https://sourceware.org/bugzilla/show_bug.cgi?id=25344
--- Comment #1 from Sergey Belyashov <sergey.belyashov at gmail dot com> --- You are right. 0x40, 0x49, 0x52 and 0x5b are ez80 opcode prefixes which changes memory model of next instruction. 0x40 + 0x40 is impossible opcode. I will fix it soon (within a week). You may try fix it. Move lines placed at end of suffix() (opcodes/z80.c): buf_in->n_used += buf.n_used; buf_in->n_fetch += buf.n_fetch; before: if (*p == '.') /* suffix already present */ It should fix error. -- You are receiving this mail because: You are on the CC list for the bug.