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- This is 65Host, version 0.97/0.13.
-
- Documentation on how to use 65Host can be found in Edition 2 of the
- Archimedes User Guide.
-
- The following remarks should be noted about this version of 65Host and its
- documentation.
-
- 65Host provides a limited emulation of a BBC Model B Microcomputer only.
- Access to the Archimedes printer port and serial port is not supported, and
- there is no emulation of the Model B sound chip or disc controller. As a
- consequence, copy-protected programs or those which attempt direct access to
- DFS directory sectors are unlikely to operate correctly.
-
- The User VIA chip is only accessible to the emulator when an I/O Expansion
- Card is present. If a program uses the User VIA timers, it will not operate
- correctly without an I/O Expansion Card being fitted.
-
- Versions of programs which run on the BBC Master 128 or Master Compact may
- use facilities not available on the BBC Model B, and so may not work under
- this emulation.
-
- The *-commands described in the User Guide (*ListROMs, *SwapROMs, *CacheROM,
- *LinkROM, *EmulateBBC) are RISC OS *-commands provided by the emulator
- module. *Quit, on the other hand, is provided within the emulated BBC
- Microcomputer.
-
- In addition the following *-commands are provided within the emulation:
-
- *Reset [<number>]
- Performs a 6502 reset, like CALL !-4.
- If number=1, a power-on reset is performed.
-
- *Go [<address>]
- Branch the emulated 6502 to the specified address.
-
- *OS
- Provide a *-prompt loop within the 6502 emulator.
-
- In the emulator the BREAK key emulates the BREAK key on the emulated
- computer, but the RESET key resets Archimedes.
-
- *Tape is provided (in case an application issues this command), but cannot
- load or save files.
-
- Econet OSWORDs are not supported.
-