243 lines
5.1 KiB
C
243 lines
5.1 KiB
C
#include "../common/common.h"
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#include <stdbool.h>
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typedef struct {
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char* buffer;
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int x;
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int y;
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uint32_t process;
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uint32_t stdin;
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uint32_t stdout;
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} procbuffer;
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void scrollBuffer(char* buf) {
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for (int y=0; y<21; y++)
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for (int x=0; x<38; x++)
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if (y != 20)
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buf[y*38+x] = buf[(y+1)*38+x];
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else
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buf[y*38+x] = ' ';
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}
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void writeToBuf(char c, procbuffer* buf) {
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switch (c) {
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case '\n':
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buf->x = 0;
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buf->y++;
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break;
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case '\b':
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if (buf->x > 0)
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buf->x--;
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else if (buf->y > 0) {
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buf->x = 37;
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buf->y--;
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}
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buf->buffer[buf->y*38+buf->x] = ' ';
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break;
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default:
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buf->buffer[buf->y*38+buf->x++] = c;
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}
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if (buf->x == 38) {
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buf->x = 0;
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buf->y++;
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}
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if (buf->y == 21) {
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buf->y--;
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scrollBuffer(buf->buffer);
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}
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}
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void writeStrToBuf(char* c, procbuffer* b) {
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char* s = c;
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while(*s)
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writeToBuf(*(s++), b);
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}
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void displayBuf(procbuffer* b, int dx, int dy) {
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char pset[9] = "\x1b[00;00H";
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for (int i=0; i<dy;i++) {
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pset[3]++;
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if (pset[3] == 0x3a) {
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pset[3] = 0x30;
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pset[2]++;
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}
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}
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for (int i=0; i<dx;i++) {
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pset[6]++;
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if (pset[6] == 0x3a) {
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pset[6] = 0x30;
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pset[5]++;
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}
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}
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for (int i=0; i<21; i++) {
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print(pset);
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write(38, 0, b->buffer+(38*i));
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pset[3]++;
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if (pset[3] == 0x3a) {
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pset[3] = 0x30;
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pset[2]++;
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}
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}
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}
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void setCurPos(int x, int y) {
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char pset[9] = "\x1b[00;00H";
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for (int i=0; i<y;i++) {
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pset[3]++;
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if (pset[3] == 0x3a) {
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pset[3] = 0x30;
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pset[2]++;
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}
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}
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for (int i=0; i<x;i++) {
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pset[6]++;
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if (pset[6] == 0x3a) {
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pset[6] = 0x30;
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pset[5]++;
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}
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}
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print(pset);
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}
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void readline(int count, char* buffer) {
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int index = 0;
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char c;
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while (index < count) {
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if (read(1, 1, &c)) {
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if (c == '\n')
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break;
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if (c == '\b') {
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if (index == 0)
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continue;
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else {
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index--;
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buffer[index] = 0;
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write(1, 0, &c);
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continue;
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}
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}
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buffer[index++] = c;
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write(1, 0, &c);
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}
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}
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}
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bool strcmp(char* a, char* b) {
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int index=0;
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while (a[index])
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if (a[index] == b[index])
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index++;
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else
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return false;
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return true;
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}
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bool strcmpcnt(int count, char* a, char* b) {
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int index=0;
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while (index < count)
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if (a[index] == b[index])
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index++;
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else
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return false;
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return true;
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}
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int main() {
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bindToKeyboard();
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char space = ' ';
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char plus = '+';
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print("\x1b[1;1H");
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for (int i=0; i < 1000; i++)
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write(1, 0, &space);
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print("\x1b[1;1H");
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char* mid = "+ ++ +";
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char* bottom = "+ +";
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for (int i=0; i<80;i++)
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write(1, 0, &plus);
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for (int i=0; i<21;i++)
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write(80, 0, mid);
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for (int i=0; i<80;i++)
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write(1, 0, &plus);
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write(80, 0, bottom);
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for (int i=0; i<80;i++)
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write(1, 0, &plus);
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uint32_t program = fopen("hello.bin");
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uint32_t p1 = fork(program);
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uint32_t p1out = bindStdout(p1);
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uint32_t p1in = bindStdin(p1);
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fclose(program);
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program = fopen("hello.bin");
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uint32_t p2 = fork(program);
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uint32_t p2out = bindStdout(p2);
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uint32_t p2in = bindStdin(p2);
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fclose(program);
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procbuffer b1 = {
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.buffer = localalloc(21 * 38),
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.x = 0,
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.y = 0,
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.process = p1,
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.stdin = p1in,
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.stdout = p1out
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};
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procbuffer b2 = {
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.buffer = localalloc(21 * 38),
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.x = 0,
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.y = 0,
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.process = p2,
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.stdin = p2in,
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.stdout = p2out
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};
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procbuffer* selectedBuf = &b1;
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writeStrToBuf("XoSH (Xnoe SHell) v0.0.1\nPress : to use commands.\n :help for help.\n", &b1);
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while (1) {
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char c;
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if (read(1, b1.stdout, &c))
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writeToBuf(c, &b1);
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if (read(1, b2.stdout, &c))
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writeToBuf(c, &b2);
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if (read(1, 1, &c)) {
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if (c == ':') {
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char buf[32] = {0};
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print("\x1b[24;2H");
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print(": ");
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print("\x1b[24;3H");
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readline(32, buf);
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if (strcmpcnt(6, buf, "switch")) {
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if (selectedBuf == &b1) {
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selectedBuf = &b2;
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} else {
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selectedBuf = &b1;
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}
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} else if (strcmpcnt(4, buf, "help")) {
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writeStrToBuf("\n--------\n", selectedBuf);
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writeStrToBuf(":help\n", selectedBuf);
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writeStrToBuf(" Displays this message.\n", selectedBuf);
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writeStrToBuf(":switch\n", selectedBuf);
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writeStrToBuf(" Switches which process you're using\n", selectedBuf);
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writeStrToBuf(":kill\n", selectedBuf);
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writeStrToBuf(" Kills the current process\n", selectedBuf);
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writeStrToBuf(":load <filename>\n", selectedBuf);
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writeStrToBuf(" Loads and executes the program <filename>\n", selectedBuf);
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writeStrToBuf("--------\n", selectedBuf);
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}
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} else {
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write(1, selectedBuf->stdin, &c);
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}
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}
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displayBuf(&b1, 2, 2);
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displayBuf(&b2, 42, 2);
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}
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} |