github.com/PDP-10.klh10
1
0
Fork 0
mirror of https://github.com/PDP-10/klh10.git synced 2026-02-27 01:00:02 +00:00
Code Issues Releases Wiki Activity

Add DFKFB numbers from a real KL10.

Browse Source
This commit is contained in:
Lars Brinkhoff
2019-06-13 15:37:47 +02:00
parent fcf812e4d7
commit 77473114b3
1 changed files with 59 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
doc/dfkfb.txt
View File

@@ -51,6 +51,65 @@ Still, it's fun to see how many multiples of a real KL you can run at.
THE REAL THING
==============
These numbers are from the 1978 EK-0KL20-IN-001 "KL10-Based
DECSYSTEM-20 Installation Manual", pages 10-27 and 10-28.
1 - BASIC CLOCK IS 40 NS.
2 - INDEXING TAKES 40 NS.
3 - INDIRECT TAKES 280 NS.
4 - INDEXING AND INDIRECT TAKES 320 NS.
5 - MOVEI TAKES 320 NS.
6 - MOVE FROM AC TAKES 440 NS.
7 - MOVE FROM MEMORY TAKES 480 NS.
8 - HRR FROM MEMORY TAKES 520 NS.
9 - STEOM 0 TAKES 560 NS.
10 - JRST TAKES 360 NS.
11 - JSR TAKES 680 NS.
12 - PUSHJ TAKES 840 NS.
13 - ADD FROM MEMORY TAKES 520 NS.
14 - MUL (9 ADD/SUB - 18 SHIFTS) TAKES 2.52 uS.
15 - DIV TAKES 5.58 uS.
16 - FIX A FLOATING POINT ONE TAKES 1.04 uS.
17 - FLTR AN INTERGER ONE TAKES 1.84 uS.
18 - FAD (1 RIGHT SHIFT) TAKES 1.88 uS.
19 - FAD (8 SHIFT RIGHT - 3 LEFT) TAKES 2.16 uS.
20 - FMP (7 ADD/SUB - 14 SHIFTS) TAKES 2.80 uS.
21 - FDV TAKES 5.72 uS.
22 - DMOVE FROM MEMORY TAKES 880 NS.
23 - DFAD (1 RIGHT SHIFT) TAKES 2.44 uS.
24 - DFAD (8 SHIFT RIGHT - 1 LEFT) TAKES 2.44 uS.
25 - DFMP (7 ADD/SUB - 32 SHIFTS) TAKES 4.92 uS.
26 - DFDV TAKES 10.32 uS.
27 - CONO PI TAKES 1.92 uS.
28 - CONI PI TAKES 3.36 uS.
29 - DATAO APR TAKES 1.56 uS.
30 - DATAI APR TAKES 1.76 uS.
31 - MOVE TO MEMORY TAKES 680 NS.
32 - LOGICAL SHIFT (35 PLACES LEFT) TAKES 640 NS.
33 - LOGICAL SHIFT (35 PLACES RIGHT) TAKES 760 NS.
34 - LOGICAL SHIFT COMBINED (71 PLACES LEFT) TAKES 1.12 uS.
35 - LOGICAL SHIFT COMBINED (71 PLACES RIGHT) TAKES 1.16 uS.
36 - INCREMENT BYTE POINTER TAKES 1.00 uS.
37 - INCREMENT AND LOAD BYTE TAKES 1.44 uS.
38 - INCREMENT AND DEPOSIT BYTE TAKES 1.80 uS.
39 - JFCL TAKES 880 NS.
40 - CAI TAKES 480 NS.
41 - JUMP TAKES 480 NS.
42 - CAM TAKES 600 NS.
43 - EQV AC TO AC TAKES 480 NS.
44 - EQV MEMORY TO AC TAKES 520 NS.
45 - SETOB TAKES 680 NS.
46 - AOS TO MEMORY TAKES 840 NS.
47 - EXCHANGE AN AC WITH AN AC TAKES 640 NS.
48 - EXCHANGE AN AC WITH MEMORY TAKES 840 NS.
49 - EXECUTE TAKES 640 NS.
50 - BLT MEMORY TO MEMORY TAKES 1.92 uS.
51 - BLT AC TO MEMORY TAKES 1.88 mS.
52 - DATAI TAKES 10.00 uS.
53 - DATAO TAKES 10.00 uS.
KLH's original text follows:
Unfortunately, although I have output logs of DFKFB runs for a
variety of platforms, I do not have one for a real KL10 itself!
Hopefully someone will be able to contribute this from their archives.