Help about compile with st20cc.exe

[SatX]

Hi to all,
I have question about compile with st20cc.exe
How can compile one source code with st20cc.exe???
Example:

/* Includes --------------------------------------------------------------- */
#include "emu.h"
#include "crypto.h"
#include <string.h>

//---------------------------------------------------------------------------

int conax_ecm (byte *ecm, byte *dw, byte *emu_buf) {
	int keyIdx;
	byte *e,*n;

	if(!emu_buf[0x20A]) return false; // send to card
	keyIdx=ecm[6];
	if(keyIdx==emu_buf[0xEF4]) {
		e=emu_buf+0xEF6;
		n=emu_buf+0xF76;
	}
	else if(keyIdx==emu_buf[0xEF5]) {
		e=emu_buf+0xF36;
		n=emu_buf+0xFB6;
	}
	else return false; // key not found in emu
	return ( conax_decrypt (ecm+7,(int)ecm[4]-2,e,n,dw) );
}

int conax_decrypt (byte *buf, byte len, byte *e1, byte *n1, byte *plainwords) {
	int i, j, num, index, nDigits, eDigits;
	const byte hash[] = {0x05, 0x00, 0x05};

	NN_DIGIT N1[MAX_NN_DIGITS], E1[MAX_NN_DIGITS], ecm[MAX_NN_DIGITS], decm[MAX_NN_DIGITS];

	NN_Decode(N1,MAX_NN_DIGITS,n1, 64);
	NN_Decode(E1,MAX_NN_DIGITS,e1, 64);
	nDigits = NN_Digits (N1, MAX_NN_DIGITS);
	eDigits = NN_Digits (E1, MAX_NN_DIGITS);

	// begin RSA decrypt
	if (buf[-2]==0x63) num = 1;
	else num = 0;
	for (i=len;i>0;)  {
		index = i-64;  
		if(index < 0) index = 0;

		NN_Decode(ecm,MAX_NN_DIGITS,buf+index,64);
		R_memset((POINTER)decm,0,sizeof(decm));
		NN_ModExp(decm,ecm,E1,eDigits,N1,nDigits);
		NN_Encode(buf+index,64-num,decm,MAX_NN_DIGITS);
		if(num) {
			len=len-num;
			for(j=index+64-num; j < len; j++) buf[j]=buf[j+num];
		}
		if (i>120){
			if (i%60) i-=i%60;
			else i-=64;
		}
		else i-=64;
	}
	if(memcmp(hash, buf+2, 3) == 0 &&  memcmp(buf+5, buf+len-5, 5) == 0) {
		/* Signature correct, parse decrypted packet */
		ParseECM(buf+10,len-10,plainwords);
		return true;
	} else return false;	// Signature incorrect

}

void ParseECM (byte *buf, byte len, byte *plainwords) {
  int i;
  for(i=0; i<len; ) {
    byte nano = buf[i++];
    byte nanolen = buf[i++];

    switch(nano) {
    case 0x80:
    case 0x82:
      ParseECM(buf+i+3, nanolen-3, plainwords);
      break;
    case 0x81:
      ParseECM(buf+i+2, nanolen-2, plainwords);
      break;
    case 0x30:
      if(plainwords) {
				memcpy(plainwords, buf+i+10, 8);
				memcpy(plainwords+8, buf+i+2, 8);
			}
      break;
    default:
      break;
    }
    i += nanolen;
  }
}

Please help me,

[SatX]

I performed this But I cannot compile it

 st20cc: ST20
ST20 Toolchain driver ...

Usage: st20cc <filename> {-option}
Options include: 
F                 run only C++ preprocessor and C++ compiler
I <directory>     Specify include directory
NS                do not include default startup file to linker
O0                disable optimization
S                 produce assembly language
T <scriptfile>    specify linker indirect file
c                 suppress linking
g                 comprehensive debugging data
o <filename>      specify output file
off <type>        format <type> of the output file to be produced
p <procedure>     specify command procedure to execute
v                 verbose mode
w                 suppress all compiler warnings

A complete option list is provided by the help option
Default options may be placed in the environment variable ST20CCARG

How can compile C Source code to Binary file(.bin)???

[Banfa]

The command line you want is

st20cc <filename>.c

However the code you have provided is not a complete program so you can not link to a bin.

[SatX]

The command line you want is

st20cc <filename>.c

However the code you have provided is not a complete program so you can not link to a bin.

Ok thanks But Can you explain or instruction compile source code to .bin with st20cc.exe?!?!?

I need to help you,

[Banfa]

My memory of using the ST20 Toolset is that we used st20link.exe to link all the objects created with st20cc.exe (using the -c, compile only switch) to create a binary image.

The dedicated linker program has many options and I think you will need to look them up in the documentation (which is available in the compiler program tree).

[SatX]

My memory of using the ST20 Toolset is that we used st20link.exe to link all the objects created with st20cc.exe (using the -c, compile only switch) to create a binary image.

The dedicated linker program has many options and I think you will need to look them up in the documentation (which is available in the compiler program tree).

I have ST20 Toolset v1.8.1 & v1.9.6 But I have problem in use of st20link.exe to link all the objects created with st20cc.exe who switch C source to .bin

Can you guide me to use of st20link.exe to link all the objects created with st20cc.exe and compile C source to .bin please???

I amnot an expert

[ALSFelix]

Hi.

Can anyone help me to aquire the latest versions of these softwares:

# SGS-Thomson Transputer ANSI C Toolset
# SGS-Thomson Transputer Occam 2.1 Toolset
# SGS-Thomson C++ for ST20 and T4/T8 Transputers

I have some but they are very old and i can't find new ones.
I've asked for help from SGS-Thomson but all thet tell me is to contact some company called ARROW but dont tell me how and i can't find them...

Can anyone help me?

Thank you.

[Banfa]

About 2 minutes with Google got me http://www.arrowne.com/arrow_worldwide/uk/main.html who seam to meet the 2 criteria of being called Arrow and being an ST-Microelectronic supplier.