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debug: 0.938
ppc: 0.870
device: 0.691
graphic: 0.580
performance: 0.559
semantic: 0.323
mistranslation: 0.305
risc-v: 0.293
vnc: 0.252
network: 0.215
architecture: 0.202
files: 0.194
socket: 0.150
permissions: 0.142
boot: 0.137
PID: 0.121
kernel: 0.108
VMM: 0.094
arm: 0.090
peripherals: 0.086
TCG: 0.086
register: 0.086
user-level: 0.078
i386: 0.054
hypervisor: 0.044
virtual: 0.034
x86: 0.027
assembly: 0.026
KVM: 0.024
PPC: not honouring single stepping through branches and skips a nip
Description of problem:
When debugging in MacsBug, tracing/stepping over any branches (e.g. blt, bgt) will land on the instruction immediately passed the expected address. It appears that branches will execute the target instruction then single step to the next instruction in one go, instead of single stepping to the target instruction.
For example, if a blt should land on 13371234, stepping over the branch will land on 13371238. The instruction at 13371234 still executes, but this is not the behaviour on a baremetal Mac OS system.
Additional information:
A <a href="https://i.imgur.com/f6dguMt.png">screenshot</a> before the branch.
A <a href="https://imgur.com/WoVDtN7.png">screenshot<a/> after pressing 't' to step over the branch. Note that the PC is now 1E36CAB8 instead of the expected 1E36CAB4.
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