Sujet : Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress)
De : david.schultz (at) *nospam* earthlink.net (David Schultz)
Groupes : comp.archDate : 02. Oct 2024, 16:07:25
Autres entêtes
Message-ID : <XvKcne3xI5Uz_GD7nZ2dnZfqn_adnZ2d@earthlink.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13
User-Agent : Mozilla Thunderbird
On 10/1/24 3:00 PM, Thomas Koenig wrote:
MitchAlsup1 <mitchalsup@aol.com> schrieb:
A 32-bit bus would have priced the 68K at 30%-50% higher simply
due to the number of pins on available packages. This would have
eliminated any chance at competing for the broad markets at that
time.
Would have an external 16-bit bus and an internal 32-bit bus have
been advantageous, or would this have blown a likely transistor
budget for little gain?
Saving an extra pass through the 16 bit ALU for a 32 bit operation would be faster. Assuming that you didn't have to wait for another bus cycle to get the other half of an operand.
Making it faster for register to register operations and not much else.
-- http://davesrocketworks.comDavid Schultz
| Date | Sujet | # | | Auteur |
| 16 Apr 24 |  Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 237 | | Lawrence D'Oliveiro |
| 16 Apr 24 |  Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 236 | | David Brown |
| 16 Apr 24 |    Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | MitchAlsup1 |
| 26 May 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | MitchAlsup1 |
| 1 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 233 | | MitchAlsup1 |
| 1 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 232 | | Thomas Koenig |
| 1 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 225 | | MitchAlsup1 |
| 2 Oct 24 |  Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 223 | | Brett |
| 3 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 222 | | Lawrence D'Oliveiro |
| 3 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | Brett |
| 3 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | Anton Ertl |
| 3 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 219 | | David Brown |
| 3 Oct 24 | Byte ordering (was: Whether something is RISC or not) | 218 | | Anton Ertl |
| 3 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 1 | | David Brown |
| 4 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 215 | | Lawrence D'Oliveiro |
| 4 Oct 24 | Re: Byte ordering | 1 | | Lynn Wheeler |
| 4 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 211 | | David Brown |
| 4 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 210 | | Anton Ertl |
| 4 Oct 24 | Re: Byte ordering | 5 | | BGB |
| 5 Oct 24 | Re: Byte ordering | 4 | | MitchAlsup1 |
| 5 Oct 24 | Re: Byte ordering | 2 | | BGB |
| 5 Oct 24 | Re: Byte ordering | 1 | | Lawrence D'Oliveiro |
| 5 Oct 24 | Re: Byte ordering | 1 | | Lawrence D'Oliveiro |
| 5 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 13 | | Lawrence D'Oliveiro |
| 5 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 12 | | Brett |
| 5 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 11 | | Anton Ertl |
| 5 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 10 | | Michael S |
| 6 Oct 24 | Re: Byte ordering | 1 | | Terje Mathisen |
| 6 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 8 | | Brett |
| 7 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 7 | | Lawrence D'Oliveiro |
| 7 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 6 | | Brett |
| 7 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 5 | | Michael S |
| 7 Oct 24 | Re: Byte ordering | 2 | | Stefan Monnier |
| 7 Oct 24 | Re: Byte ordering | 1 | | Michael S |
| 7 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 2 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: Byte ordering | 1 | | Terje Mathisen |
| 6 Oct 24 | Re: Byte ordering | 191 | | David Brown |
| 6 Oct 24 | Re: Byte ordering | 190 | | Anton Ertl |
| 6 Oct 24 | Re: Byte ordering | 189 | | John Dallman |
| 7 Oct 24 | Re: Byte ordering | 20 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: Byte ordering | 19 | | John Dallman |
| 9 Oct 24 | VMS/NT memory management (was: Byte ordering) | 1 | | Stefan Monnier |
| 15 Oct 24 | Re: Byte ordering | 2 | | Lawrence D'Oliveiro |
| 15 Oct 24 | Re: Byte ordering | 1 | | MitchAlsup1 |
| 15 Oct 24 | Re: Byte ordering | 15 | | Lawrence D'Oliveiro |
| 15 Oct 24 | Re: Byte ordering | 3 | | Michael S |
| 15 Oct 24 | Re: Byte ordering | 1 | | John Dallman |
| 18 Oct 24 | Re: Byte ordering | 1 | | Lawrence D'Oliveiro |
| 15 Oct 24 | Re: Byte ordering | 9 | | John Dallman |
| 16 Oct 24 | Re: Byte ordering | 7 | | George Neuner |
| 16 Oct 24 | Re: Byte ordering | 6 | | Terje Mathisen |
| 16 Oct 24 | Re: Byte ordering | 5 | | David Brown |
| 17 Oct 24 | Re: Byte ordering | 2 | | George Neuner |
| 17 Oct 24 | Re: Byte ordering | 1 | | David Brown |
| 17 Oct 24 | Re: clouds, not Byte ordering | 2 | | John Levine |
| 17 Oct 24 | Re: clouds, not Byte ordering | 1 | | David Brown |
| 18 Oct 24 | Re: Byte ordering | 1 | | Lawrence D'Oliveiro |
| 16 Oct 24 | Re: Byte ordering | 2 | | Paul A. Clayton |
| 18 Oct 24 | Re: Microkernels & Capabilities (was Re: Byte ordering) | 1 | | Lawrence D'Oliveiro |
| 7 Oct 24 | 80286 protected mode | 168 | | Anton Ertl |
| 7 Oct 24 | Re: 80286 protected mode | 5 | | Lars Poulsen |
| 7 Oct 24 | Re: 80286 protected mode | 4 | | Terje Mathisen |
| 7 Oct 24 | Re: 80286 protected mode | 1 | | Michael S |
| 7 Oct 24 | Re: 80286 protected mode | 2 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: 80286 protected mode | 1 | | Terje Mathisen |
| 7 Oct 24 | Re: 80286 protected mode | 3 | | Brett |
| 7 Oct 24 | Re: 80286 protected mode | 2 | | Michael S |
| 7 Oct 24 | Re: 80286 protected mode | 1 | | Brett |
| 7 Oct 24 | Re: 80286 protected mode | 1 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: 80286 protected mode | 152 | | MitchAlsup1 |
| 8 Oct 24 | Re: 80286 protected mode | 4 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: 80286 protected mode | 3 | | MitchAlsup1 |
| 9 Oct 24 | Re: 80286 protected mode | 1 | | David Brown |
| 15 Oct 24 | Re: 80286 protected mode | 1 | | Lawrence D'Oliveiro |
| 8 Oct 24 | Re: 80286 protected mode | 147 | | Anton Ertl |
| 8 Oct 24 | Re: 80286 protected mode | 1 | | Robert Finch |
| 9 Oct 24 | Re: 80286 protected mode | 145 | | David Brown |
| 9 Oct 24 | Re: 80286 protected mode | 79 | | MitchAlsup1 |
| 9 Oct 24 | Re: 80286 protected mode | 78 | | David Brown |
| 9 Oct 24 | Re: 80286 protected mode | 77 | | Stephen Fuld |
| 10 Oct 24 | Re: 80286 protected mode | 2 | | MitchAlsup1 |
| 10 Oct 24 | Re: 80286 protected mode | 1 | | David Brown |
| 10 Oct 24 | Re: 80286 protected mode | 1 | | David Brown |
| 11 Oct 24 | Re: 80286 protected mode | 73 | | Tim Rentsch |
| 15 Oct 24 | Re: 80286 protected mode | 72 | | Stefan Monnier |
| 15 Oct 24 | Re: 80286 protected mode | 30 | | MitchAlsup1 |
| 16 Oct 24 | Re: 80286 protected mode | 25 | | MitchAlsup1 |
| 16 Oct 24 | Re: C and turtles, 80286 protected mode | 13 | | John Levine |
| 16 Oct 24 | Re: C and turtles, 80286 protected mode | 7 | | MitchAlsup1 |
| 16 Oct 24 | Re: C and turtles, 80286 protected mode | 6 | | John Levine |
| 17 Oct 24 | Re: C and turtles, 80286 protected mode | 5 | | Thomas Koenig |
| 20 Oct 24 | Re: C and turtles, 80286 protected mode | 4 | | Lawrence D'Oliveiro |
| 20 Oct 24 | Re: C and turtles, 80286 protected mode | 3 | | George Neuner |
| 22 Oct 24 | Re: C and turtles, 80286 protected mode | 2 | | Tim Rentsch |
| 22 Oct 24 | Re: C and turtles, 80286 protected mode | 1 | | George Neuner |
| 16 Oct 24 | Re: C and turtles, 80286 protected mode | 1 | | David Brown |
| 16 Oct 24 | Re: C and turtles, 80286 protected mode | 4 | | Paul A. Clayton |
| 17 Oct 24 | Re: C and turtles, 80286 protected mode | 1 | | David Brown |
| 20 Oct 24 | Re: C and turtles, 80286 protected mode | 2 | | Lawrence D'Oliveiro |
| 20 Oct 24 | Re: C and turtles, 80286 protected mode | 1 | | Paul A. Clayton |
| 16 Oct 24 | Re: 80286 protected mode | 7 | | Thomas Koenig |
| 17 Oct 24 | Re: 80286 protected mode | 3 | | George Neuner |
| 17 Oct 24 | Re: 80286 protected mode | 1 | | Tim Rentsch |
| 16 Oct 24 | Re: 80286 protected mode | 3 | | David Brown |
| 17 Oct 24 | Re: 80286 protected mode | 1 | | Tim Rentsch |
| 16 Oct 24 | Re: 80286 protected mode | 41 | | David Brown |
| 9 Oct 24 | Re: 80286 protected mode | 51 | | Thomas Koenig |
| 13 Oct 24 | Re: 80286 protected mode | 14 | | Anton Ertl |
| 8 Oct 24 | Re: 80286 protected mode | 6 | | John Levine |
| 6 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 2 | | Michael S |
| 4 Oct 24 | Re: Byte ordering (was: Whether something is RISC or not) | 1 | | John Dallman |
| 2 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | Thomas Koenig |
| 2 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 5 | | David Schultz |
| 3 Oct 24 | Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress) | 1 | | Lawrence D'Oliveiro |