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@11:fede136943a9, 2012-09-28 (annotated)

Committer:
earlz
Date:
Fri Sep 28 04:03:54 2012 +0000
Revision:
11:fede136943a9
Parent:
4:b44c27404035
Child:
12:3ee3062cc11c
Finally have keyboard support, AND it plays nice with VGA

Who changed what in which revision?

UserRevisionLine numberNew contents of line
earlz 1:eb209f0468de 1 #include "mbedconsole.h"
earlz 1:eb209f0468de 2
earlz 1:eb209f0468de 3 #define FONTHEIGHT 16
earlz 1:eb209f0468de 4 #define FONTWIDTH 8
earlz 1:eb209f0468de 5
earlz 1:eb209f0468de 6 int console_x=0, console_y=0;
earlz 1:eb209f0468de 7 int console_color=WHITE; //text color
earlz 1:eb209f0468de 8
earlz 1:eb209f0468de 9
earlz 1:eb209f0468de 10 void vsetcursor(int x, int y)
earlz 1:eb209f0468de 11 {
earlz 1:eb209f0468de 12 console_x=x;
earlz 1:eb209f0468de 13 console_y=y;
earlz 1:eb209f0468de 14 }
earlz 1:eb209f0468de 15
earlz 1:eb209f0468de 16 void vrawputc(char c)
earlz 1:eb209f0468de 17 {
earlz 1:eb209f0468de 18 //fuck that shitv
earlz 1:eb209f0468de 19 if(console_x>80)
earlz 1:eb209f0468de 20 {
earlz 1:eb209f0468de 21 return;
earlz 1:eb209f0468de 22 }
earlz 1:eb209f0468de 23 //shift left for fast multiply
earlz 1:eb209f0468de 24 vga_putchar(console_x<<3, console_y<<4, c, console_color);
earlz 1:eb209f0468de 25 }
earlz 1:eb209f0468de 26 void vputc(char c)
earlz 1:eb209f0468de 27 {
earlz 1:eb209f0468de 28 //shift left for fast multiply
earlz 1:eb209f0468de 29 if(console_x>=79)
earlz 1:eb209f0468de 30 {
earlz 1:eb209f0468de 31 console_x=0;
earlz 1:eb209f0468de 32 console_y++;
earlz 1:eb209f0468de 33 }
earlz 1:eb209f0468de 34 if(console_y>=24)
earlz 1:eb209f0468de 35 {
earlz 1:eb209f0468de 36 console_y--;
earlz 1:eb209f0468de 37 vga_scroll();
earlz 1:eb209f0468de 38 }
earlz 1:eb209f0468de 39 switch(c){
earlz 1:eb209f0468de 40 case '\n':
earlz 1:eb209f0468de 41 case '\r':
earlz 1:eb209f0468de 42 console_y++;
earlz 1:eb209f0468de 43 console_x=0;
earlz 1:eb209f0468de 44 break;
earlz 1:eb209f0468de 45 case '\b':
earlz 1:eb209f0468de 46 vrawputc(' ');
earlz 1:eb209f0468de 47 if(console_x>0)
earlz 1:eb209f0468de 48 {
earlz 1:eb209f0468de 49 console_x--;
earlz 1:eb209f0468de 50 }
earlz 1:eb209f0468de 51 vrawputc(' ');
earlz 1:eb209f0468de 52 break;
earlz 1:eb209f0468de 53 case '\t':
earlz 1:eb209f0468de 54 for(int i=0;i<4;i++)
earlz 1:eb209f0468de 55 {
earlz 1:eb209f0468de 56 console_x++;
earlz 1:eb209f0468de 57 vrawputc(' ');
earlz 1:eb209f0468de 58 }
earlz 1:eb209f0468de 59 default:
earlz 1:eb209f0468de 60 vga_putchar(console_x<<3, console_y<<4, c, console_color);
earlz 1:eb209f0468de 61 console_x++;
earlz 1:eb209f0468de 62 }
earlz 1:eb209f0468de 63 }
earlz 1:eb209f0468de 64
earlz 1:eb209f0468de 65 void vputs(char *s){
earlz 1:eb209f0468de 66 while(*s!=0){
earlz 1:eb209f0468de 67 vputc(*s);
earlz 1:eb209f0468de 68 s++;
earlz 1:eb209f0468de 69 }
earlz 1:eb209f0468de 70 }
earlz 1:eb209f0468de 71
earlz 1:eb209f0468de 72 char vgetc()
earlz 1:eb209f0468de 73 {
earlz 11:fede136943a9 74 char tmp=kbd_GetKey();
earlz 11:fede136943a9 75 vputc(tmp);
earlz 11:fede136943a9 76 return tmp;
earlz 1:eb209f0468de 77 }
earlz 1:eb209f0468de 78 int vgetsl(char *buf, int len)
earlz 1:eb209f0468de 79 {
earlz 1:eb209f0468de 80 int pos=0;
earlz 1:eb209f0468de 81 while(1){
earlz 11:fede136943a9 82 buf[pos]=kbd_GetKey();
earlz 11:fede136943a9 83 if(buf[pos]=='\r'){
earlz 11:fede136943a9 84 buf[pos]='\n';
earlz 11:fede136943a9 85 }
earlz 11:fede136943a9 86
earlz 11:fede136943a9 87 vputc(buf[pos]);
earlz 11:fede136943a9 88 if(buf[pos]=='\b'){
earlz 11:fede136943a9 89 buf[pos]=0;
earlz 11:fede136943a9 90 if(pos>0){
earlz 11:fede136943a9 91 pos--;
earlz 11:fede136943a9 92 buf[pos--]=0;
earlz 1:eb209f0468de 93 }
earlz 11:fede136943a9 94 }
earlz 11:fede136943a9 95 if(pos>len-1){
earlz 11:fede136943a9 96 break;
earlz 1:eb209f0468de 97 }
earlz 11:fede136943a9 98 if(buf[pos]=='\n'){
earlz 11:fede136943a9 99 buf[pos]=0;
earlz 11:fede136943a9 100 return 1;
earlz 11:fede136943a9 101 }
earlz 11:fede136943a9 102 pos++;
earlz 1:eb209f0468de 103 }
earlz 1:eb209f0468de 104 return 0;
earlz 1:eb209f0468de 105 }
earlz 1:eb209f0468de 106
earlz 1:eb209f0468de 107
earlz 1:eb209f0468de 108
earlz 1:eb209f0468de 109 int strlcmp(const char *s1,const char *s2,size_t count){
earlz 4:b44c27404035 110 int i=0;
earlz 4:b44c27404035 111 while((s1[i]!=0) && (s2[i]!=0)){
earlz 4:b44c27404035 112 if(s1[i]!=s2[i]){
earlz 4:b44c27404035 113 return -1;
earlz 4:b44c27404035 114 }
earlz 4:b44c27404035 115 if(i>=count){
earlz 4:b44c27404035 116 return -1;
earlz 4:b44c27404035 117 }
earlz 4:b44c27404035 118 i++;
earlz 4:b44c27404035 119
earlz 4:b44c27404035 120 }
earlz 4:b44c27404035 121 if(s1[i]!=s2[i]){
earlz 4:b44c27404035 122 return -1;
earlz 4:b44c27404035 123 }
earlz 4:b44c27404035 124 return 0;
earlz 1:eb209f0468de 125 }
earlz 1:eb209f0468de 126