Dmitry:
Sorry, I was being lazy. Here is a test routine that demonstrates the
weirdness.
#define LVAL 8
void test() {
long a, b;
int c;
// Works
printf ("TEST1\r\n");
a = 0x12345678l;
b = a >> LVAL;
printf ("TEST: b = a >> %2d ---> 0x%08lx\r\n", LVAL, b);
// Doesn't work for LVAL=8,16+
printf ("TEST2\r\n");
b = 0x12345678l;
b >>= LVAL;
printf ("TEST: b >>= %2d ---> 0x%08lx\r\n", LVAL, b);
// Works
printf ("TEST3\r\n");
b = 0x12345678l;
c = LVAL;
b >>= c;
printf ("TEST: b >>= c ---> 0x%08lx\r\n", b);
}
What I got:
LVAL = 8
========
TEST1
TEST: b = a >> 8 ---> 0x00123456
TEST2
TEST: b >>= 8 ---> 0x00124c56
TEST3
TEST: b >>= c ---> 0x00123456
LVAL = 16
=========
TEST1
TEST: b = a >> 16 ---> 0x00001234
TEST2
TEST: b >>= 16 ---> 0x00000000
TEST3
TEST: b >>= c ---> 0x00001234
Gotta go... Any help will be appreciated.
Thanks,
-Paul
-----Original Message-----
From: Dmitry <[email protected]>
Date: Fri, 23 May 2003 22:06:38 +0400
Subject: Re: [Mspgcc-users] More shifting problems
diwil> constants are ints by default.
diwil> so, use sufix 'l' for them.
diwil> If you still got a problem, post sorces which cause a problem.
diwil> Form ones you posted, the shift operation should be eliminated.
diwil> ~d
diwil>
diwil>
