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-rw-r--r--userspace/brain.brain1
-rw-r--r--userspace/brainfuck.c89
-rw-r--r--userspace/foolshell.c20
-rw-r--r--userspace/piper.c31
4 files changed, 70 insertions, 71 deletions
diff --git a/userspace/brain.brain b/userspace/brain.brain
new file mode 100644
index 0000000..cf7d005
--- /dev/null
+++ b/userspace/brain.brain
@@ -0,0 +1 @@
+++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.X
diff --git a/userspace/brainfuck.c b/userspace/brainfuck.c
index a1d5d53..eda0556 100644
--- a/userspace/brainfuck.c
+++ b/userspace/brainfuck.c
@@ -1,12 +1,4 @@
-// taken from: http://it-ride.blogspot.com/2009/11/brainfuck-interpreter.html
-
-/* comment
- * TODO
- * You have a bug. You don't check for EOF while looking for square brackets.
- */
-
/*
-
A brainfuck intepreter written in C, complete with error checking so you
don't hurt yourself while, uh, brainfucking. Nothing really special about
the implementation and it is probably very poor performance-wise.
@@ -14,77 +6,64 @@
Author: Felix Oghină
License: (brain)fuck licenses!
+
*/
+// taken from: http://it-ride.blogspot.com/2009/11/brainfuck-interpreter.html
+// and adapted for FoolOs by Miguel
+//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// by brainfuck standards (doesn't that sound funny?), the data pointer has
// 3,000 bytes at its disposal, but I hate hard-coding such stuff.
+
// FOOLOS: decreased to 3000 (from 30.000)
#define DATA_SIZE 3000
-void usage() {
- puts(
- "Usage: brainfuck FILE\n"
- "If FILE is ommited or is '-', standard input is read"
- );
+void usage(char *progname)
+{
+ printf("Usage: %s [FILE]\n",progname);
}
int main(int argc, char **argv)
{
+ puts("\n\nbrainfuck: Welcome to the BRAINFUCK INTERPRETER by Felix Oghina");
+ puts("brainfuck: Licensed under the (brain)fuck licenses!");
+ puts("brainfuck: Adapted & Compiled for FoolOS by Miguel");
// used by the bf program
unsigned char *dataptr = malloc(sizeof(char) * DATA_SIZE);
// position of the data pointer
unsigned int datapos = 0;
+
// input file
FILE *input;
+
// level - deepness of brackets
// i - uh, you need explanation for this one?
unsigned int level, i;
+
// we will read chars from the input into r
unsigned char r;
-
- /* uncommented by FOOLOS
- // determine input
- if (argc == 2) {
- if (strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "-h") == 0) {
- usage();
- return EXIT_SUCCESS;
- }
- else {
- input = fopen(argv[1], "r");
- if (input == NULL) {
- puts("Error opening input file");
- return EXIT_FAILURE;
- }
- }
- }
- else {
- usage();
+ // check argument count
+ if(argc!=2)
+ {
+ usage(argv[0]);
return EXIT_FAILURE;
}
- */
-
- // added by FOOLOS
- input=fopen("input.txt","r");
- char *buf=malloc(256);
- puts("\n\nbrainfuck: Welcome to the BRAINFUCK INTERPRETER by Felix Oghina");
- puts("brainfuck: Licensed under the (brain)fuck licenses!");
- puts("brainfuck: Adapted & Compiled for FoolOS");
-// printf("brainfuck: dataptr: 0x%08X\n",dataptr);
-// printf("brainfuck: dataptr2: 0x%08X\n",buf);
- rewind(input);
- fgets(buf,255,input);
-// printf("\nbrainfuck: loaded programm: %s\n\n",buf);
- fseek(input, 0, SEEK_SET);
-
+ // open brainfuck source
+ input = fopen(argv[1], "r");
+ if (input == NULL)
+ {
+ puts("Error opening input file");
+ return EXIT_FAILURE;
+ }
// zero the data pointer
for (i=0; i < DATA_SIZE; i++) {
@@ -92,17 +71,18 @@ int main(int argc, char **argv)
}
// start interpreting
+ while (1) {
- while (!feof(input)) {
r = (unsigned char) fgetc(input);
-// printf("%c",r);
+
switch(r) {
+ case 'X':
+ puts("END!");
+ return 0;
case '>':
if (datapos < DATA_SIZE - 1) datapos++;
else {
puts("brainfuck error: pointer overflow");
- // replace with foolshell.
- _execve(15,0,0);
return EXIT_FAILURE;
}
break;
@@ -110,8 +90,6 @@ int main(int argc, char **argv)
if (datapos > 0) datapos--;
else {
puts("brainfuck error: pointer underflow");
- // replace with foolshell.
- _execve(15,0,0);
return EXIT_FAILURE;
}
break;
@@ -141,7 +119,8 @@ int main(int argc, char **argv)
if (dataptr[datapos] != 0) {
level = 1;
while (level != 0) {
- fseek(input, -2, SEEK_CUR);
+ //fseek(input, -2, SEEK_CUR);
+ _lseek(3,-2,SEEK_CUR);
r = (unsigned char) fgetc(input);
if (r == ']') level ++;
else if (r == '[') level --;
@@ -150,8 +129,6 @@ int main(int argc, char **argv)
break;
}
}
- // replace with foolshell.
- _execve(15,0,0);
- return EXIT_SUCCESS;
+ return EXIT_SUCCESS;
}
diff --git a/userspace/foolshell.c b/userspace/foolshell.c
index 6877adb..0012592 100644
--- a/userspace/foolshell.c
+++ b/userspace/foolshell.c
@@ -17,17 +17,17 @@ void hello()
puts(
"\033c"
- "\033[36m"
+// "\033[36m"
- " ______ __ ____ _____ \n"
- " / ____/___ ____ / / / __ \\/ ___/ \n"
- " / /_ / __ \\/ __ \\/ / / / / /\\__ \\ \n"
- " / __/ / /_/ / /_/ / / / /_/ /___/ / \n"
- " /_/ \\____/\\____/_/ \\____//____/ \n"
- " \n"
-
- "\033[37;44m"
- " \n"
+// " ______ __ ____ _____ \n"
+// " / ____/___ ____ / / / __ \\/ ___/ \n"
+// " / /_ / __ \\/ __ \\/ / / / / /\\__ \\ \n"
+// " / __/ / /_/ / /_/ / / / /_/ /___/ / \n"
+// " /_/ \\____/\\____/_/ \\____//____/ \n"
+// " \n"
+
+// "\033[37;44m"
+// " \n"
" Welcome to FoolShell v0.12 (Compiled on " __DATE__ " at " __TIME__")\n"
" ------------------------------------------------------------------\n\n"
diff --git a/userspace/piper.c b/userspace/piper.c
index 2272f96..73b9516 100644
--- a/userspace/piper.c
+++ b/userspace/piper.c
@@ -1,21 +1,42 @@
#include <stdio.h>
int main()
{
- int pid=_fork();
+ setvbuf(stdout,NULL,_IONBF,0);
+ /*
FILE *f=fopen("~testpipe","rw");
- setvbuf(f,NULL,_IONBF,0);
+ int pid=_fork();
if(pid==0)
{
char buf[2];
- fread(f,buf,1,1);
+ fread(buf,1,1,f);
printf("[%c]\n",buf[0]);
+ while(1);
+ }
+
+ else
+ {
+ char buf[]="666";
+ fwrite(buf,1,1,f);
+ printf("written\n");
+ while(1);
}
+ */
+ int f=_open("~testpipe","RW");
+ int pid=_fork();
+ if(pid==0)
+ {
+ char buf[2];
+ while(_read(f,buf,1))printf("%c",buf[0]);
+ }
+
else
{
- char buf="666";
- fwrite(f,buf,1,1);
+ char buf[]="666 the number of the beast";
+ _write(f,buf,27);
printf("written\n");
}
+
+
}
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