Ускорение вывода на экран

include/arch.h

@@ -77,7 +77,7 @@ void idt_set_int(uint8_t vector, int_entry_t handler);
 uint64_t arch_get_tick_b( );
 uint64_t arch_get_tick_l( );
 uint64_t arch_get_tick( );
-void com_write_byte(uint8_t byte);
+void com_write_byte(char byte);
 void com_write_bytes(char *c, uint64_t n);
 time_t rtc_get_time( );
 
@@ -105,6 +105,26 @@ static inline void io_wait( ) {
 	outb(0x80, 0);
 }
 
+static inline void *hal_memset(void *s, char c, int64_t count) {
+	int64_t d0, d1;
+	asm volatile("rep\n\t"
+	             "stosb"
+	             : "=&c"(d0), "=&D"(d1)
+	             : "a"(c), "1"(s), "0"(count)
+	             : "memory");
+	return s;
+}
+
+static inline void *hal_memset_32(void *s, uint32_t c, int64_t count) {
+	int64_t d0, d1;
+	asm volatile("rep\n\t"
+	             "stosl"
+	             : "=&c"(d0), "=&D"(d1)
+	             : "a"(c), "1"(s), "0"(count)
+	             : "memory");
+	return s;
+}
+
 #define GET_TICK_BIG arch_get_tick_b( )
 #define GET_TICK_lOW arch_get_tick_l( )
 

include/log.h

@@ -21,6 +21,7 @@
 void log_init( );
 void log_init_mem( );
 void log_printf(char *str, ...);
+char *utf8cp(char *str);
 
 #ifndef NO_DEBUG
 #define LOG(...)                                                                                                       \

include/tool.h

@@ -41,6 +41,7 @@ static inline void pause( ) {
 
 void tool_memcpy(void *dest, void *src, uint64_t n);
 void *tool_memset(void *ptr, uint8_t n, uint64_t size);
+void tool_memmove(void *dest, void *src, uint64_t n);
 uint64_t tool_strlen(const char *str);
 void tool_strcpy(char *dest, char *src);
 int tool_strcmp(const char *s1, const char *s2);

kernel/fb.c

@@ -53,16 +53,17 @@ void fb_init( ) {
 
 	for (uint64_t i = 0; i < width * height; i++) { fb_addr[i] = background; }
 
-	LOG("0x%x %ux%u\n", fb_addr, width, height);
-
 	if (framebuffer_response->framebuffer_count == 1) { return; }
 
+#ifdef DEBUG_FB
 	LOG("Инициализация дополнительных: %u мониторов\n", framebuffer_response->framebuffer_count);
-
+#endif
 	for (uint64_t i = 1; i < framebuffer_response->framebuffer_count; i++) {
 		struct limine_framebuffer *framebuffer = framebuffer_response->framebuffers[i];
 		uint32_t *framebuffer_addr = (uint32_t *)framebuffer->address;
+#ifdef DEBUG_FB
 		LOG("[%u]->0x%x %ux%u\n", i, framebuffer->address, framebuffer->width, framebuffer->height);
+#endif
 		for (uint64_t ij = 0; ij < width * height; ij++) { framebuffer_addr[ij] = background; }
 	}
 }

kernel/log.c

@@ -34,8 +34,9 @@ static inline uint32_t analyze(char glyth) {
 
 // Вывод символа по координатам
 static void print_char(uint64_t x, uint64_t y, char glyth) {
+	uint32_t glyth_index = analyze(glyth);
 	for (uint64_t i = 0; i < FONT_6X8_SLIM_CHAR_HEIGHT; i++) {
-		fb_print_bits(x, y + i, font_6x8_slim[analyze(glyth) + i]);
+		fb_print_bits(x, y + i, font_6x8_slim[glyth_index + i]);
 	}
 }
 
@@ -45,7 +46,10 @@ void log_dump_buffer( ) {
 
 static void log_fb_putchar(char c) {
 	if (c == '\0' || fb_init_status < 1) { return; }
-	if (c == '\t') {
+
+	if (c == '\r') {
+		log_buffer[--buf_pos] = 0;
+	} else if (c == '\t') {
 		fb_pos_x += FONT_6X8_SLIM_CHAR_WIDTH * 4;
 	} else if (c == '\n') {
 		fb_pos_x = 4;
@@ -58,12 +62,8 @@ static void log_fb_putchar(char c) {
 
 		if (fb_pos_y + FONT_6X8_SLIM_CHAR_HEIGHT >= SCREEN_HEIGHT) {
 			// Дошли до нижнего края экрана
-			while (log_buffer[0] != '\n') {
-				for (uint64_t i = 0; i < buf_max - 1; i++) { log_buffer[i] = log_buffer[i + 1]; }
-				buf_pos--;
-			}
-			for (uint64_t i = 0; i < buf_max - 1; i++) { log_buffer[i] = log_buffer[i + 1]; }
-			buf_pos--;
+			while (log_buffer[0] != '\n') { tool_memmove(log_buffer, log_buffer + 1, --buf_pos); }
+			tool_memmove(log_buffer, log_buffer + 1, --buf_pos);
 			redraw_screen( );
 			return;
 		}
@@ -75,7 +75,7 @@ static void log_fb_putchar(char c) {
 
 void redraw_screen( ) {
 	// Перерисовка экрана
-	for (uint64_t i = 0; i < SCREEN_WIDTH * SCREEN_HEIGHT; i++) { SCREEN_BUFFER[i] = DARK_GREEN; }
+	hal_memset_32(SCREEN_BUFFER, DARK_GREEN, SCREEN_WIDTH * SCREEN_HEIGHT);
 
 	fb_pos_x = 4;
 	fb_pos_y = 0;
@@ -87,8 +87,6 @@ void log_putchar(char c) {
 	log_buffer[buf_pos] = c;
 	com_write_byte(c);
 
-	log_buffer[buf_pos] = c;
-
 	if (buf_pos + 1 == buf_max) {
 		// Смещение буфера на 1 символ влево
 		for (uint64_t i = 0; i < buf_max - 1; i++) { log_buffer[i] = log_buffer[i + 1]; }
@@ -109,24 +107,18 @@ void log_printf(char *str, ...) {
 	va_list args;
 	va_start(args, str);
 	tool_format(&log_putchar, str, args);
+
 	lock_release(log_lock);
 	va_end(args);
 }
 
 void log_init_mem( ) {
 	LOCK(log_lock);
-	if (fb_init_status < 1) {
-		LOG("Нет доступных фреймбуфферов для вывода\n");
-		return;
-	}
-
-	LOG("Полная инициализация отладчика занимает %u килобайт озу\n",
-	    (((SCREEN_WIDTH - 4) / FONT_WIDTH) * (SCREEN_HEIGHT / FONT_HEIGHT)) / 1024);
-
 	log_buffer = mem_alloc(((SCREEN_WIDTH - 4) / FONT_WIDTH) * (SCREEN_HEIGHT / FONT_HEIGHT));
 	tool_memcpy(log_buffer, start_buffer, buf_max);
 	buf_max = ((SCREEN_WIDTH - 4) / FONT_WIDTH) * (SCREEN_HEIGHT / FONT_HEIGHT);
 	LOG("Размер буффера: %u символов\n", buf_max);
+	LOG("%ux%u\n", width, height);
 	redraw_screen( );
 	lock_release(log_lock);
 }

kernel/tool.c

@@ -23,6 +23,17 @@ void *tool_memset(void *ptr, uint8_t n, uint64_t size) {
 	return ptr;
 }
 
+void tool_memmove(void *dest, void *src, uint64_t n) {
+	unsigned char *cdest = (unsigned char *)dest;
+	unsigned char *csrc = (unsigned char *)src;
+
+	if (cdest < csrc) {
+		for (uint64_t i = 0; i < n; i++) { cdest[i] = csrc[i]; }
+	} else {
+		for (uint64_t i = n; i > 0; i--) { cdest[i - 1] = csrc[i - 1]; }
+	}
+}
+
 uint64_t tool_strlen(const char *str) {
 	uint64_t length = 0;
 	while (*str) {