log in | register | forums
Show:
Go:
Forums
Username:

Password:

User accounts
Register new account
Forgot password
Forum stats
List of members
Search the forums

Advanced search
Recent discussions
- Homemade 6502 computer (Gen:2)
- Wakefield 2017 Show Report (News:)
- Wakefield 2017 show in pIctures (News:)
- Wakefield Acorn & RISC OS Show, 22nd April 2017 (News:4)
- Chris Grandson tells ROUGO...er browser and other ports (News:)
- Drag'N'Drop brings you a new selection of fonts (News:)
- Acorn 80MB Conner data recovery via PI? (Gen:4)
- South West Show in Pictures (News:1)
- Little Yellow Moon (Site:5)
- RISC OS Interviews - Anthony Vaughan Bartram (News:)
Latest postings RSS Feeds
RSS 2.0 | 1.0 | 0.9
Atom 0.3
Misc RDF | CDF
Site Search
 
Article archives
Acorn Arcade forums: Games: Pesky Muskrats crash
 
  Pesky Muskrats crash
  sirbod (17:51 13/7/2014)
 
Jon Abbott Message #123289, posted by sirbod at 17:51, 13/7/2014
Member
Posts: 563
I've noticed this game tries to write to the hardware vectors, which I'm certain is a bug.

Any idea what the first part of this code is supposed to do? Going by the PRM, it's reading the 3rd byte of the Winchester size, but I'm fairly certain it's meant to read something else:

MOV R0, #&A1
MOV R1, #&BF
SWI XOS_Byte
ADR R1,&8F14
STR R2,[R2,#1]
STR R2,[R2,#2]

MOV R0,#&15
SWI XOS_Word
MOV R0,#&100
SWI XExS_MusicFade
  ^[ Log in to reply ]
 

Acorn Arcade forums: Games: Pesky Muskrats crash