Jordan Earls / MbedConsole Featured

A project to implement a console using the Mbed using VGA for video output and a PS/2 keyboard for the input. The eventual goal is to also include tools for managing SD cards, and a semi-self-hosting programming environment.

Dependencies:   PS2_MbedConsole fastlib SDFileSystem vga640x480g_mbedconsole lightvm mbed

MbedConsole is a cool little project to have a self-contained computer all on an Mbed. So far it has VGA and PS/2 support and can stand alone without a computer powering it. Next planned features are SD card support and a lightweight programmable VM complete with a file editor and self-hosted assembler.

You can view additional details about it at http://earlz.net/tags/mbedconsole

textio.cpp@20:13556e5bac04, 2013-04-15 (annotated)

Committer:
earlz
Date:
Mon Apr 15 02:37:02 2013 +0000
Revision:
20:13556e5bac04
Parent:
16:370b9e559f92 
Finally got SD card support working. WOW that was trickier than I expected

Who changed what in which revision?

UserRevisionLine numberNew contents of line
earlz 16:370b9e559f92 1 /*
earlz 16:370b9e559f92 2 <Copyright Header>
earlz 16:370b9e559f92 3 Copyright (c) 2012 Jordan "Earlz" Earls <http://lastyearswishes.com>
earlz 16:370b9e559f92 4 All rights reserved.
earlz 16:370b9e559f92 5
earlz 16:370b9e559f92 6 Redistribution and use in source and binary forms, with or without
earlz 16:370b9e559f92 7 modification, are permitted provided that the following conditions
earlz 16:370b9e559f92 8 are met:
earlz 16:370b9e559f92 9
earlz 16:370b9e559f92 10 1. Redistributions of source code must retain the above copyright
earlz 16:370b9e559f92 11 notice, this list of conditions and the following disclaimer.
earlz 16:370b9e559f92 12 2. Redistributions in binary form must reproduce the above copyright
earlz 16:370b9e559f92 13 notice, this list of conditions and the following disclaimer in the
earlz 16:370b9e559f92 14 documentation and/or other materials provided with the distribution.
earlz 16:370b9e559f92 15 3. The name of the author may not be used to endorse or promote products
earlz 16:370b9e559f92 16 derived from this software without specific prior written permission.
earlz 16:370b9e559f92 17
earlz 16:370b9e559f92 18 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
earlz 16:370b9e559f92 19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
earlz 16:370b9e559f92 20 AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
earlz 16:370b9e559f92 21 THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
earlz 16:370b9e559f92 22 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
earlz 16:370b9e559f92 23 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
earlz 16:370b9e559f92 24 OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
earlz 16:370b9e559f92 25 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
earlz 16:370b9e559f92 26 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
earlz 16:370b9e559f92 27 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
earlz 16:370b9e559f92 28
earlz 16:370b9e559f92 29 This file is part of the MbedConsole project
earlz 16:370b9e559f92 30 */
earlz 16:370b9e559f92 31
earlz 12:3ee3062cc11c 32 #include "mbedconsole.h"
earlz 12:3ee3062cc11c 33 #include "keyboard.h"
earlz 12:3ee3062cc11c 34
earlz 12:3ee3062cc11c 35 #define FONTHEIGHT 16
earlz 12:3ee3062cc11c 36 #define FONTWIDTH 8
earlz 12:3ee3062cc11c 37
earlz 13:442bd2fb4ea0 38 int console_x=0, console_y=(250/15);
earlz 12:3ee3062cc11c 39 int console_color=WHITE; //text color
earlz 12:3ee3062cc11c 40
earlz 12:3ee3062cc11c 41
earlz 12:3ee3062cc11c 42 void vsetcursor(int x, int y)
earlz 12:3ee3062cc11c 43 {
earlz 12:3ee3062cc11c 44 console_x=x;
earlz 12:3ee3062cc11c 45 console_y=y;
earlz 12:3ee3062cc11c 46 }
earlz 12:3ee3062cc11c 47
earlz 12:3ee3062cc11c 48 void vrawputc(char c)
earlz 12:3ee3062cc11c 49 {
earlz 12:3ee3062cc11c 50 //fuck that shitv
earlz 12:3ee3062cc11c 51 if(console_x>80)
earlz 12:3ee3062cc11c 52 {
earlz 12:3ee3062cc11c 53 return;
earlz 12:3ee3062cc11c 54 }
earlz 12:3ee3062cc11c 55 //shift left for fast multiply
earlz 12:3ee3062cc11c 56 vga_putchar(console_x<<3, console_y<<4, c, console_color);
earlz 12:3ee3062cc11c 57 }
earlz 12:3ee3062cc11c 58 void vputc(char c)
earlz 12:3ee3062cc11c 59 {
earlz 12:3ee3062cc11c 60 //shift left for fast multiply
earlz 12:3ee3062cc11c 61 if(console_x>=79)
earlz 12:3ee3062cc11c 62 {
earlz 12:3ee3062cc11c 63 console_x=0;
earlz 12:3ee3062cc11c 64 console_y++;
earlz 12:3ee3062cc11c 65 }
earlz 13:442bd2fb4ea0 66 if(console_y>=29)
earlz 12:3ee3062cc11c 67 {
earlz 12:3ee3062cc11c 68 console_y--;
earlz 12:3ee3062cc11c 69 vga_scroll();
earlz 12:3ee3062cc11c 70 }
earlz 12:3ee3062cc11c 71 switch(c){
earlz 12:3ee3062cc11c 72 case '\n':
earlz 12:3ee3062cc11c 73 case '\r':
earlz 12:3ee3062cc11c 74 console_y++;
earlz 12:3ee3062cc11c 75 console_x=0;
earlz 12:3ee3062cc11c 76 break;
earlz 12:3ee3062cc11c 77 case '\b':
earlz 12:3ee3062cc11c 78 vrawputc(' ');
earlz 12:3ee3062cc11c 79 if(console_x>0)
earlz 12:3ee3062cc11c 80 {
earlz 12:3ee3062cc11c 81 console_x--;
earlz 12:3ee3062cc11c 82 }
earlz 12:3ee3062cc11c 83 vrawputc(' ');
earlz 12:3ee3062cc11c 84 break;
earlz 12:3ee3062cc11c 85 case '\t':
earlz 12:3ee3062cc11c 86 for(int i=0;i<4;i++)
earlz 12:3ee3062cc11c 87 {
earlz 12:3ee3062cc11c 88 console_x++;
earlz 12:3ee3062cc11c 89 vrawputc(' ');
earlz 12:3ee3062cc11c 90 }
earlz 12:3ee3062cc11c 91 default:
earlz 12:3ee3062cc11c 92 vga_putchar(console_x<<3, console_y<<4, c, console_color);
earlz 12:3ee3062cc11c 93 console_x++;
earlz 12:3ee3062cc11c 94 }
earlz 12:3ee3062cc11c 95 }
earlz 12:3ee3062cc11c 96
earlz 12:3ee3062cc11c 97 void vputs(char *s){
earlz 12:3ee3062cc11c 98 while(*s!=0){
earlz 12:3ee3062cc11c 99 vputc(*s);
earlz 12:3ee3062cc11c 100 s++;
earlz 12:3ee3062cc11c 101 }
earlz 12:3ee3062cc11c 102 }
earlz 12:3ee3062cc11c 103
earlz 12:3ee3062cc11c 104 char vgetc()
earlz 12:3ee3062cc11c 105 {
earlz 12:3ee3062cc11c 106 char tmp=kbd_GetKey();
earlz 12:3ee3062cc11c 107 vputc(tmp);
earlz 12:3ee3062cc11c 108 return tmp;
earlz 12:3ee3062cc11c 109 }
earlz 12:3ee3062cc11c 110 int vgetsl(char *buf, int len)
earlz 12:3ee3062cc11c 111 {
earlz 12:3ee3062cc11c 112 int pos=0;
earlz 12:3ee3062cc11c 113 while(1){
earlz 12:3ee3062cc11c 114 buf[pos]=kbd_GetKey();
earlz 12:3ee3062cc11c 115 if(buf[pos]=='\r'){
earlz 12:3ee3062cc11c 116 buf[pos]='\n';
earlz 12:3ee3062cc11c 117 }
earlz 12:3ee3062cc11c 118
earlz 12:3ee3062cc11c 119 vputc(buf[pos]);
earlz 12:3ee3062cc11c 120 if(buf[pos]=='\b'){
earlz 12:3ee3062cc11c 121 buf[pos]=0;
earlz 12:3ee3062cc11c 122 if(pos>0){
earlz 12:3ee3062cc11c 123 pos--;
earlz 12:3ee3062cc11c 124 buf[pos--]=0;
earlz 12:3ee3062cc11c 125 }
earlz 12:3ee3062cc11c 126 }
earlz 12:3ee3062cc11c 127 if(pos>len-1){
earlz 12:3ee3062cc11c 128 break;
earlz 12:3ee3062cc11c 129 }
earlz 12:3ee3062cc11c 130 if(buf[pos]=='\n'){
earlz 12:3ee3062cc11c 131 buf[pos]=0;
earlz 12:3ee3062cc11c 132 return 1;
earlz 12:3ee3062cc11c 133 }
earlz 12:3ee3062cc11c 134 pos++;
earlz 12:3ee3062cc11c 135 }
earlz 12:3ee3062cc11c 136 return 0;
earlz 12:3ee3062cc11c 137 }
earlz 12:3ee3062cc11c 138
earlz 12:3ee3062cc11c 139
earlz 12:3ee3062cc11c 140
earlz 12:3ee3062cc11c 141 int strlcmp(const char *s1,const char *s2,size_t count){
earlz 12:3ee3062cc11c 142 int i=0;
earlz 12:3ee3062cc11c 143 while((s1[i]!=0) && (s2[i]!=0)){
earlz 12:3ee3062cc11c 144 if(s1[i]!=s2[i]){
earlz 12:3ee3062cc11c 145 return -1;
earlz 12:3ee3062cc11c 146 }
earlz 12:3ee3062cc11c 147 if(i>=count){
earlz 12:3ee3062cc11c 148 return -1;
earlz 12:3ee3062cc11c 149 }
earlz 12:3ee3062cc11c 150 i++;
earlz 12:3ee3062cc11c 151
earlz 12:3ee3062cc11c 152 }
earlz 12:3ee3062cc11c 153 if(s1[i]!=s2[i]){
earlz 12:3ee3062cc11c 154 return -1;
earlz 12:3ee3062cc11c 155 }
earlz 12:3ee3062cc11c 156 return 0;
earlz 12:3ee3062cc11c 157 }
earlz 12:3ee3062cc11c 158