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In reply to imj:

Castle's thinking behind the current thinness of the HAL is set out quite clearly in this document: [link]

This document fails to support your idea of the HAL as a "PCI interface", being mostly concerned with functionality formerly tied to IOMD. The real PCI interface in RISC OS 5 is elsewhere, as I'm sure you know. Note also the sentence beginning "The bulk of device driver implementation remains in RISC OS modules". Clearly it was not designed as "a whole HAL for the OS", and with good reason.

In short, the engineers behind RISC OS 5 have clearly put a lot of thought into the design of the HAL and I suspect your criticism of it to be founded more upon your low opinion of Castle than anything else.

 is a RISC OS Userthesnark on 15/7/04 5:31PM
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