On 20.10.20 17:11, Richard Henderson wrote: > On 10/20/20 7:17 AM, David Hildenbrand wrote: >>> + case CC_OP_ADDU: >> >> Can you give me a hint how we're converting the carry into a borrow? >> >> Can we apply something similar to compute_carry()? >> >>> + tcg_gen_subi_i64(cc_src, cc_src, 1); > > Right here: subtract one. > > carry = {1,0} -> borrow = {0,-1}
Ok, so it's really that simple :) Thanks! -- Thanks, David / dhildenb