Fix problem with running programs in chell

[Patryk Kubiak]

Running new program in chell causes hard fault

[Patryk Kubiak]

start working

[Patryk Kubiak]

My debug work shows, that it is the problem with switching tasks in the kernel. The r7 register is suspect

[Patryk Kubiak]

Fix hard fault problem. Close #4

→ <<cset 1844a1b5babb>>

[Patryk Kubiak]

Problem solved. It was related with the r7 and lr registers, that was pushed to the wrong stack. Solved by make the function naked

[Patryk Kubiak]

Fix hard fault problem. Close #4

→ <<cset 1844a1b5babb>>

[Patryk Kubiak]

Removing component: chell (automated comment)