#if ROM_LAYOUT_STD || (ROM_LAYOUT_M65 && SEGMENT_KERNAL_0) #if CONFIG_IEC iec_wait_for_data_pull: lda CIA2_PRA // Check the highest bit, which is DATA IN, // (highest bit set = negative value) bmi iec_wait_for_data_pull rts #endif // CONFIG_IEC #endif // ROM layout