c.sw
Store word
This instruction is defined by:
Synopsis
Stores a 32-bit value in register rs2 to memory.
It computes an effective address by adding the zero-extended offset, scaled by 4,
to the base address in register rs1.
It expands to sw rs2, offset(rs1).
Decode Variables
Bits<7> imm = {$encoding[5], $encoding[12:10], $encoding[6], 2'd0};
Bits<3> rs2 = $encoding[4:2];
Bits<3> rs1 = $encoding[9:7];Execution
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Pruned, XLEN == 64
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Original
if ((%%LINK%csr_field;misa.C;CSR[misa].C%% == 1'b0)) {
%%LINK%func;raise;raise%%(ExceptionCode::IllegalInstruction, %%LINK%func;mode;mode%%(), $encoding);
}
XReg virtual_address = X[%%LINK%func;creg2reg;creg2reg%%(rs1)] + imm;
%%LINK%func;write_memory;write_memory%%<32>(virtual_address, X[%%LINK%func;creg2reg;creg2reg%%(rs2)][31:0], $encoding);if (%%LINK%func;implemented?;implemented?%%(ExtensionName::C) && (%%LINK%csr_field;misa.C;CSR[misa].C%% == 1'b0)) {
%%LINK%func;raise;raise%%(ExceptionCode::IllegalInstruction, %%LINK%func;mode;mode%%(), $encoding);
}
XReg virtual_address = X[%%LINK%func;creg2reg;creg2reg%%(rs1)] + imm;
%%LINK%func;write_memory;write_memory%%<32>(virtual_address, X[%%LINK%func;creg2reg;creg2reg%%(rs2)][31:0], $encoding);