z80/z80dasm.cpp: Switched *R (LDIR, OTIR, etc) debugger flag to STEP_OVER

[holub]

STEP_COND on repeatable instructions doesn't allow to skip execution with F10
STEP_OVER is more reasonable for this instructions as allowed to take advantage from F10/F11

Per my understanding that should close match expectation:
static constexpr u32 STEP_OVER = 0x20000000; // this instruction should be stepped over by setting a breakpoint afterwards

[cuavas]

I think at some point in the past, at least djnz did have the “step over” – it apparently changed in c759722. @ajrhacker and @galibert can you explain how the flags are supposed to be used for instructions like this? Is it supposed to be possible to skip over these things when they use the STEP_COND flag?

[cuavas]

Is the gni debugger command on a looping instruction supposed to run until the instruction falls through?

[holub]

The problem with djnz it can used either as loop with back reference or as "conditional jp" and jump forward.