decode_and_fetch_byte
srcval = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
*destreg = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
destval = decode_and_fetch_byte(emu);
*destreg = decode_and_fetch_byte(emu);
*destreg = decode_and_fetch_byte(emu);
*destreg = (int32_t)(int8_t)decode_and_fetch_byte(emu);
*destreg = (int16_t)(int8_t)decode_and_fetch_byte(emu);
static uint8_t decode_and_fetch_byte(struct x86emu *);