feature request: frame counter

[a/b]

Super simple frame counter, incremented every time the emulator starts working on a new frame. Interfaced via debugger command, if issued without a parameter it prints the current value, with a parameter it sets the counter to specified value.
Not sure if something similar exists, so here it is. The idea behind it is to have an easy and reliable "timer" support when fixing old demos/games (that require specific timing to work properly and/or prevent them going out of sync) to work from HD and on super fast systems like PiStorm.

[Rock'n Roll]

There is a frame counter implemented in WinUAE-debugger.
You get the value with the >c command.
If you want go one frame forward you can use the fs-command.

; fs <lines to wait> | <vpos> <hpos> Wait n scanlines/position.

>c
DMACON: 23a0 INTENA: 0000 (0000) INTREQ: 0028 (0028) VPOS: 69 HPOS: 3
...
Average frame time: 29292.38 ms [frames: 13535 time: 396472328]
>fs 313		
...
>c
...
DMACON: 23a0 INTENA: 0000 (0000) INTREQ: 0028 (0028) VPOS: 69 HPOS: 3
...
Average frame time: 39983.75 ms [frames: 13536 time: 541220004]
>

Maybe a second framecounter is needed startet new by '0' together with a breakpoint as option?

[a/b]

OK, that works. Thanks! Would be nice to be able to reset it, though.

[Rock'n Roll]

frame and scanlinecounter could be interesting:
my idea:

>fsc
frame and scanline counter enabled

>fsco
frame and scanline counter disabled

frame and scanline counter if enabled:
227*313=71051 = 1 frame

>t
Cycles: 5 Chip, 10 CPU. (V=105 H=6 -> V=105 H=11)		; (does not fit for the example)
framecounter=0.18219863		scanlines=57,0 			; this line is added if >fsc is set
VPOS: 105 ($069) HPOS: 011 ($00b) COP: $0006f010
  D0 F0DC005A   D1 000200B6   D2 0000000F   D3 000000ED
  D4 0000001F   D5 00000000   D6 00000000   D7 00000000
  A0 00028687   A1 0006F0DC   A2 00000000   A3 00000000
  A4 00000000   A5 00000000   A6 00C028F6   A7 00C609C0
USP  00C609C0 ISP  00C619C0
SR=0011 T=00 S=0 M=0 X=1 N=0 Z=0 V=0 C=1 IM=0 STP=0
Prefetch 0c39 (CMP) 00ff (ILLEGAL) Chip latch 00000000
00028456 0c39 00ff 00df f006      cmp.b #$ff,$00dff006
Next PC: 0002845e
>