2 ; Ullrich von Bassewitz, 05.08.1998
3 ; Christian Krueger, 11-Mar-2017, added 65SC02 optimization
5 ; CC65 runtime: sub ints reversed
8 .export tosrsuba0, tosrsubax
22 .if (.cpu .bitand CPU_ISET_65SC02)
30 sta tmp1 ; save lo byte
35 jmp addysp1 ; drop TOS, set condition codes