From 5ba9a665c5364413743a8d756962a35c43722705 Mon Sep 17 00:00:00 2001
From: pavelyakov <pavelyakov@kolibrios.org>
Date: Sat, 17 Nov 2018 12:27:27 +0000
Subject: [PATCH] Brainfuck interpreter

git-svn-id: svn://kolibrios.org@7553 a494cfbc-eb01-0410-851d-a64ba20cac60
---
 programs/cmm/BrainFuck/brainfuck.c | 109 +++++++++++++++++++++++++++++
 programs/cmm/BrainFuck/compile.sh  |   5 ++
 2 files changed, 114 insertions(+)
 create mode 100644 programs/cmm/BrainFuck/brainfuck.c
 create mode 100755 programs/cmm/BrainFuck/compile.sh

diff --git a/programs/cmm/BrainFuck/brainfuck.c b/programs/cmm/BrainFuck/brainfuck.c
new file mode 100644
index 0000000000..1d66cbec5c
--- /dev/null
+++ b/programs/cmm/BrainFuck/brainfuck.c
@@ -0,0 +1,109 @@
+/*
+ * Console example in C--
+*/
+
+#define MEMSIZE 4096*10
+
+#include "../lib/obj/console.h"
+
+#define bufferSize 10000;
+#define memoryBrainfuck 30000
+#define memoryByteBF 1
+#define stackBrainFuck 4*1024
+
+dword buffer = 0;
+word bufferSymbol = 0;
+dword memory = 0;
+dword stack = 0;
+
+void evalBrainFuckCode(dword code)
+{
+	byte cmd = 0;
+	dword offsetMemory = 0;
+	dword countStack = 0;
+	dword countOffset = memoryBrainfuck / 2 / memoryByteBF;
+	offsetMemory = memory;
+	countStack = stack;
+	
+	// clear memory
+	EBX = memoryBrainfuck;
+	offsetMemory = memory;
+	WHILE(EBX)
+	{
+		EBX--;
+		DSBYTE[offsetMemory] = 0;
+		offsetMemory++;
+	}
+	//--------
+	
+	offsetMemory = memory + countOffset;
+	
+	con_printf stdcall ("Output BrainF*ck:\r\n");
+	
+	while(1)
+	{
+		cmd = DSBYTE[code];
+		switch(cmd)
+		{
+			case '+':
+				DSBYTE[offsetMemory]++;
+			break;
+			case '-':
+				DSBYTE[offsetMemory]--;
+			break;
+			case '[':
+				DSDWORD[countStack] = code;
+				countStack += 4;
+			break;
+			case ']':
+				IF (DSBYTE[offsetMemory]) code = DSDWORD[countStack - 4];
+				ELSE countStack -= 4;
+			break;
+			case ',':
+				con_getch stdcall();
+				DSBYTE[offsetMemory] = AL;
+			break;
+			case '.':
+				DSBYTE[#bufferSymbol] = DSBYTE[offsetMemory];
+				con_printf stdcall (#bufferSymbol);
+			break;
+			case '>':
+				offsetMemory++;
+			break;
+			case '<':
+				offsetMemory--;
+			break;
+			default:
+				con_printf stdcall ("\r\n");
+				//ExitProcess();
+				return;
+			break;
+		}
+		code++;
+	}
+}
+
+void main()
+{
+	dword brainFuckCode = 0;
+	
+	buffer = malloc(bufferSize);
+	memory = malloc(memoryBrainfuck);
+	stack = malloc(stackBrainFuck);
+	
+	load_dll(libConsole, #con_init, 0);
+	con_init stdcall (-1, -1, -1, -1, "BrainF*ck interpreter");
+	//con_set_flags stdcall (0x1F);
+	con_printf stdcall ("BrainF*ck interpreter v1.0\r\n");
+	loop()
+	{
+		con_printf stdcall ("\r\nEnter BrainF*ck code:\r\n");
+		//con_write_string stdcall ("\r\n", 2);
+		con_gets stdcall(buffer, bufferSize);
+		//con_printf stdcall (EAX);
+		evalBrainFuckCode(EAX);
+	}
+	con_exit stdcall (0);
+	ExitProcess();
+}
+
diff --git a/programs/cmm/BrainFuck/compile.sh b/programs/cmm/BrainFuck/compile.sh
new file mode 100755
index 0000000000..1be419bf24
--- /dev/null
+++ b/programs/cmm/BrainFuck/compile.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+for file in `find ./ -type f -name "*.c"`
+do
+   ./cmm $file;
+done
\ No newline at end of file