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}
I'll add some more comments for v2.
r~
