c.sdsp
Store doubleword to stack
This instruction is defined by:
Synopsis
Stores a 64-bit value in register rs2 to memory.
It computes an effective address by adding the zero-extended offset, scaled by 8,
to the stack pointer, x2.
It expands to sd rs2, offset(x2).
Decode Variables
Bits<9> imm = {$encoding[9:7], $encoding[12:10], 3'd0};
Bits<5> rs2 = $encoding[6:2];Execution
-
Pruned, XLEN == 64
-
Original
XReg virtual_address = X[2] + imm;
write_memory<64>(virtual_address, X[rs2], $encoding);if (implemented?(ExtensionName::C) && (CSR[misa].C == 1'b0)) {
raise(ExceptionCode::IllegalInstruction, mode(), $encoding);
}
XReg virtual_address = X[2] + imm;
write_memory<64>(virtual_address, X[rs2], $encoding);