Hi,

I am performing Floating Point Divide By Zero operation. I am able to create this exception occur. It prints the below info on the vxWorks console.

divide_by_zero

0x25ac5f0 (sigactionTest):
sigactionTestdvdzero : MSR b932 , vxFpscrGet f8
0x25ac5f0 (sigactionTest): task 0x25ac5f0 has had a failure and has been stopped.
0x25ac5f0 (sigactionTest): fatal kernel task-level exception!

Floating point divide by zero
Exception current instruction address: 0x0032845c
Machine Status Register: 0x0010b932
Condition Register: 0x22000244
Fp Control and Status Register: 0xc40000f8
Task: 0x25ac5f0 "sigactionTest"
0x25a8850 (tShell0):
divide_by_zero bExceptionFlag = 1, status = value = 0
0 = 0x0


I want to store the below register's info in a variable -- how to do so using C code.

Fp Control and Status Register: 0xc40000f8
Machine Status Register: 0x0010b932
Condition Register: 0x22000244

Please provide suitable explanation if this can be achieved or not.
Regards,
Swaroop

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Sunday, December 19, 2021 at 7:04:55 AM UTC+5, Suleman Khalid wrote:

On Monday, August 30, 2021 at 2:00:45 PM UTC+5, swaroopo...@gmail.com wrote:

Hi,

I am performing Floating Point Divide By Zero operation. I am able to create this exception occur. It prints the below info on the vxWorks console.

divide_by_zero

0x25ac5f0 (sigactionTest):
sigactionTestdvdzero : MSR b932 , vxFpscrGet f8
0x25ac5f0 (sigactionTest): task 0x25ac5f0 has had a failure and has been stopped.
0x25ac5f0 (sigactionTest): fatal kernel task-level exception!

Floating point divide by zero
Exception current instruction address: 0x0032845c
Machine Status Register: 0x0010b932
Condition Register: 0x22000244
Fp Control and Status Register: 0xc40000f8
Task: 0x25ac5f0 "sigactionTest"
0x25a8850 (tShell0):
divide_by_zero bExceptionFlag = 1, status = value = 0
0 = 0x0

I want to store the below register's info in a variable -- how to do so using C code.

Fp Control and Status Register: 0xc40000f8
Machine Status Register: 0x0010b932
Condition Register: 0x22000244

Please provide suitable explanation if this can be achieved or not. Regards,
Swaroop

Could you mention which processor architecture are you using?

If this is ARM FPSCR register, thislink may help:

https://thinkingeek.com/2013/05/12/arm-assembler-raspberry-pi-chapter-13/#:~:text=The%20special%20register%20fpscr%2C%20where%20len%20and%20stride,stored%20in%20bits%2016%20to%2018%20of%20fpscr.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Monday, August 30, 2021 at 2:00:45 PM UTC+5, swaroopo...@gmail.com wrote:

Hi,

I am performing Floating Point Divide By Zero operation. I am able to create this exception occur. It prints the below info on the vxWorks console.

divide_by_zero

0x25ac5f0 (sigactionTest):
sigactionTestdvdzero : MSR b932 , vxFpscrGet f8
0x25ac5f0 (sigactionTest): task 0x25ac5f0 has had a failure and has been stopped.
0x25ac5f0 (sigactionTest): fatal kernel task-level exception!

Floating point divide by zero
Exception current instruction address: 0x0032845c
Machine Status Register: 0x0010b932
Condition Register: 0x22000244
Fp Control and Status Register: 0xc40000f8
Task: 0x25ac5f0 "sigactionTest"
0x25a8850 (tShell0):
divide_by_zero bExceptionFlag = 1, status = value = 0
0 = 0x0

I want to store the below register's info in a variable -- how to do so using C code.

Fp Control and Status Register: 0xc40000f8
Machine Status Register: 0x0010b932
Condition Register: 0x22000244

Please provide suitable explanation if this can be achieved or not.
Regards,
Swaroop

Could you mention which processor architecture are you using?

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)