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Article #623869Re: What microprocessor is more powerful, the Z80 or 6502?
From: Andreas Kohlbach
Date: Fri, 08 Jun 2018 19:30
Date: Fri, 08 Jun 2018 19:30
42 lines
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3466 bytes
On Fri, 8 Jun 2018 08:10:09 -0000 (UTC), Gordon Henderson wrote: > > In article <87po13w...@usenet.ankman.de>, > Andreas Kohlbach <a...@spamfence.net> wrote: >>Back in the late 70s and mid 80s you could chose between a Z80 and 6502, >>when it came to 8-bit home computers. Sure there where some micros using >>a M6809 (almost 16-bit) and some 8080 CPUs. But most of the micros then >>ran a 6502 or Zilog Z80. >> >>Which one is more powerful, not regarding custom chips taking load off the >>CPU, like early "GPUs" chips in the Commodore 64? >> >>I say the Z80 was. It could pair some 8bit registers to 16bit >>entities. It also already had some kind of primitives like the later 8086 >>and all future microprocessors had the 6502 lacked, speeding up things >>and made programming in assembly easier. > > From my own practical 1st hand experience of writing shed-loads of both > 6502 and Z80 code, I'd say that typical systems were about the same - > however a typical 6502 was 1Mhz and a typical Z80 was 4Mhz, so clock > for clock the 6502 was faster. You mean the clock was faster for the Z80? What about primitives the Z80 supported, if you can call them primitives? If you want to copy 1000 bytes from $1000 to $1005 with LDIR: LD HL, $1000 LD DE, $1005 LD BC, 1000 LDIR It would be more complex if you wanted to achieve this with a 6502. > I preferd the 6502 though and still use it to this day. (at 14Mhz now though) I like it old school. No 6502 should ever run faster than 1 MHz. ;-) -- Andreas https://news-commentaries.blogspot.com/2018/06/the-zilog-z80-is-8-bit-microprocessor.html
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From: Andreas Kohlbach <a...@spamfence.net>
Newsgroups: alt.folklore.computers
Subject: Re: What microprocessor is more powerful, the Z80 or 6502?
Date: Fri, 08 Jun 2018 15:30:06 -0400
Organization: https://news-commentaries.blogspot.com/
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