diff options
Diffstat (limited to 'src/include/ipxe/bigint.h')
| -rw-r--r-- | src/include/ipxe/bigint.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/include/ipxe/bigint.h b/src/include/ipxe/bigint.h index 3dc344dff..efe156596 100644 --- a/src/include/ipxe/bigint.h +++ b/src/include/ipxe/bigint.h @@ -208,13 +208,15 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); * @v multiplicand Big integer to be multiplied * @v multiplier Big integer to be multiplied * @v result Big integer to hold result + * @v carry Big integer to hold temporary carry space */ -#define bigint_multiply( multiplicand, multiplier, result ) do { \ +#define bigint_multiply( multiplicand, multiplier, result, carry ) do { \ unsigned int multiplicand_size = bigint_size (multiplicand); \ unsigned int multiplier_size = bigint_size (multiplier); \ bigint_multiply_raw ( (multiplicand)->element, \ multiplicand_size, (multiplier)->element, \ - multiplier_size, (result)->element ); \ + multiplier_size, (result)->element, \ + (carry)->element ); \ } while ( 0 ) /** @@ -245,7 +247,10 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); unsigned int size = bigint_size (modulus); \ sizeof ( struct { \ bigint_t ( size * 2 ) temp_result; \ - bigint_t ( size * 2 ) temp_modulus; \ + union { \ + bigint_t ( size * 2 ) temp_modulus; \ + bigint_t ( size * 2 ) temp_carry; \ + }; \ } ); } ) /** @@ -311,11 +316,16 @@ void bigint_shrink_raw ( const bigint_element_t *source0, unsigned int dest_size ); void bigint_swap_raw ( bigint_element_t *first0, bigint_element_t *second0, unsigned int size, int swap ); +void bigint_multiply_one ( const bigint_element_t multiplicand, + const bigint_element_t multiplier, + bigint_element_t *result, + bigint_element_t *carry ); void bigint_multiply_raw ( const bigint_element_t *multiplicand0, unsigned int multiplicand_size, const bigint_element_t *multiplier0, unsigned int multiplier_size, - bigint_element_t *result0 ); + bigint_element_t *result0, + bigint_element_t *carry0 ); void bigint_mod_multiply_raw ( const bigint_element_t *multiplicand0, const bigint_element_t *multiplier0, const bigint_element_t *modulus0, |