vmsltu.vx
No synopsis available.
This instruction is defined by:
-
V, version >= 0
This instruction is included in the following profiles:
-
RVA22S64 (Optional)
-
RVA22U64 (Optional)
Decode Variables
Bits<1> vm = $encoding[25];
Bits<5> vs2 = $encoding[24:20];
Bits<5> rs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];
Execution
-
IDL
-
Sail
{
let SEW = get_sew();
let LMUL_pow = get_lmul_pow();
let num_elem = get_num_elem(LMUL_pow, SEW);
if illegal_vd_unmasked() then { handle_illegal(); return RETIRE_FAIL };
let 'n = num_elem;
let 'm = SEW;
let vm_val : vector('n, dec, bool) = read_vmask(num_elem, vm, 0b00000);
let rs1_val : bits('m) = get_scalar(rs1, SEW);
let vs2_val : vector('n, dec, bits('m)) = read_vreg(num_elem, SEW, LMUL_pow, vs2);
let vd_val : vector('n, dec, bool) = read_vmask(num_elem, 0b0, vd);
result : vector('n, dec, bool) = undefined;
mask : vector('n, dec, bool) = undefined;
(result, mask) = init_masked_result_cmp(num_elem, SEW, LMUL_pow, vd_val, vm_val);
foreach (i from 0 to (num_elem - 1)) {
if mask[i] then {
let res : bool = match funct6 {
VXCMP_VMSEQ => vs2_val[i] == rs1_val,
VXCMP_VMSNE => vs2_val[i] != rs1_val,
VXCMP_VMSLTU => unsigned(vs2_val[i]) < unsigned(rs1_val),
VXCMP_VMSLT => signed(vs2_val[i]) < signed(rs1_val),
VXCMP_VMSLEU => unsigned(vs2_val[i]) <= unsigned(rs1_val),
VXCMP_VMSLE => signed(vs2_val[i]) <= signed(rs1_val),
VXCMP_VMSGTU => unsigned(vs2_val[i]) > unsigned(rs1_val),
VXCMP_VMSGT => signed(vs2_val[i]) > signed(rs1_val)
};
result[i] = res
}
};
write_vmask(num_elem, vd, result);
vstart = zeros();
RETIRE_SUCCESS
}