Feat: better screen formating & better project resstructure

2026-08-05 13:40:42 +01:00
parent 7a4394feb6
commit f80dafd03d
14 changed files with 277 additions and 170 deletions
@@ -0,0 +1,7 @@
+#ifndef KERNEL_H
+#define KERNEL_H
+
+#define __KERNEL_VERSION "0.1.0-alpha"
+#define __KERNEL_NAME "SoraOS"
+
+#endif
@@ -0,0 +1,126 @@
+#ifndef COLORS_H
+#define COLORS_H
+
+#include "stdmem.h"
+#include "types.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define VGA_WIDTH 80
+#define VGA_HEIGHT 25
+
+#define VGA_MEMORY_ADDRESS 0xB8000
+
+/*
+ * FOR INPUT
+ */
+
+#define KEYBOARD_BUFFER_SIZE 256
+
+#define SCANCODE_LSHIFT 0x2A
+#define SCANCODE_RSHIFT 0x36
+#define SCANCODE_CAPSLOCK 0x3A
+#define RELEASE_MASK 0x80
+
+static volatile unsigned char _keyboard_buffer[KEYBOARD_BUFFER_SIZE];
+static volatile uint16_t _kb_head = 0;
+static volatile uint16_t _kb_tail = 0;
+
+static char __g_shift_pressed = 0;
+static char __g_caps_lock_active = 0;
+
+// C99 Designated Initializers for Unshifted ASCII Characters
+static const char scancode_ascii_unshifted[128] = {
+	[0x01] = 27, // ESC
+	[0x02] = '1',  [0x03] = '2',  [0x04] = '3', [0x05] = '4', [0x06] = '5', [0x07] = '6', [0x08] = '7', [0x09] = '8', [0x0A] = '9', [0x0B] = '0', [0x0C] = '-',
+	[0x0D] = '=',  [0x0E] = '\b', // Backspace
+	[0x0F] = '\t',				  // Tab
+	[0x10] = 'q',  [0x11] = 'w',  [0x12] = 'e', [0x13] = 'r', [0x14] = 't', [0x15] = 'y', [0x16] = 'u', [0x17] = 'i', [0x18] = 'o', [0x19] = 'p', [0x1A] = '[',
+	[0x1B] = ']',  [0x1C] = '\n', // Enter
+	[0x1E] = 'a',  [0x1F] = 's',  [0x20] = 'd', [0x21] = 'f', [0x22] = 'g', [0x23] = 'h', [0x24] = 'j', [0x25] = 'k', [0x26] = 'l', [0x27] = ';', [0x28] = '\'',
+	[0x29] = '`',  [0x2C] = 'z',  [0x2D] = 'x', [0x2E] = 'c', [0x2F] = 'v', [0x30] = 'b', [0x31] = 'n', [0x32] = 'm', [0x33] = ',', [0x34] = '.', [0x35] = '/',
+	[0x39] = ' ' // Spacebar
+};
+
+// C99 Designated Initializers for Shifted ASCII Characters
+static const char scancode_ascii_shifted[128] = {
+	[0x01] = 27, // ESC
+	[0x02] = '!', [0x03] = '@', [0x04] = '#',  [0x05] = '$',  [0x06] = '%', [0x07] = '^', [0x08] = '&',	 [0x09] = '*', [0x0A] = '(', [0x0B] = ')',
+	[0x0C] = '_', [0x0D] = '+', [0x0E] = '\b', [0x0F] = '\t', [0x10] = 'Q', [0x11] = 'W', [0x12] = 'E',	 [0x13] = 'R', [0x14] = 'T', [0x15] = 'Y',
+	[0x16] = 'U', [0x17] = 'I', [0x18] = 'O',  [0x19] = 'P',  [0x1A] = '{', [0x1B] = '}', [0x1C] = '\n', [0x1E] = 'A', [0x1F] = 'S', [0x20] = 'D',
+	[0x21] = 'F', [0x22] = 'G', [0x23] = 'H',  [0x24] = 'J',  [0x25] = 'K', [0x26] = 'L', [0x27] = ':',	 [0x28] = '"', [0x29] = '~', [0x2C] = 'Z',
+	[0x2D] = 'X', [0x2E] = 'C', [0x2F] = 'V',  [0x30] = 'B',  [0x31] = 'N', [0x32] = 'M', [0x33] = '<',	 [0x34] = '>', [0x35] = '?', [0x39] = ' '};
+
+/* IN VGA - Video Memory Arrya:
+ * short
+ * 1s byte (left most)  -> TEXT COLOR
+ * 2s byte              -> BACK COLOR
+ * 3rd and 4rt byte     -> TEXT (unsigned char) AKA CodePoint
+ */
+
+typedef struct __attribute__((packed)) _VGA {
+	unsigned char codepoint; // 3rd and 4th byte
+	unsigned char color;	 // 1st byte: text color, 2nd byte: background color
+							 // LAST BIT IS BLINKING FLAG
+} _VGA;
+
+typedef enum _VGA_COLOR {
+	BLACK = 0x0,
+	BLUE = 0x1,
+	GREEN = 0x2,
+	CYAN = 0x3,
+	RED = 0x4,
+	MAGENTA = 0x5,
+	BROWN = 0x6,
+	LIGHT_GREY = 0x7,
+	DARK_GREY = 0x8,
+	LIGHT_BLUE = 0x9,
+	LIGHT_GREEN = 0xA,
+	LIGHT_CYAN = 0xB,
+	LIGHT_RED = 0xC,
+	LIGHT_MAGENTA = 0xD,
+	YELLOW = 0xE,
+	WHITE = 0xF
+} _VGA_COLOR;
+
+typedef struct _VGA_screen_space {
+	unsigned int line;
+	unsigned int column;
+
+} _VGA_screen_space;
+
+static _VGA_screen_space cursor_pos = {0, 0};
+static _VGA_screen_space text_pos = {0, 0};
+
+static unsigned int tab_pos = 0;
+
+#define DEFAULT_BG BLUE
+#define DEFAULT_FG WHITE
+
+/*
+ * END OF DECLARATIONS
+ */
+
+/*
+ * START OF OUTPUT FUNCTIONS
+ */
+
+int printf(const char *fmt, ...);
+
+void clear_screen();
+
+/*
+ * END OF OUTPUT FUNCTIONS
+ */
+
+/*
+ * START OF INPUT FUNCTIONS
+ */
+void scursor(unsigned int column, unsigned int line); 
+
+void gets(char *buffer, size_t max_length);
+
+int scanf(const char *fmt, ...);
+#endif
@@ -0,0 +1,23 @@
+#ifndef STDMEM_H
+#define STDMEM_H
+
+#include "types.h"
+
+static inline void *__memmove(void *dest, const void *src, uint64_t n) {
+    unsigned char *__d = (unsigned char *)dest;
+    const unsigned char *__s = (const unsigned char *)src;
+
+    if (__d < __s) {
+        for (unsigned long long i = 0; i < n; i++) {
+            __d[i] = __s[i];
+        }
+    } else {
+        for (unsigned long long i = n; i > 0; i--) {
+            __d[i - 1] = __s[i - 1];
+        }
+    }
+
+    return dest;
+}
+
+#endif // STDMEM_H
@@ -0,0 +1,92 @@
+#ifndef TYPES_H
+#define TYPES_H
+
+#include <stdint.h>
+
+static char* __itoa(int value, char* buffer, int base) {
+    char* ptr = buffer, *ptr1 = buffer, tmp_char;
+    int tmp_value;
+
+    if (value < 0 && base == 10) {
+        value = -value;
+        *ptr++ = '-';
+        ptr1++;
+    }
+
+    do {
+        tmp_value = value;
+        value /= base;
+        *ptr++ = "0123456789ABCDEF"[tmp_value - value * base];
+    } while (value);
+
+    *ptr-- = '\0';
+
+    while (ptr1 < ptr) {
+        tmp_char = *ptr;
+        *ptr-- = *ptr1;
+        *ptr1++ = tmp_char;
+    }
+
+    return buffer;
+}
+
+static char* __utoa(unsigned int value, char* buffer, int base) {
+    char* ptr = buffer, *ptr1 = buffer, tmp_char;
+    unsigned int tmp_value;
+
+    do {
+        tmp_value = value;
+        value /= base;
+        *ptr++ = "0123456789ABCDEF"[tmp_value - value * base];
+    } while (value);
+
+    *ptr-- = '\0';
+
+    while (ptr1 < ptr) {
+        tmp_char = *ptr;
+        *ptr-- = *ptr1;
+        *ptr1++ = tmp_char;
+    }
+
+    return buffer;
+}
+
+static char* __ftoa(double value, char* buffer) {
+    int int_part = (int)value;
+    double frac_part = value - (double)int_part;
+    char* ptr = __itoa(int_part, buffer, 10);
+
+    *ptr++ = '.';
+
+    for (int i = 0; i < 6; i++) {
+        frac_part *= 10.0;
+        int digit = (int)frac_part;
+        *ptr++ = '0' + digit;
+        frac_part -= (double)digit;
+    }
+
+    *ptr = '\0';
+    return buffer;
+}
+
+static char* itoa(int value, char* buffer) {
+    return __itoa(value, buffer, 10);
+}
+
+static char* utoa(unsigned int value, char* buffer) {
+    return __utoa(value, buffer, 10);
+}
+
+static char* otoa(unsigned int value, char* buffer) {
+    return __utoa(value, buffer, 8);
+}
+
+static char* xtoa(unsigned int value, char* buffer) {
+    return __utoa(value, buffer, 16);
+}
+
+static char* ftoa(double value, char* buffer) {
+    return __ftoa(value, buffer);
+}
+
+#endif // TYPES_H