Chris Dew

109 posts

Chris Dew

Chris Dew

@chrisdew

Evesham, United Kingdom Beigetreten Haziran 2008
136 Folgt31 Follower
Chris Dew
Chris Dew@chrisdew·
@DoctorWkt I've made 1-2" square ATMEGA PCBs before. There are trade-offs in the design. Many simple RISC V instructions take 40+ microcode instructions (cycles) to execute, as this is an 8-bit datapath executing 32-bit instructions. I'll put some of my scraps of design up on the internet.
English
0
0
1
0
Chris Dew
Chris Dew@chrisdew·
@DoctorWkt Inspired by your Crazy Small CPU, I designed an 11 chip (7400-series + RAM/ROM) CPU which should execute RISCV assembly code (when assembled into non-standard instruction format). Would you recommend designing a PCB over using Veroboard (which is what I have currently laid out)?
English
0
0
0
0
Chris Dew
Chris Dew@chrisdew·
@DoctorWkt What is/are FOIL? Are they (a*b)%16, A*b, a*B and (a*b)/16?
English
1
0
0
0
Chris Dew
Chris Dew@chrisdew·
@DoctorWkt P.P.S. Your diagram has on /8 going into LowALU. This is asymmetrical, whereas A * B is commutative. If both A and B were /8s into LowALU, it could work, but then again the HighALU would be pointless.
English
0
0
0
0
Chris Dew
Chris Dew@chrisdew·
@DoctorWkt As the HighALU needs all eight bits of each register, the LowALUToHighALU path is probably pointless. P.S. I know you've already found a larger EEPROM, but the problem interested me.
English
1
0
0
0
Chris Dew retweetet
Alastair
Alastair@StockBoardAsset·
The neighborhood said he was crazy.....
Alastair tweet media
English
62
1.4K
2.5K
0
Chris Dew
Chris Dew@chrisdew·
If next line is one more indented: "{". If next line is similarly indented: ";". If next line is less indented: ";" ++ "}" * num_unindents. twitter.com/UdellGames/sta…
English
0
0
0
0
Chris Dew retweetet
Prof Colin Talbot
Prof Colin Talbot@colinrtalbot·
The important point here is UK could always have better controlled borders but chose not to and then blamed the EU.
Prof Colin Talbot tweet media
English
139
4.4K
4.4K
0
Chris Dew retweetet
@Nick_Craver@infosec.exchange
@[email protected]@Nick_Craver·
Encryption logic.
@Nick_Craver@infosec.exchange tweet media
English
4
114
183
0
Chris Dew
Chris Dew@chrisdew·
@Eurostar Thanks for the information, I'll need to book as soon as the tickets become available.
English
0
0
0
0
Chris Dew
Chris Dew@chrisdew·
@Eurostar Thanks, but are UK school holiday fares substantially higher? Can I see last years prices?
English
1
0
0
0
Chris Dew
Chris Dew@chrisdew·
@Eurostar Your website does not yet allow me to book travel in August. Are UK school holiday fares substantially higher?
English
1
0
0
0
Chris Dew
Chris Dew@chrisdew·
@UPbridge_gap So that's a "No" then, rather than "Yes"? 2560x1440 aka 1440p60, 1440 > 1080. Thanks for responding.
English
0
0
0
0