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/* Copyright (C) 1987- Leon Bottou
*
* This is free documentation; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* The GNU General Public License's references to "object code"
* and "executables" are to be interpreted as the output of any
* document formatting or typesetting system, including
* intermediate and printed output.
*
* This manual is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this manual. Otherwise check the web site
* of the Free Software Foundation at http://www.fsf.org.
*/
/*
CRASM: scode.c
sorties du scode
LYB 9/87
*/
#include "dcl.h"
unsigned long pc;
unsigned long codelen;
unsigned long rawstart;
int rawnumber;
int rawextended;
char raw[16];
extern int includelevel;
void
setpc(long unsigned int addr)
{
if ( addr != pc )
{ flushscoderaw();
rawstart=pc=addr;
rawnumber=0;
}
}
void
insert8(unsigned char x)
{
if ( ! (asmflags & F_ORG_GV) )
error ( "no org given");
if ( ! (asmflags & F_NOCODE) )
{ if ( scode == NULL )
{
scode = fopen ( scodename,"w" );
if ( scode == NULL )
fatal("can't open scode file");
rawextended = 0;
}
}
if ( asmflags & F_CODE_ON )
{ if ( scode != NULL )
{ if ( rawnumber >= 16 )
flushscoderaw();
raw[rawnumber++]=x;
}
codelen++;
outputbyte(x);
}
advance++;
pc++;
}
void
insert16(short unsigned int x)
{
if (asmflags & F_LOHI)
{ insert8(x);
insert8(x>>8);
}
else
{ insert8(x>>8);
insert8(x);
}
}
void
insert32(unsigned int x)
{
if (asmflags & F_LOHI)
{ insert16(x);
insert16(x>>16);
}
else
{ insert16(x>>16);
insert16(x);
}
}
static unsigned char checksum;
static void
scodebyte(unsigned char b)
{
checksum += b;
fputc( hexa[ (b>>4) & 0xf ] , scode );
fputc( hexa[ b & 0xf ] , scode );
if ( ferror(scode) )
fileerror(scodename);
}
void
closescodefile(void)
{
flushscoderaw();
if ( asmflags & F_CODE_HEX )
fputs(":00000001FF\n",scode);
else
fputs("S9030000FC\n",scode);
if ( scode )
fclose(scode);
}
void
flushscoderaw(void)
{
register int i;
if ( rawnumber )
{
if ( asmflags & F_CODE_HEX )
{
if ((rawextended ^ rawstart) & 0xffff0000)
{
fputs(":02000004",scode);
checksum = (unsigned char)(0xFF + 0x02 + 0x04);
scodebyte(rawstart>>24);
scodebyte(rawstart>>16);
scodebyte(~checksum);
fputc('\n',scode);
rawextended = rawstart;
}
fputc(':',scode);
checksum = 0xFF;
scodebyte(rawnumber);
scodebyte(rawstart>>8);
scodebyte(rawstart);
scodebyte(0x00);
}
else
{ fputc('S',scode);
checksum = 0;
if (rawstart & 0xff000000)
{
fputc('3',scode);
scodebyte(rawnumber+5);
scodebyte(rawstart>>24);
scodebyte(rawstart>>16);
}
else if (rawstart & 0xff0000)
{
fputc('2',scode);
scodebyte(rawnumber+4);
scodebyte(rawstart>>16);
}
else
{
fputc('1',scode);
scodebyte(rawnumber+3);
}
scodebyte(rawstart>>8);
scodebyte(rawstart);
}
for ( i=0; i<rawnumber; i++ )
scodebyte( raw[i] );
scodebyte ( ~ checksum );
fputc('\n',scode);
}
rawstart=pc;
rawnumber=0;
}
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