From 77473114b3c7e45780f76c4db32f280733ef6d73 Mon Sep 17 00:00:00 2001 From: Lars Brinkhoff Date: Thu, 13 Jun 2019 15:37:47 +0200 Subject: [PATCH] Add DFKFB numbers from a real KL10. --- doc/dfkfb.txt | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/doc/dfkfb.txt b/doc/dfkfb.txt index 7feb187..1146623 100644 --- a/doc/dfkfb.txt +++ b/doc/dfkfb.txt @@ -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.