ADD — add registers
add rd, rs1, rs2
Computes rd = rs1 + rs2. Available in RV32I and RV64I. Overflow wraps modulo XLEN; it does not trap and no carry/overflow flags are produced.
add a0, a1, a2 # a0 = a1 + a2
x86 connection: closest to lea dst, [src1 + src2] when you need flag-neutral addition. Unlike two-operand x86 add, neither source must be overwritten.