Cleaned up autotyping and made code closer to original repo style

AUTOTYPING.TXT

@@ -0,0 +1 @@
+280.28f

KBD.TXT

@@ -1 +0,0 @@
-Change content of the "kbd.txt" file to change auto-keyboard input.

README

@@ -1,15 +1,7 @@
 # Fork of napple1
 
-This forks enables to emulate keyboard entry on the apple1
-
-This kludge is done by creating a "KBD.TXT" file. When pressing "shift-K",
-the keyboard I/O will be replaced by the content of this file.
-
-This have been done to be able to load basic programs and use the 'dump"
-features to transfer them to binary files.
-
-
-
+This forks enables to emulate keyboard entry on the apple1. When pressing "shift-K",
+the keyboard I/O will be replaced by the content of the 'AUTOTYPING.TXT' file. (note: this have been done to be able to type in basic programs and use the 'dump" features to transfer them to binary files).
 
 napple1 is an Apple 1 emulator using ncurses, ported from the SDL version 
 Pom1 emulafor. If you have some questions, please report it as an issue. 

src/keyboard.c

@@ -27,7 +27,40 @@
 
 #include <stdio.h>
 
-FILE *kbd_txt;
+FILE *autotyping_file = NULL;
+
+int startAutotyping(const char *filename)
+{
+	if (autotyping_file)
+		stopAutotyping();
+	autotyping_file = fopen(filename, "r");
+	return !!autotyping_file;
+}
+
+int nextAutotyping(void)
+{
+	if (!autotyping_file)
+		return -1;
+	int c = fgetc(autotyping_file);
+	if (c!=EOF) {
+		if (c=='\n')
+			c = 0x0d;
+		if (c>='a' && c<='z')
+			c = c - 'a' + 'A';
+		writeKbd((unsigned char)(c + 0x80));
+		writeKbdCr(0xA7); 
+	}
+	else
+		stopAutotyping();
+	return c;
+}
+
+void stopAutotyping(void)
+{
+	if (autotyping_file)
+		fclose(autotyping_file);
+	autotyping_file = NULL;
+}
 
 int handleInput(void)
 {
@@ -36,13 +69,11 @@ int handleInput(void)
 	tmp = '\0';
 	while ( (tmp = getch_screen()) == '\0' )
 		;
-	if (tmp=='K')
-	{
-			/* We open the "KBD.TXT" file if it exists */
-		kbd_txt = fopen("KBD.TXT", "r");
-		return 1;
+	if (tmp=='K') {
+		if (startAutotyping("AUTOTYPING.TXT"))
+			return 1;
 	}
-	if (tmp == 'B') {
+	else if (tmp == 'B') {
 		loadBasic();
 		resetPia6820();
 		resetM6502();

src/keyboard.h

@@ -20,3 +20,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 int handleInput(void);
+int startAutotyping(const char *filename);
+int nextAutotyping(void);
+void stopAutotyping(void);

src/makefile

@@ -1,8 +1,7 @@
 # napple1 makefile 
 # Nobu Hatano <nobuhatano@gmail.com>
 CC = gcc
-CFLAGS = -Wall
-# CFLAGS = -Wall -ansi
+CFLAGS = -Wall -ansi
 THREAD = -lpthread
 
 # Support Linux and Cygwin

src/memory.c

@@ -82,6 +82,7 @@
 #include "memory.h"
 #include "screen.h"
 #include "msgbuf.h"
+#include "keyboard.h"
 
 #define MEMMAX 0xFFFF
 #define FNAME_LEN_MAX 1024
@@ -164,26 +165,8 @@ unsigned char memRead(unsigned short address)
 	if (address == 0xD011)
 	{
 		unsigned char v = readKbdCr();
-		extern FILE *kbd_txt;
-		if (!(v & 0x80) && kbd_txt)
-		{
-			// Read on char from file
-			int c = fgetc(kbd_txt);
-			if (c!=EOF)
-			{
-				if (c=='\n')
-					c = 0x0d;
-				if (v>='a' && v<='z')
-					c = c - 'a' + 'A';
-				writeKbd((unsigned char)(c + 0x80));
-				writeKbdCr(0xA7); 
-			}
-			else
-			{
-				fclose(kbd_txt);
-				kbd_txt = NULL;
-			}
-		}
+		if (!(v & 0x80))
+			nextAutotyping();
 		return v;
 	}
 	if (address == 0xD010)