Is there a way to get a dump of a RAM address frame-by-frame as it's running?

[andrew87]

Hello,

First time using Geiger's snes9x Debugger as well as RAM Watch. Is there a way to record a stream of the value at a certain RAM address, frame by frame, as the game runs? Whether it appends to a file continuously, or writes to some in-memory dump or dialog that I can then save, either works.

In Geiger's Debugger I tried to use Trace From with: "CPU Logging" checked, "From Address" 7E05E5, "To Address" 7E05E6, and I've tried both 0 and 1 for "Times executed", as well as checking "Capture every pass", but I don't see any log entries. (Maybe I'm missing an obvious step?) What I do is just let the game run for a few seconds, then see if the .log file has anything, but I only see an EOT.

So then I tried RAM Watch but the Save functionality only seems to save the values at the specific point in time I'm paused.

Thanks in advance,
Andrew87

[andrew87]

Ah, just realized that the .log files I saw were from the Dump option in the Hex Editor, not related to Trace From. I guess I have no idea what tracing does then.

[andrew87]

Okay, never mind folks, sorry. I figured it out. I didn't realize the addresses for Trace From were supposed to be CPU instruction addresses (ROM), not RAM. Makes sense, duh. So I found the specific instruction that sets the RAM address I'm concerned with:

Code Select Expand

$80/8142 8D E5 05    STA $05E5

And tracing from 808142 to 808142, with CPU logging checked, and running the game, I captured what I was looking for:

Code Select Expand


$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:BBA4 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0470 VC:248 FC:34 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:AB45 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0448 VC:248 FC:35 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:596A X:0004 Y:0000 D:0000 DB:82 S:1FFB P:envmxdizc HC:1288 VC:253 FC:36 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:C023 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0454 VC:248 FC:37 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:C1C0 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0442 VC:248 FC:38 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:C9D1 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0464 VC:248 FC:39 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:F226 X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0452 VC:248 FC:40 I:00
*** IRQ
*** IRQ
*** NMI
$80/8142 8D E5 05    STA $05E5  [$82:05E5]   A:BBCF X:0004 Y:0000 D:0000 DB:82 S:1FFB P:eNvmxdizc HC:0474 VC:248 FC:41 I:00
*** IRQ
*** IRQ
*** NMI


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