You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.3 KiB
67 lines
1.3 KiB
/*
|
|
* Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
|
|
* Universitaet Berlin. See the accompanying file "COPYRIGHT" for
|
|
* details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
|
|
*/
|
|
|
|
/*$Header: /tmp_amd/presto/export/kbs/jutta/src/gsm/RCS/sweet.c,v 1.2 1996/07/02 10:15:53 jutta Exp $*/
|
|
|
|
/* Generate code to unpack a bit array from name:#bits description */
|
|
|
|
#include <stdio.h>
|
|
#include "taste.h"
|
|
#include "proto.h"
|
|
|
|
void write_code P2((s_spex, n_spex), struct spex * s_spex, int n_spex)
|
|
{
|
|
struct spex * sp = s_spex;
|
|
int bits = 8;
|
|
int vars;
|
|
|
|
if (!n_spex) return;
|
|
|
|
vars = sp->varsize;
|
|
|
|
while (n_spex) {
|
|
|
|
if (vars == sp->varsize) {
|
|
printf("\t%s = ", sp->var);
|
|
} else printf("\t%s |= ", sp->var);
|
|
|
|
if (vars == bits) {
|
|
|
|
if (bits == 8) printf( "*c++;\n" );
|
|
else printf( "*c++ & 0x%lX;\n",
|
|
~(0xfffffffe << (bits - 1)) );
|
|
|
|
if (!-- n_spex) break;
|
|
sp++;
|
|
vars = sp->varsize;
|
|
bits = 8;
|
|
|
|
} else if (vars < bits) {
|
|
|
|
printf( "(*c >> %d) & 0x%lX;\n",
|
|
bits - vars,
|
|
~(0xfffffffe << (vars - 1)));
|
|
|
|
bits -= vars;
|
|
if (!--n_spex) break;
|
|
sp++;
|
|
vars = sp->varsize;
|
|
|
|
} else {
|
|
/* vars > bits. We're eating lower-all of c,
|
|
* but we must shift it.
|
|
*/
|
|
printf( "(*c++ & 0x%X) << %d;\n",
|
|
~(0xfffffffe << (bits - 1)),
|
|
vars - bits );
|
|
|
|
vars -= bits;
|
|
bits = 8;
|
|
}
|
|
}
|
|
}
|
|
|