diff options
| author | Michael Brown <mcb30@ipxe.org> | 2024-01-19 16:35:02 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2024-01-19 16:40:11 +0000 |
| commit | 908174ec7e49d845c8b52a07a3db32534eade37d (patch) | |
| tree | 629f597d76156716b292a1b96c30672d999d260c /src/tests | |
| parent | bac13ba1f658a1e742b9ceb958e670086affebe7 (diff) | |
| download | ipxe-908174ec7e49d845c8b52a07a3db32534eade37d.tar.gz | |
[loong64] Replace broken big integer arithmetic implementations
The slightly incomprehensible LoongArch64 implementation for
bigint_subtract() is observed to produce incorrect results for some
input values.
Replace the suspicious LoongArch64 implementations of bigint_add(),
bigint_subtract(), bigint_rol() and bigint_ror(), and add a test case
for a subtraction that was producing an incorrect result with the
previous implementation.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/tests')
| -rw-r--r-- | src/tests/bigint_test.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/tests/bigint_test.c b/src/tests/bigint_test.c index f09d7c76a..76aca1059 100644 --- a/src/tests/bigint_test.c +++ b/src/tests/bigint_test.c @@ -714,6 +714,15 @@ static void bigint_test_exec ( void ) { bigint_subtract_ok ( BIGINT ( 0xbb, 0x77, 0x32, 0x5a ), BIGINT ( 0x5a, 0xd5, 0xfe, 0x28 ), BIGINT ( 0x9f, 0x5e, 0xcb, 0xce ) ); + bigint_subtract_ok ( BIGINT ( 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff ), + BIGINT ( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x2a ), + BIGINT ( 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b ) ); bigint_subtract_ok ( BIGINT ( 0x7b, 0xaa, 0x16, 0xcf, 0x15, 0x87, 0xe0, 0x4f, 0x2c, 0xa3, 0xec, 0x2f, 0x46, 0xfb, 0x83, 0xc6, 0xe0, 0xee, |