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ADC

Add with Carry adds two register values and the Carry flag value, and writes the result to the destination register.

Add with Carry adds two register values and the Carry flag value, and writes the result to the destination register.

313029282726252423222120191817161514131211109876543210
sf0011010000Rm000000RnRd
opS

32-bit (sf == 0)

ADC <Wd>, <Wn>, <Wm>

64-bit (sf == 1)

ADC <Xd>, <Xn>, <Xm>

integer d = UInt(Rd); integer n = UInt(Rn); integer m = UInt(Rm); integer datasize = if sf == '1' then 64 else 32; boolean sub_op = (op == '1'); boolean setflags = (S == '1');

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

bits(datasize) result; bits(datasize) operand1 = X[n]; bits(datasize) operand2 = X[m]; bits(4) nzcv; if sub_op then operand2 = NOT(operand2); (result, nzcv) = AddWithCarry(operand1, operand2, PSTATE.C); if setflags then PSTATE.<N,Z,C,V> = nzcv; X[d] = result;

Operational information

If PSTATE.DIT is 1:


Internal version only: isa v32.13v32.12, AdvSIMD v29.05v29.04, pseudocode v2020-12v2020-09_xml, sve v2020-12v2020-09_rc3 ; Build timestamp: 2020-12-16T142020-11-18T17:1723

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