C.FSD

Compressed Float Store Double

C.FSD rs2', offset(rs1')

Stores a double-precision float to memory (Compressed).

Encoding

Binary Layout

?

31:16

101

15:13

c_uimm8hi

12:10

rs1_p

9:7

c_uimm8lo

6:5

rs2_p

4:2

00

1:0

 

Format CS

Opcode 0x0000A000

Extension C

Operands

• rs2'
  Source (f8-f15)
• rs1'
  Base (x8-x15)
• offset
  Offset

Example

C.FSD rs2', 0(a0)

Related

More in C

Reference

View in RISC-V Unprivileged ISA Specification ↗ RISC-V ISA Manual

Description

Stores a double-precision FP value from fd′ to memory.

Operation

M[R[rs1'] + offset][63:0] = F[rs2'];