c.ld
Load double
This instruction is defined by:
Synopsis
Loads a 64-bit value from memory into register rd.
It computes an effective address by adding the zero-extended offset, scaled by 8,
to the base address in register rs1.
It expands to ld rd, offset(rs1).
Decode Variables
Bits<8> imm = {$encoding[6:5], $encoding[12:10], 3'd0};
Bits<3> rd = $encoding[4:2];
Bits<3> rs1 = $encoding[9:7];Execution
-
Pruned, XLEN == 64
-
Original
XReg virtual_address = X[rs1] + imm;
X[rd] = sext(read_memory<64>(virtual_address, $encoding), 64);if (implemented?(ExtensionName::C) && (CSR[misa].C == 1'b0)) {
raise(ExceptionCode::IllegalInstruction, mode(), $encoding);
}
XReg virtual_address = X[rs1] + imm;
X[rd] = sext(read_memory<64>(virtual_address, $encoding), 64);