ori
Or immediate
Or an immediate to the value in xs1, and store the result in xd
| This instruction must have data-independent timing when extension Zkt is enabled. |
Decode Variables
Bits<12> imm = $encoding[31:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> xd = $encoding[11:7];Execution
-
IDL
-
Sail
if (implemented?(ExtensionName::Zicbop)) {
if (xd == 0) {
if (imm[4:0] == 0) {
Bits<12> offset = {imm[11:5], xd};
prefetch_instruction(offset);
} else if (imm[4:0] == 1) {
Bits<12> offset = {imm[11:5], xd};
prefetch_read(offset);
} else if (imm[4:0] == 3) {
Bits<12> offset = {imm[11:5], xd};
prefetch_write(offset);
}
}
}
X[xd] = X[xs1] | $signed(imm);{
let xs1_val = X(xs1);
let immext : xlenbits = sign_extend(imm);
let result : xlenbits = match op {
RISCV_ADDI => xs1_val + immext,
RISCV_SLTI => zero_extend(bool_to_bits(xs1_val <_s immext)),
RISCV_SLTIU => zero_extend(bool_to_bits(xs1_val <_u immext)),
RISCV_ANDI => xs1_val & immext,
RISCV_ORI => xs1_val | immext,
RISCV_XORI => xs1_val ^ immext
};
X(xd) = result;
RETIRE_SUCCESS
}