Signed Maximum (immediate) determines the signed maximum of the source register value and immediate, and writes the result to the destination register.
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
sf | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | imm8 | Rn | Rd | |||||||||||||||
op | S | opc |
if !IsFeatureImplemented(FEAT_CSSC) then UNDEFINED; integer d = UInt(Rd); integer n = UInt(Rn); constant integer datasize = 32 << UInt(sf); integer imm = SInt(imm8);
<Wd> |
Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field. |
<Wn> |
Is the 32-bit name of the general-purpose source register, encoded in the "Rn" field. |
<simm> |
Is a signed immediate, in the range -128 to 127, encoded in the "imm8" field. |
<Xd> |
Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field. |
<Xn> |
Is the 64-bit name of the general-purpose source register, encoded in the "Rn" field. |
bits(datasize) operand1 = X[n, datasize]; integer result = Max(SInt(operand1), imm); X[d, datasize] = result<datasize-1:0>;
If PSTATE.DIT is 1:
Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45
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