From: Jacob Lifshay Date: Sun, 14 Jul 2019 06:41:46 +0000 (-0700) Subject: add proposed frsqrt instruction encoding table X-Git-Tag: ls180-24jan2020~849 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=07c771aa522785a492dfcaf4dcb33b35635528f8;p=ieee754fpu.git add proposed frsqrt instruction encoding table --- diff --git a/doc/frsqrt.rst b/doc/frsqrt.rst new file mode 100644 index 00000000..c2c07fb5 --- /dev/null +++ b/doc/frsqrt.rst @@ -0,0 +1,14 @@ +Proposed frsqrt Instruction Encoding +==================================== + ++-----------+---------+-------+-----+--------+----+---------+ +| Mnemonic | funct7 | rs2 | rs1 | funct3 | rd | opcode | ++===========+=========+=======+=====+========+====+=========+ +| frsqrt.s | 0111100 | 00000 | rs1 | rm | rd | 1010011 | ++-----------+---------+-------+-----+--------+----+---------+ +| frsqrt.d | 0111101 | 00000 | rs1 | rm | rd | 1010011 | ++-----------+---------+-------+-----+--------+----+---------+ +| frsqrt.q | 0111110 | 00000 | rs1 | rm | rd | 1010011 | ++-----------+---------+-------+-----+--------+----+---------+ +| frsqrt.h | 0111111 | 00000 | rs1 | rm | rd | 1010011 | ++-----------+---------+-------+-----+--------+----+---------+