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| author | Damien George <damien.p.george@gmail.com> | 2017-01-31 13:58:34 +1100 |
|---|---|---|
| committer | Damien George <damien.p.george@gmail.com> | 2017-01-31 13:58:34 +1100 |
| commit | a6386f74b821e34e86f1853b539b3140db7ad406 (patch) | |
| tree | 56bbd78f226e65c0d9f5e7c9f01f150be091e30c /stmhal/pendsv.c | |
| parent | 7d8c79ab6d6b714f60ad07189f29e526cc0aee9a (diff) | |
| download | micropython-a6386f74b821e34e86f1853b539b3140db7ad406.tar.gz micropython-a6386f74b821e34e86f1853b539b3140db7ad406.zip | |
stmhal/pendsv: Fill in comments about what the stack contains.
Diffstat (limited to 'stmhal/pendsv.c')
| -rw-r--r-- | stmhal/pendsv.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/stmhal/pendsv.c b/stmhal/pendsv.c index ff4480eed3..61fe954390 100644 --- a/stmhal/pendsv.c +++ b/stmhal/pendsv.c @@ -70,21 +70,21 @@ void pendsv_isr_handler(void) { // on entry to this (naked) function, stack has the following layout: // // stack layout with DEBUG disabled: - // sp[6]: pc - // sp[5]: ? - // sp[4]: ? - // sp[3]: ? - // sp[2]: ? - // sp[1]: ? + // sp[6]: pc=r15 + // sp[5]: lr=r14 + // sp[4]: r12 + // sp[3]: r3 + // sp[2]: r2 + // sp[1]: r1 // sp[0]: r0 // // stack layout with DEBUG enabled: - // sp[8]: pc - // sp[7]: lr - // sp[6]: ? - // sp[5]: ? - // sp[4]: ? - // sp[3]: ? + // sp[8]: pc=r15 + // sp[7]: lr=r14 + // sp[6]: r12 + // sp[5]: r3 + // sp[4]: r2 + // sp[3]: r1 // sp[2]: r0 // sp[1]: 0xfffffff9 // sp[0]: ? |