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ADCS

Add with carry, setting flags

This instruction adds two register values and the Carry flag value, and writes the result to the destination register. It updates the condition flags based on the result.

313029282726252423222120191817161514131211109876543210
sf0111010000Rm000000RnRd
opS

32-bit encoding

(sf == 0)

ADCS <Wd>, <Wn>, <Wm>

64-bit encoding

(sf == 1)

ADCS <Xd>, <Xn>, <Xm>

Decode (all encodings)

constant integer d = UInt(Rd); constant integer n = UInt(Rn); constant integer m = UInt(Rm); constant integer datasize = 32 << UInt(sf);

Assembler Symbols

<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 first general-purpose source register, encoded in the "Rn" field.

<Wm>

Is the 32-bit name of the second general-purpose source register, encoded in the "Rm" 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 first general-purpose source register, encoded in the "Rn" field.

<Xm>

Is the 64-bit name of the second general-purpose source register, encoded in the "Rm" field.

Operation

constant bits(datasize) operand1 = X[n, datasize]; constant bits(datasize) operand2 = X[m, datasize]; bits(datasize) result; bits(4) nzcv; (result, nzcv) = AddWithCarry(operand1, operand2, PSTATE.C); X[d, datasize] = result; PSTATE.<N,Z,C,V> = nzcv;

Operational information

This instruction is a data-independent-time instruction as described in About PSTATE.DIT.

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