here is a list of errors
--------------------------------
NOT PASSED TESTS:
--------------------------------
dmg_sound.gb Failed; #12 :1;
interrupt_time.gb Failed; 7F8F4AAF
cgb_sound.gb Failed: #8 : 1; #9: 1; #10: 1; #11: 4; #12: 2;]]>
CGB_SOUND is a test for GBC and it should fail exactly like that on a DMG. This is expected so no problem there. INTERRUPT_TIME again is a GBC only test ROM, and although I haven't confirmed it, it should likely fail on DMG as well. DMG_SOUND failing is suspicious, but ultimately probably unrelated since the test that failed relates to the wave channel and the glitch affected channel 1 as you said.
Do you have a recording of the startup sound or something else that showcases the bug?
I may be interested in acquiring this 'boy for research.
Sorry for delay. Here is an example: https://chipmusic.org/stress_tn/music/p … ch-example
It consist of 3 parts:
1) Power on, logo melody;
2) How it sounds into a track;
3) 1st Pulse channel play's C5 note with new clear instrument;
Do you have a recording of the startup sound or something else that showcases the bug?
I may be interested in acquiring this 'boy for research.
]]>What CPU revision is it? It says just below the cart connector, between the battery contacts.
You can read this through the battery compartment if you already put it back together.
On CPU it's marked: DMG-CPU B 9311 D; On bottom side DMG-CPU-06
]]>Doesn't sound like a bug, sound more like the data registers within the cpu are broken. Maybe it took a zap or something.
Im still curious thuogh. Can we get a video with sound and a pic of the CPU's pcb?
I think nitro may have a ROM which displays written and read registers on screen. Might be worth looking into.
here is photos of game boy: https://photos.google.com/share/AF1QipM … 91VENvSjBB
]]>Im still curious thuogh. Can we get a video with sound and a pic of the CPU's pcb?
I think nitro may have a ROM which displays written and read registers on screen. Might be worth looking into.
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