kolibrios/programs/cmm/examples/math.c
Kirill Lipatov (Leency) 7f1f263ff5 cmm: cleanup
git-svn-id: svn://kolibrios.org@7854 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-05-01 20:57:17 +00:00

139 lines
2.2 KiB
C

/*
* Author Pavel Iakovlev
*/
#define MEMSIZE 4096*10
#include "../lib/io.h"
#include "../lib/obj/console.h"
#include "../lib/array.h"
byte initConsole = 0;
Dictionary functions = {0};
Dictionary variables = {0};
#define bufferSize 10000;
#define memoryBrainfuck 30000*4
#define memoryByteBF 1
#define stackBrainFuck 4*1024
dword buffer = 0;
word bufferSymbol = 0;
dword memory = 0;
dword stack = 0;
dword code = 0;
byte tempBuffer[100] = {0};
void consoleInit()
{
IF(!initConsole)
{
load_dll(libConsole, #con_init, 0);
con_init stdcall (-1, -1, -1, -1, "Math interpreter");
initConsole = 0xFF;
}
}
:dword getInteger()
{
dword i = 0;
byte z = 0;
if (DSBYTE[code] == ' ') code++;
if (DSBYTE[code] == '-')
{
z = 0xFF;
code++;
}
if (DSBYTE[code] >= '0') && (DSBYTE[code] <= '9')
{
while (DSBYTE[code] >= '0') && (DSBYTE[code] <= '9')
{
i *= 10;
i += DSBYTE[code] - '0';
code++;
}
if (z) return -i;
return i;
}
return 0;
}
:dword mathEval(dword i)
{
while (DSBYTE[code] == ' ') code++;
code++;
switch (DSBYTE[code-1])
{
case '+':
return i + mathEval(getInteger());
break;
case '-':
return i - mathEval(getInteger());
break;
case '/':
return i / mathEval(getInteger());
break;
case '*':
return i * mathEval(getInteger());
break;
case '(':
return mathEval(mathEval(getInteger()));
break;
case ')':
return i;
break;
case 0:
return 0;
break;
}
return i;
}
:dword evalMath()
{
return mathEval(getInteger());
}
void main()
{
dword brainFuckCode = 0;
word maxLoop = 1000;
buffer = malloc(bufferSize);
memory = malloc(memoryBrainfuck);
stack = malloc(stackBrainFuck);
IF(DSBYTE[I_Param])
{
IF(io.read(I_Param))
{
code = EAX;
evalMath();
}
}
else
{
consoleInit();
con_printf stdcall ("Math interpreter v1.0");
while(maxLoop)
{
con_printf stdcall ("\r\n\r\n: ");
con_gets stdcall(buffer, bufferSize);
code = EAX;
//code = txt;
con_printf stdcall ("Result: ");
evalMath();
con_printf stdcall (itoa(EAX));
maxLoop--;
}
}
IF(initConsole) con_exit stdcall (0);
ExitProcess();
}