursor(unsigned short position) {
+	out_buffer(FB_CMD, FB_HIGH_CMD);
+	out_buffer(FB_DATA, ((position >> 8) & 0x00ff) );
+	out_buffer(FB_CMD, FB_LOW_CMD);
+	out_buffer(FB_DATA, position & 0x00ff);
+}
+/* generic test func for this module */
+void test_fb() {
+	clear_fb();
+	write_cell_fb(FRAME_CELL(0), 'a', Green, White);
+	write_cell_fb(FRAME_CELL(1), 'b', Green, White);
+	write_cell_fb(FRAME_CELL(2), 'c', Green, White);
+	write_cell_fb(FRAME_CELL(3), 'c', Green, White);
+	write_cell_fb(FRAME_CELL(4), 'c', Green, White);
+	write_cell_fb(FRAME_CELL(5), 'c', Green, White);
+	fb_move_cursor(5);
+}

core/framebuffer.h

@@ -0,0 +1,48 @@
+#include "stl/string.h"
+#include "io.h"
+
+#define COLUMNS 80
+#define ROWS 25
+#define AREA ( COLUMNS * ROWS )
+
+// frame buffer port commansd
+#define FB_CMD 0x3d4
+#define FB_DATA 0x3d5
+
+#define FB_HIGH_CMD 14
+#define FB_LOW_CMD 15
+
+void fb_move_cursor(unsigned short position);
+
+// address of our frame buffer
+#define FRAME_BUFFER_ADDR 0x000B8000
+
+// Logical index of a cell in the frame buffer
+#define FRAME_CELL(cell_) (cell_ * 2)
+
+// Colors available in text framebuffer
+#define Black 0x01
+#define Blue 0x02
+#define Green 0x03
+#define Cyan 0x04
+#define Red 0x05
+#define Magenta 0x05
+#define Brown 0x06
+#define LightGrey 0x07
+#define DarkGrey 0x08
+#define LightBlue 0x09
+#define LightGreen 0x0a
+#define LightCyan 0x0b
+#define LightRed 0x0c
+#define LightMagenta 0x0d
+#define LightBrown 0x0e
+#define White 0x0f
+
+void write_cell_fb(unsigned cell, char c , char fg, char bg);
+
+void print_fb(char* str, unsigned position);
+
+void clear_fb();
+
+/* Testing function because yote squad in here yeye */
+void test_fb();

core/kernel.c

@@ -0,0 +1 @@
+// Main kernel code (duh)