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stmhal/pendsv: Fill in comments about what the stack contains.

This commit is contained in:
Damien George 2017-01-31 13:58:34 +11:00
parent 7d8c79ab6d
commit a6386f74b8
1 changed files with 12 additions and 12 deletions
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24
stmhal/pendsv.c
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@ -70,21 +70,21 @@ void pendsv_isr_handler(void) {
// on entry to this (naked) function, stack has the following layout: // on entry to this (naked) function, stack has the following layout:
// //
// stack layout with DEBUG disabled: // stack layout with DEBUG disabled:
// sp[6]: pc // sp[6]: pc=r15
// sp[5]: ? // sp[5]: lr=r14
// sp[4]: ? // sp[4]: r12
// sp[3]: ? // sp[3]: r3
// sp[2]: ? // sp[2]: r2
// sp[1]: ? // sp[1]: r1
// sp[0]: r0 // sp[0]: r0
// //
// stack layout with DEBUG enabled: // stack layout with DEBUG enabled:
// sp[8]: pc // sp[8]: pc=r15
// sp[7]: lr // sp[7]: lr=r14
// sp[6]: ? // sp[6]: r12
// sp[5]: ? // sp[5]: r3
// sp[4]: ? // sp[4]: r2
// sp[3]: ? // sp[3]: r1
// sp[2]: r0 // sp[2]: r0
// sp[1]: 0xfffffff9 // sp[1]: 0xfffffff9
// sp[0]: ? // sp[0]: ?