Changes

'''CPC Plus''' can use cartridges released for the '''GX4000''''''''', but specific software can be created using the extra features without the need of hardware (contrary as it was claimed by Amstrad in 1991). The extra features are not locked by a hardware mechanism but only by a special 17 bytes-lenght sequence send to the CRTC. So, it's possible for everyone to create his/her own software on the cpc plus, using the extra features available through a 16kb ASIC I/O page(See [[Programming ASIC]].) Except the extra-features, the 464 & 6218 Plus machines are almost fully compatible with the old CPC generation. Some minor differences are noticable in emulated components ([[8255|PPI]], [[CRTC]], [[Gate Array]][[Gate Array]]) and in the interrupt mechanism in vectorised mode.''