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[libgcc] Provide __divmoddi4() 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown 2016-05-04 19:13:31 +01:00
parent a5885fbc19
commit 67f539fa80
4 changed files with 28 additions and 31 deletions
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18
src/libgcc/__divdi3.c
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@ -6,21 +6,5 @@
__libgcc int64_t __divdi3(int64_t num, int64_t den)
{
int minus = 0;
int64_t v;
if ( num < 0 ) {
num = -num;
minus = 1;
}
if ( den < 0 ) {
den = -den;
minus ^= 1;
}
v = __udivmoddi4(num, den, NULL);
if ( minus )
v = -v;
return v;
return __divmoddi4(num, den, NULL);
}

25
src/libgcc/__divmoddi4.c Normal file
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@ -0,0 +1,25 @@
#include "libgcc.h"
__libgcc int64_t __divmoddi4(int64_t num, int64_t den, int64 *rem_p)
{
int minus = 0;
int64_t v;
if ( num < 0 ) {
num = -num;
minus = 1;
}
if ( den < 0 ) {
den = -den;
minus ^= 1;
}
v = __udivmoddi4(num, den, (uint64_t *)rem_p);
if ( minus ) {
v = -v;
if ( rem_p )
*rem_p = -(*rem_p);
}
return v;
}

15
src/libgcc/__moddi3.c
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@ -6,21 +6,8 @@
__libgcc int64_t __moddi3(int64_t num, int64_t den)
{
int minus = 0;
int64_t v;
if ( num < 0 ) {
num = -num;
minus = 1;
}
if ( den < 0 ) {
den = -den;
minus ^= 1;
}
(void) __udivmoddi4(num, den, (uint64_t *)&v);
if ( minus )
v = -v;
(void) __divmoddi4(num, den, &v);
return v;
}

1
src/libgcc/libgcc.h
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@ -8,6 +8,7 @@ extern __libgcc uint64_t __udivmoddi4 ( uint64_t num, uint64_t den,
uint64_t *rem );
extern __libgcc uint64_t __udivdi3 (uint64_t num, uint64_t den );
extern __libgcc uint64_t __umoddi3 ( uint64_t num, uint64_t den );
extern __libgcc int64_t __divmoddi4 ( int64_t num, int64_t den, int64_t *rem );
extern __libgcc int64_t __divdi3 ( int64_t num, int64_t den );
extern __libgcc int64_t __moddi3 ( int64_t num, int64_t den );