aes64ks1i :: RISC-V ISA Manual

Assembly format

aes64ks1i rd, rs1, rnum

This instruction must have data-independent timing when extension Zkt is enabled.

This instruction implements the rotation, SubBytes and Round Constant addition steps of the AES block cipher Key Schedule.

rnum must be in the range 0x0..0xA. The values 0xB..0xF are reserved.

Bits<4> rnum = $encoding[23:20];
Bits<5> rs1 = $encoding[19:15];
Bits<5> rd = $encoding[11:7];

M	HS	U	VS	VU
Always	Always	Always	Always	Always

M

HS

U

VS

VU

Always