blob: a2ded048521aee4f730f848ecdb6d58e1142bc20 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// See LICENSE.SoftFloat for license details.
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
struct uint192
softfloat_sub192(
uint64_t a128,
uint64_t a64,
uint64_t a0,
uint64_t b128,
uint64_t b64,
uint64_t b0
)
{
struct uint192 z;
unsigned int borrow64, borrow128;
z.v0 = a0 - b0;
borrow64 = ( a0 < b0 );
z.v64 = a64 - b64;
borrow128 = ( a64 < b64 );
z.v128 = a128 - b128;
borrow128 += ( z.v64 < borrow64 );
z.v64 -= borrow64;
z.v128 -= borrow128;
return z;
}
|