Top "Extended-precision" questions

Assembly multiplication of 16-bit x 32-bit => 48-bit

Assume I want to multiply a large number by another (maybe small) number in assembly. The big number (multiplicand) is …

assembly x86-16 bigint extended-precision
Does gcc support 128-bit int on amd64?

Does gcc support 128-bit int on amd64? How to define it? How to use scanf/printf to read/write it?

c gcc 128-bit extended-precision
Is there a 256-bit integer type?

OS: Linux (Debian 10) CC: GCC 8.3 CPU: i7-5775C There is a unsigned __int128/__int128 in GCC, but is there …

c gcc x86-64 bigint extended-precision