CYCLES.TXT

From Atari Wiki
Revision as of 14:31, 16 December 2023 by Olivier.jan (talk | contribs) (Replacing content of with translated version)
Jump to navigation Jump to search
SHIZUKA is pleased to present this table of 68000 cycles, created in two evenings with the significant help of:

craft2 ( stedi )
hard drive ( wow, the speed )
"68000 instruction guide, vol 2 by NACHTMANN at PUBLITRONIC"

Please distribute this table without modifying the header.

Effective address calculation

                b/w     l

dn              0       0
an              0       0
(an)            4       8
(an)+           4       8
-(an)           6       10
d16(an)         8       12
d8(an,xi)       10      14
abs.w           8       12
abs.l           12      16
d16(pc) 8       12
d8(pc,x1)       10      14
imm             4       8

...

interruption               44#
violation de privilège     34
trace                      34
trap                       38
trapvs                     34

+ add the effective address calculation time
* maximum duration
# 4 clock periods included for the interrupt cycle