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Voltage
Account closed
Registered: Jul 2008
Posts: 14 |
Vice Monitor
Howdy all,
I've been toying with some vic timing tricks and I've read that when entering the monitor from vice, that I should see the current raster line and cycle.
I only ever get LIN 000 and CYC 000.
I'm using winvice 2.2, but I've also tried with winvice 2.1 with the same results.
Anyone have any advice?
Cheers
Voltage |
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assiduous
Account closed
Registered: Jun 2007
Posts: 343 |
and whats wrong with that ? apparently vice enters the monitor at the start of a frame instead of some random cycle,thats why you`re seeing line 0 cycle 0. use `STEP` to step through the instructions or set a break point at the start of your vic code. |
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Voltage
Account closed
Registered: Jul 2008
Posts: 14 |
That did the trick.
Thanks. |
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enthusi
Registered: May 2004
Posts: 677 |
Yeah, I think vice does enter at the same point every time which can be a (minor) pain if you want (for example) enter during some rastersplit. Even if that area covers 80% of the screen, you're doomed to miss it and have to look for code executed in that raster-range to get a breakpoint set.
If there is some 'break at rasterline X' command I missed it as well.
But I'd want ONE! =) |
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MagerValp
Registered: Dec 2001
Posts: 1078 |
z instruction (STEP) takes an option argument of how many instructions to step. The C64 executes roughly 20 instructions per rasterline, so to step down to line 100 or thereabouts use z +2000. For example on the basic screen:
** Monitor 000 001
(C:$e5cf) z +2000
Stepping through the next 2000 instruction(s).
** Monitor 100 021
.C:e5cf 85 CC STA $CC
(C:$e5cf) |
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Mr. SID
Registered: Jan 2003
Posts: 424 |
Still, this kinda sucks. On Power64 I could just use the tl command to trace to the beginning of any rasterline.
Oh, and it had this command to dump the VIC state:
v vic
>VIC State (Video IC - $D000-$D02E)
> Scanline: 0 - Cycle: 3
>
> Display Mode: Standard Text
> Scroll X/Y: 0/3
> Screen Size: 40 x 25 Characters
>
> VIC Memory Bank: $0000 - $3FFF
> Video Memory: $0400
> Character Set: $D000
> Bitmap Memory: $0000
>
> Spr.0 Spr.1 Spr.2 Spr.3 Spr.4 Spr.5 Spr.6 Spr.7
> Enabled: No No No No No No No No
> X-Pos: 0 0 0 0 0 0 0 0
> Y-Pos: 0 0 0 0 0 0 0 0
> Data: $0000 $0000 $0000 $0000 $0000 $0000 $0000 $0000
> Color: 1 2 3 4 5 6 7 12
> Mode: Std. Std. Std. Std. Std. Std. Std. Std.
> X-Expand: No No No No No No No No
> Y-Expand: No No No No No No No No
> Priority: Spr. Spr. Spr. Spr. Spr. Spr. Spr. Spr.
>
> Raster IRQ Scanline: 311
> Enabled Interrupts: None
> Pending Interrupts: Raster
I still miss that a lot in VICE... |
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Radiant
Registered: Sep 2004
Posts: 639 |
(C:$dd10) io
VIC-II:
>C:d000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1b 00 00 00 00 c8 00 ........................
>C:d018 15 71 f0 00 00 00 00 00 fe f6 f1 f2 f3 f4 f0 f1 f2 f3 f4 f5 f6 f7 fc .q.....................
SID:
>C:d400 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........................
>C:d418 00 ff ff 00 00 00 00 00 ........
CIA1:
>C:dc00 7f ff ff 00 65 3f ff ff 00 00 00 01 00 00 01 08 ....M?..........
CIA2:
>C:dd00 97 ff 3f 00 ff ff ff ff 00 00 00 01 00 00 08 08 ..?.............
You don't get the syntactic sugar and raster IRQ line/VIC bank, but otherwise it's pretty much the same. |
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Mr. SID
Registered: Jan 2003
Posts: 424 |
While I can read VICE's io output too, I wouldn't go as far as calling it the same. It's not just syntactic sugar, it saves time and leaves less room for making mistakes... |
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enthusi
Registered: May 2004
Posts: 677 |
Just patched vice-2.2/src/monitor/monitor.c to display this:
** Monitor 000 001
(C:$e5d4) io
Display Mode: Standard Text
GFX Mode: hires color
VIC Memory Bank: $0000 - $3fff
Video Memory: $0400
Character Set: $d000
Bitmap Memory: $0000
VIC-II:
>C:d000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
>C:d010 00 1b 00 00 00 00 c8 00 15 71 f0 00 00 00 00 00 .........q......
>C:d020 fe f6 f1 f2 f3 f4 f0 f1 f2 f3 f4 f5 f6 f7 fc ...............
Could be enhanced easyly of course:
if (mem_ioreg_list_base) {
while (1) {
if (n==0)
{
v_d016 = mon_get_mem_val(default_memspace,0xd016);
v_d011 = mon_get_mem_val(default_memspace,0xd011);
v_dd00 = mon_get_mem_val(default_memspace,0xdd00);
v_d018 = mon_get_mem_val(default_memspace,0xd018);
v_bmflag = ((v_d011&0x20)>>5); /* 0 text, 1 gfx */
v_hmflag = (v_d016&0x10)>>4; /* 0 hires, 1 multi */
v_bank = 0xc000 - (v_dd00 & 3) * 0x4000;
v_bitmap = ((v_d018 >> 3) & 1) * 0x2000 + v_bank;
v_map = (v_d018 >> 4) * 0x0400 + v_bank;
v_font = ((v_d018 >> 1) & 0x7)*0x800 + v_bank;
/* $1000 and $9000 mapped to $d000 */
if ((v_font==0x1000)||(v_font==0x9000)) v_font=0xd000;
if (v_bmflag) mon_out("Display Mode: Bitmap gfx\n");
else mon_out("Display Mode: Standard Text\n");
if (v_hmflag) mon_out("GFX Mode: multi color\n");
else mon_out("GFX Mode: hires color\n");
mon_out("VIC Memory Bank: $%04x - $%04x\n",v_bank,v_bank+0x3fff);
mon_out("Video Memory: $%04x\n",v_map);
if (!v_bmflag) mon_out("Character Set: $%04x\n",v_font);
mon_out("Bitmap Memory: $%04x\n\n",v_bitmap);
}
Edit: I assume this to fuck up all monitors except for x64. |
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MagerValp
Registered: Dec 2001
Posts: 1078 |
What would really rock would be a command to display the internal state of the chipset, and not just its external registers. It'd be a huge help for coding VIC tricks, and the SID would show something more interesting than zeros... |
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Frantic
Registered: Mar 2003
Posts: 1648 |
Magervalp is right. It is precisely those thingsthose that would not be possible on C64that make a emulator monitor especially valuable in some cases. In a similar vein, one cannot really check the status of the SID at a particular moment, as it works right now. I think it only shows the last value written to any SID register for all registers (just like the real SID works, when seen from the "outside"). |
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