4ebd11258c
Simics is not supported. As such, the sample project README.txt files must not provide instructions on how to execute an image using Simics. Change-Id: I6cc09169902b5e10f50799c280d0bbc63f1ae624 Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
52 lines
2.3 KiB
Plaintext
52 lines
2.3 KiB
Plaintext
Title: test_fp_sharing
|
|
|
|
Description:
|
|
|
|
This test uses two tasks to independently compute pi, while two other tasks
|
|
load and store floating point registers and check for corruption. This tests
|
|
the ability of tasks to safely share floating point hardware resources, even
|
|
when switching occurs preemptively. (Note that both sets of tests run
|
|
concurrently even though they report their progress at different times.)
|
|
|
|
The demonstration utilizes microkernel resource APIs, timers, semaphores,
|
|
round robin scheduling, and floating point support.
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Building and Running Project:
|
|
|
|
This microkernel project outputs to the console. It can be built and executed
|
|
on QEMU as follows:
|
|
|
|
make pristine
|
|
make microkernel.qemu
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
Sample Output:
|
|
|
|
Floating point sharing tests started
|
|
===================================================================
|
|
Pi calculation OK after 50 (high) + 1 (low) tests (computed 3.141594)
|
|
Load and store OK after 100 (high) + 29695 (low) tests
|
|
Pi calculation OK after 150 (high) + 2 (low) tests (computed 3.141594)
|
|
Load and store OK after 200 (high) + 47593 (low) tests
|
|
Pi calculation OK after 250 (high) + 4 (low) tests (computed 3.141594)
|
|
Load and store OK after 300 (high) + 66674 (low) tests
|
|
Pi calculation OK after 350 (high) + 5 (low) tests (computed 3.141594)
|
|
Load and store OK after 400 (high) + 83352 (low) tests
|
|
Pi calculation OK after 450 (high) + 7 (low) tests (computed 3.141594)
|
|
Load and store OK after 500 (high) + 92290 (low) tests
|
|
Pi calculation OK after 550 (high) + 9 (low) tests (computed 3.141594)
|
|
Load and store OK after 600 (high) + 123288 (low) tests
|
|
Pi calculation OK after 650 (high) + 11 (low) tests (computed 3.141594)
|
|
Load and store OK after 700 (high) + 153272 (low) tests
|
|
Pi calculation OK after 750 (high) + 14 (low) tests (computed 3.141594)
|
|
Load and store OK after 800 (high) + 175104 (low) tests
|
|
Pi calculation OK after 850 (high) + 16 (low) tests (computed 3.141594)
|
|
Load and store OK after 900 (high) + 193801 (low) tests
|
|
Pi calculation OK after 950 (high) + 17 (low) tests (computed 3.141594)
|
|
Load and store OK after 1000 (high) + 215252 (low) tests
|
|
===================================================================
|
|
VXMICRO PROJECT EXECUTION SUCCESSFUL
|