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CTAOS v2

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This commit is contained in:
Tiberiu Chibici
2021-09-14 18:30:00 +03:00
parent c90c6dc692
commit 7cb940e485
48 changed files with 2621 additions and 507 deletions
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122
kernel/shell/apps.h Normal file
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const char *apps_lst[] = {
"",
"reboot",
"osver",
"date",
"place",
"cls",
"memory"
};
int apps_count = 7;
void apps_osver()
{
puts("CTA OS v0.1");
puts("\n(c) CTA 2010.\n");
}
void apps_date()
{
puts("Today is ");
puts((char*)clock_weekdays[clock.weekday]);
puts(", "); putc((clock.day/10)+'0');
putc((clock.day%10)+'0');
puts(" "); puts((char*)clock_months[clock.month]);
puts(" "); putc((clock.century/10)+'0');
putc((clock.century%10)+'0');
putc((clock.year/10)+'0');
putc((clock.year%10)+'0');
putc('\n');
}
void apps_place()
{
puts("On your desk, if you didn't notice... \n");
}
void apps_clrscr()
{
clrscr();
}
void apps_memory(const int pn, const char* param[])
{
if (pn<3) {
puts ("Correct syntax: memory [start_address] [end_address] (in hex)\n");
return;
}
byte *start, *end;
byte l1 = strlen(param[1]), l2 = strlen(param[2]);
unsigned int a;
int i; byte *count;
a = 0;
for(i = 0; i < l1; i++) {
switch (param[1][i]) {
case 'a':
case 'A': a = a*16 + 10; break;
case 'b':
case 'B': a = a*16 + 11; break;
case 'c':
case 'C': a = a*16 + 12; break;
case 'd':
case 'D': a = a*16 + 13; break;
case 'e':
case 'E': a = a*16 + 14; break;
case 'f':
case 'F': a = a*16 + 15; break;
default: if (!(param[1][i]>='0' && param[1][i]<='9')) {
puts ((char*)param[1]); puts(" is not a valid hex address.\n");
return;
}
a = a*16 + (param[1][i] - '0');
break;
}
}
start = (byte *)a;
a = 0;
for(i = 0; i < l2; i++) {
switch (param[2][i]) {
case 'a':
case 'A': a = a*16 + 10; break;
case 'b':
case 'B': a = a*16 + 11; break;
case 'c':
case 'C': a = a*16 + 12; break;
case 'd':
case 'D': a = a*16 + 13; break;
case 'e':
case 'E': a = a*16 + 14; break;
case 'f':
case 'F': a = a*16 + 15; break;
default: if (!(param[2][i]>='0' && param[2][i]<='9')) {
puts ((char*)param[2]); puts(" is not a valid hex address.\n");
return;
}
a = a*16 + (param[2][i] - '0');
break;
}
}
end = (byte *)a;
while (start <= end) {
put_hex ((unsigned int) start); puts(": ");
for (count = start; count < start+16; count++) {
putc(hex[*count/16]); putc(hex[*count%16]);
putc(' ');
}
puts(" ");
for (count = start; count < start+16; count++)
putc(*count);
putc('\n');
start+=16;
}
}

81
kernel/shell/shell.c Normal file
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#include <conio.h>
#include "apps.h"
void get_str(char *str, int len)
{
kb_key alpha;
int i;
for (i = 0; i<len-1 ; i++) {
text_mode_cursor(cursor_x, cursor_y);
alpha = kb_getkey();
switch (alpha.character) {
case 0x00: --i; break; // Ignore null characters
case 0x7F: --i; break;
case '\b': // Backspace
if (i>0) { // Only backspace our string
if (--cursor_x < 0) { // Begin of row - 1 = End of previous row
cursor_x = 79; cursor_y--;
}
putc_pos(cursor_x, cursor_y, 0);
str[--i] = 0;
}
i--; break;
case '\n': str[i]=0; putc('\n'); return;
default: putc(alpha.character);
str[i] = alpha.character;
str[i+1] = 0;
break;
}
}
}
void shell()
{
char str[256];
char* param[16];
int i, len, params=0;
set_default_colors (0x07, 0x04);
clrscr();
for (;;) {
puts("\n] ");
get_str(str, 256);
len = strlen(str);
// Ignore spaces in front of command
i=0; params = 0;
while (str[i] == ' ') i++;
param[params] = str+i; params++; i++; // Parameter 0 = app itself
for (; i < len && params<16; i++) {
if (str[i] == ' ') str[i]=0;
if (str[i] != 0 && str[i-1]==0) {
param[params] = str+i; params++;
}
}
for (i = 0; strcmp(apps_lst[i], param[0])!=0 && i<apps_count; i++);
switch (i) {
case 0: puts("You must enter a command!\n"); break;
case 1: reboot();
case 2: apps_osver(); break;
case 3: apps_date(); break;
case 4: apps_place(); break;
case 5: apps_clrscr(); break;
case 6: apps_memory(params, (const char**)param); break;
default: puts("Invalid function: "); puts(param[0]);
putc('\n');
break;
}
}
}