set(erc_sources apple2.c apple2.bank.c apple2.dbuf.c apple2.dd.c apple2.draw.c apple2.kb.c apple2.mem.c apple2.pc.c log.c mos6502.c mos6502.addr.c mos6502.arith.c mos6502.bits.c mos6502.branch.c mos6502.dis.c mos6502.exec.c mos6502.loadstor.c mos6502.stat.c objstore.c option.c vm_area.c vm_bitfont.c vm_screen.c vm_segment.c )