[fpc-devel] Improving i8086 performance..

Jim Leonard trixter at oldskool.org
Sat Dec 28 03:38:39 CET 2013


On 12/27/2013 5:15 PM, Nikolay Nikolov wrote:
> it'd be nice if Jim could run the test on his 8088 machine

Here you go:

32pas: ticks = 4176
32asm: ticks = 190
~22x faster

64pas: ticks = 6089
64asm: ticks = 225
~27x faster

Raw output also attached.
-- 
Jim Leonard (trixter at oldskool.org)
Check out some trippy MindCandy: http://www.mindcandydvd.com/
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Number of iterations = 4096 * N. Enter N: Generating random numbers...
Testing mul32...
Done; ticks = 4176
Number of iterations = 4096 * N. Enter N: Generating random numbers...
Testing mul32...
Done; ticks = 190
Number of iterations = 2048 * N. Enter N: Generating random numbers...
Testing mul64...
Done; ticks = 6089
Number of iterations = 2048 * N. Enter N: Generating random numbers...
Testing mul64...
Done; ticks = 225


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