Welcome, Guest. Please login or register.

Author Topic: Quick assembler question  (Read 2350 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline KarlosTopic starter

  • Sockologist
  • Global Moderator
  • Hero Member
  • *****
  • Join Date: Nov 2002
  • Posts: 16879
  • Country: gb
  • Thanked: 5 times
    • Show all replies
Quick assembler question
« on: November 11, 2003, 12:35:50 AM »
Hi all,

Does anybody know if the 68040 single/double precision rounded FPU instructions such as fsmul, fsadd etc. work on 68060?
int p; // A
 

Offline KarlosTopic starter

  • Sockologist
  • Global Moderator
  • Hero Member
  • *****
  • Join Date: Nov 2002
  • Posts: 16879
  • Country: gb
  • Thanked: 5 times
    • Show all replies
Re: Quick assembler question
« Reply #1 on: November 11, 2003, 02:50:56 PM »
Thanks chaps ;-)
int p; // A
 

Offline KarlosTopic starter

  • Sockologist
  • Global Moderator
  • Hero Member
  • *****
  • Join Date: Nov 2002
  • Posts: 16879
  • Country: gb
  • Thanked: 5 times
    • Show all replies
Re: Quick assembler question
« Reply #2 on: November 16, 2003, 03:30:38 AM »
@PiR

That's OK, its just that I had some code using those rounded instructions. I have rewritten it anyway so it isn't a concern now.

Anyway I got another RTFM for you all :-)

Can anybody confirm for me if repetetive indirect calls to an address such as

jsr (a0)

on the 68060 are folded out by the branch prediction unit or not? I don't have time to trawl through the 68060 User Manual just now but wondered if anybody happens to know...

Thanks :-)
int p; // A