![]() ![]() ![]() Instead it must periodically examine the ZX81 display file and produce an equivalent output The Spectrum 128 cannot utilise the ZX81 video driver ROM routinesĪs it does not have the hardware capability required. The ZX81 produces its display using a combination of software and hardware. The second display file thus leaving the 16384 - 32767 memory area free for the ZX81 ROM to use. Two display files - the usual one at 16384 and a second one that can be paged in at 49152. The 16K/48K Spectrum has its display file fixed at 16384 and so this would clash. The ZX81 expects the 16K memory area 16384 - 32767 to be available for its display file, system variables and program area but The patches reside in the 8192 - 16383 memory area which is not available on a standard ZX81 system. The cartridge works by taking the standard ZX81 ROM and patching the display, cassette and printer routines. The emulator is included with permission on the ZX Spectrum Next (issue 1). Successfully (including many high resolution games). It is possible to load ZX81 games directly from cassette and the vast majority of titles will run The cartridge contains a modified ZX81 ROM which means that the ZX Spectrum 128 is actually running as a ZX81, not This 16K ROM cartridge can only be used with a ZX Spectrum 128 and makes it run as a ZX81. This range of cartridges works on the following PCBs and with the following models of Spectrum:Ĭlick here to jump to the downloads section. ![]()
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