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???
08/31/04 07:53
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 		 #76652 - RE: Microprocesor emulator?
Responding to: ???'s previous message
I guess in a 33MHZ/1clock derivative... I can't imagine any of 6502 instruction taking more than 30 '51 ASM instructions. Sure there are interrupts, SFRs etc, that seem CPU-intensive but that's just matter of writing the code in a "smart way".

List of 177 messages in thread
TopicAuthorDate
Atari 400/800 implementation with 8052            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      Sorry...            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
   RE: Atari 400/800 implementation with 80            01/01/70 00:00      
   RE: Atari 400/800 implementation with 80            01/01/70 00:00      
   Microprocesor emulator?            01/01/70 00:00      
      RE: Microprocesor emulator?            01/01/70 00:00      
         RE: Microprocesor emulator?            01/01/70 00:00      
         RE: Microprocesor emulator?            01/01/70 00:00      
            6502 emulation            01/01/70 00:00      
               RE: 6502 emulation            01/01/70 00:00      
                  RE: 6502 emulation            01/01/70 00:00      
         RE: Microprocesor emulator?            01/01/70 00:00      
            RE: Microprocesor emulator?            01/01/70 00:00      
               RE: Microprocesor emulator?            01/01/70 00:00      
               RE: Microprocesor emulator?            01/01/70 00:00      
                  RE: Microprocesor emulator?            01/01/70 00:00      
                  RE: Microprocesor emulator?            01/01/70 00:00      
                     RE: Microprocesor emulator?            01/01/70 00:00      
                        RE: Microprocesor emulator?            01/01/70 00:00      
      RE: Microprocesor emulator?            01/01/70 00:00      
         RE: Microprocesor emulator?            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      RE: Atari 400/800 implementation with 80            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
   Video output with 8052?            01/01/70 00:00      
      VGA?            01/01/70 00:00      
      RE: Video output with 8052?            01/01/70 00:00      
         RE: Video output with 8052?            01/01/70 00:00      
         RE: Video output with 8052?            01/01/70 00:00      
            RE: Video output with 8052?            01/01/70 00:00      
            RE: Video output with 8052?            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      RE: Atari 400/800 implementation with 80            01/01/70 00:00      
         Do we really need 6502 emulation?            01/01/70 00:00      
            RE: Do we really need 6502 emulation?            01/01/70 00:00      
               RE: Do we really need 6502 emulation?            01/01/70 00:00      
                  I'm game!            01/01/70 00:00      
                     RE: I'm game!            01/01/70 00:00      
                        RE: I'm game!            01/01/70 00:00      
                           RE: I'm game!            01/01/70 00:00      
                              RE: I\'m game!            01/01/70 00:00      
                                 RE: I\'m game!            01/01/70 00:00      
   8052-based video or off-chip solution            01/01/70 00:00      
      RE: 8052-based video or off-chip solutio            01/01/70 00:00      
      RE: 8052-based video or off-chip solution            01/01/70 00:00      
         RE: 8052-based video or off-chip solution            01/01/70 00:00      
         RE: 8052-based video or off-chip solution            01/01/70 00:00      
      My My...Where is the OLD spirit?            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      LCD?            01/01/70 00:00      
         RE: LCD?            01/01/70 00:00      
            RE: LCD motiv?            01/01/70 00:00      
   Revisiting video & emulation            01/01/70 00:00      
      RE: Revisiting video & emulation            01/01/70 00:00      
         RE: Revisiting video & emulation            01/01/70 00:00      
            RE: Revisiting video & emulation            01/01/70 00:00      
            RE: Revisiting video & emulation            01/01/70 00:00      
               RE: Revisiting video & emulation            01/01/70 00:00      
                  RE: Revisiting video & emulation            01/01/70 00:00      
                  RE: Revisiting video & emulation            01/01/70 00:00      
      RE: Revisiting video & emulation            01/01/70 00:00      
         RE: Revisiting video & emulation            01/01/70 00:00      
            RE: Revisiting video & emulation            01/01/70 00:00      
               RE: Revisiting video & emulation            01/01/70 00:00      
                  RE: Revisiting video & emulation            01/01/70 00:00      
                     RE: Revisiting video & emulation            01/01/70 00:00      
                        RE: Revisiting video & emulation            01/01/70 00:00      
                           RE: Revisiting video & emulation            01/01/70 00:00      
                              Phillip implements 8052 video            01/01/70 00:00      
                                 RE: Phillip implements 8052 video            01/01/70 00:00      
                                    Phillip video user page            01/01/70 00:00      
                                       RE: Phillip video user page            01/01/70 00:00      
                                          Silabs as video chip            01/01/70 00:00      
                                             RE: Silabs as video chip            01/01/70 00:00      
                                       RE: Phillip video user page            01/01/70 00:00      
                                          RE: Phillip video user page            01/01/70 00:00      
                                             RE: Phillip video user page            01/01/70 00:00      
                              RE: Revisiting video & emulation            01/01/70 00:00      
   WHY?            01/01/70 00:00      
      RE: WHY?            01/01/70 00:00      
      None of the above            01/01/70 00:00      
   Programmable logic again            01/01/70 00:00      
   Defining the project & new ideas            01/01/70 00:00      
      RE: Defining the project & new ideas            01/01/70 00:00      
      RE: Defining the project & new ideas            01/01/70 00:00      
         RE: Defining the project & new ideas            01/01/70 00:00      
            RE: Defining the project & new ideas            01/01/70 00:00      
               RE: Defining the project & new ideas            01/01/70 00:00      
      RE: Defining the project & new ideas            01/01/70 00:00      
         RE: Defining the project & new ideas            01/01/70 00:00      
            RE: Defining the project & new ideas            01/01/70 00:00      
               RE: Defining the project & new ideas            01/01/70 00:00      
                  RE: Defining the project & new ideas            01/01/70 00:00      
                     RE: Efficiency            01/01/70 00:00      
                        RE: Efficiency            01/01/70 00:00      
                           RE: Efficiency            01/01/70 00:00      
                              RE: Efficiency            01/01/70 00:00      
                                 RE: Purpose of OS/Relocatable code            01/01/70 00:00      
                                    RE: Purpose of OS/Relocatable code            01/01/70 00:00      
                                       RE: Purpose of OS/Relocatable code            01/01/70 00:00      
                                          RE: Purpose of OS/Relocatable code            01/01/70 00:00      
                     RE: Defining the project & new ideas            01/01/70 00:00      
                        RE: Defining the project & new ideas            01/01/70 00:00      
                     RE: Defining the project & new ideas            01/01/70 00:00      
   Take a look            01/01/70 00:00      
   Starting specifications?            01/01/70 00:00      
      RE: Starting specifications?            01/01/70 00:00      
         I2C vs. parallel bus            01/01/70 00:00      
      RE: Starting specifications?            01/01/70 00:00      
         RE: Serial vs. parallel internal bus            01/01/70 00:00      
            RE: Serial vs. parallel internal bus            01/01/70 00:00      
      Then parallel..            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
      Re: Architecture questions            01/01/70 00:00      
      RE: Atari 400/800 implementation with 80            01/01/70 00:00      
         RE: Atari 400/800 implementation with 80            01/01/70 00:00      
            RE: Atari 400/800 implementation with 80            01/01/70 00:00      
               RE: Atari 400/800 implementation with 80            01/01/70 00:00      
                  RE: Atari 400/800 implementation with 80            01/01/70 00:00      
   Proposal: Internal Data Bus            01/01/70 00:00      
      RE: Proposal: Internal Data Bus            01/01/70 00:00      
         RE: Proposal: Internal Data Bus            01/01/70 00:00      
            RE: Command/Data line            01/01/70 00:00      
               RE: Command/Data line            01/01/70 00:00      
                  RE: Command/Data line            01/01/70 00:00      
                     RE: just recalled another            01/01/70 00:00      
                        RE: just recalled another            01/01/70 00:00      
                     RE: Alternative bus strategies            01/01/70 00:00      
         RE: Proposal: Internal Data Bus            01/01/70 00:00      
      RE: Proposal: Internal Data Bus            01/01/70 00:00      
         RE: Proposal: Internal Data Bus            01/01/70 00:00      
            RE: Proposal: Internal Data Bus            01/01/70 00:00      
               RE: Proposal: Internal Data Bus            01/01/70 00:00      
                  RE: Proposal: Internal Data Bus            01/01/70 00:00      
                     RAM quantity & Interrupts            01/01/70 00:00      
                        RE: RAM quantity & Interrupts            01/01/70 00:00      
      Where's the memory?            01/01/70 00:00      
         RE: Shared memory as the data bus?            01/01/70 00:00      
         RE: Where\'s the memory?            01/01/70 00:00      
            RE: Multiport/DMA limitations            01/01/70 00:00      
               RE: Multiport/DMA limitations            01/01/70 00:00      
                  DMA on the Atari            01/01/70 00:00      
                     RE: DMA on the Atari            01/01/70 00:00      
                        RE: DMA on the Atari            01/01/70 00:00      
                           RE: DMA on the Atari            01/01/70 00:00      
                           RE: DMA on the Atari            01/01/70 00:00      
               RE: Multiport/DMA limitations Yes But..            01/01/70 00:00      
   Future of this project            01/01/70 00:00      
      RE: Future of this project            01/01/70 00:00      
         Purpose of the project            01/01/70 00:00      
            RE: Purpose of the project            01/01/70 00:00      
         RE: Future of this project            01/01/70 00:00      
      RE: Future of this project            01/01/70 00:00      
      RE: Future of this project            01/01/70 00:00      
         RE: Future of this project            01/01/70 00:00      
      RE: Future of this project            01/01/70 00:00      
   RE: Atari 400/800 implementation with 80            01/01/70 00:00      
      RE: Atari games on CD            01/01/70 00:00      
   RE: Multiprocessing/ebay/vintage_puters            01/01/70 00:00      
   RE: Karas the Big Party Pooper            01/01/70 00:00      
      That's the point            01/01/70 00:00      
      RE: Karas the Big Party Pooper            01/01/70 00:00      
         RE: Karas the Big Party Pooper            01/01/70 00:00      
            RE: Karas the Big Party Pooper            01/01/70 00:00      
               RE: in a grid            01/01/70 00:00      
                  RE: in a grid            01/01/70 00:00      
                     RE: in a grid            01/01/70 00:00      
                        RE: in a grid            01/01/70 00:00      
                           RE: in a grid            01/01/70 00:00      
      RE: Karas the Big Party Pooper            01/01/70 00:00      
         RE: Karas the Big Party Pooper            01/01/70 00:00      
   RE: Atari 400/800 implementation with 8052            01/01/70 00:00      
   About the multiprocessor scheme            01/01/70 00:00      
   Home built 8051 computer??            01/01/70 00:00      

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