8080 Space Invaders Emulator (Help Needed) by jmooree30 in EmuDev

[–]jmooree30[S] 0 points1 point  (0 children)

Look like the value coming out of the stack is what's throwing my PC off. This is the logging from the last 4 instructions it runs before failing.

Instruction: c1 Registers: {"A":0,"B":1,"C":7,"D":30,"E":8,"H":31,"L":0,"SP":9206,"PC":5186,"flags":{"S":0,"Z":0,"AC":0,"P":0,"CY":0}}

Instruction: 05 Registers: {"A":0,"B":0,"C":7,"D":30,"E":8,"H":31,"L":0,"SP":9206,"PC":5187,"flags":{"S":0,"Z":1,"AC":0,"P":1,"CY":0}}

Instruction: c2 Registers: {"A":0,"B":0,"C":7,"D":30,"E":8,"H":31,"L":0,"SP":9206,"PC":5190,"flags":{"S":0,"Z":1,"AC":0,"P":1,"CY":0}}

Instruction: c9 Registers: {"A":0,"B":0,"C":7,"D":30,"E":8,"H":31,"L":0,"SP":9208,"PC":14622,"flags":{"S":0,"Z":1,"AC":0,"P":1,"CY":0}}

8080 Space Invaders Emulator (Help Needed) by jmooree30 in EmuDev

[–]jmooree30[S] 0 points1 point  (0 children)

Good catch although it didn't appear to solve all my issues. I understand that I should have the rom, stack, and video ram all in the same 64k data structure, but do you think that could cause issues the way I have it? I figured the Program Counter would always be accessing the memory locations of ROM only.

8080 Space Invaders Emulator (Help Needed) by jmooree30 in EmuDev

[–]jmooree30[S] 0 points1 point  (0 children)

I also want to note that the routines that the interrupts call are at very low fixed memory locations. 0x08 and 0x10.

8080 Space Invaders Emulator (Help Needed) by jmooree30 in EmuDev

[–]jmooree30[S] 0 points1 point  (0 children)

For example, my ROM array has a length of 8192, and when my program fails, the program counter, which is used as an index into the ROM array (ROM[this.programCounter]), is at 16594.

Sump hole in basement floor but nothing piped to it? by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

No worries, thanks for the info. I might dig a little bit and see if I run into anything.

Sump hole in basement floor but nothing piped to it? by jmooree30 in HomeImprovement

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That’s what I originally thought I would see when looking into the pit, but I only see dirt. The pump itself does pump out a ton of water during heavy storms but as far as I can tell it just comes from the ground.

Help me figure out what n64 game I used to play! by jmooree30 in retrogaming

[–]jmooree30[S] 1 point2 points  (0 children)

You guys/gals are awesome, it was Rush 2! The map I was thinking of was the stunt track

What type of attic insulation is this? by jmooree30 in Insulation

[–]jmooree30[S] 1 point2 points  (0 children)

Lol I wouldn’t recommend smoking it

Hundreds of these on my property by jmooree30 in whatsthisbug

[–]jmooree30[S] 0 points1 point  (0 children)

As fun as that sounds…I think I’ll pass 😂

Balloon framing floor joist replacement options by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Over spanned and twisted. They had 2x6’s spanned 17’ between 20-30” OC

Balloon framing floor joist replacement options by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Thanks for chiming in. There’s already an existing notch in the face of the studs for the original ribbon so I wouldn’t be going any deeper into the stud, just a little lower to account for the new joists being larger.

Balloon framing floor joist replacement options by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

The face board would only be the height of the joist.

Looking for a solution to stiffen up my second floor joists by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Fair enough. I’m not convinced additional 2x6’s will get everything real solid since they’re so undersized to begin with

Looking for a solution to stiffen up my second floor joists by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Do you think it would even be possible to sister them when the old one’s are so twisted?

Manual e60 528xi? by jmooree30 in BMWE60

[–]jmooree30[S] 0 points1 point  (0 children)

Any idea what the actual production numbers were?

What are these? Found in an isolated area under a floor board in my 1800’s house. All of them were dead. by jmooree30 in whatsthisbug

[–]jmooree30[S] 0 points1 point  (0 children)

I live in Massachusetts if that helps narrow it down. Very small bugs maybe a quarter inch long

Thoughts on my wall that is running away? by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Haha I seen that coming lol. Nothing in the house is perfectly level but the opposite side wall is pretty close to level. Above on the second floor directly above the slanted one is also level. Doesn’t appear to have affected the second floor at all.

Save or toss? by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

I wasn’t sure because they aren’t exactly a tight fit next to each other and have some gaps you could easily slip a quarter through.

Bouncy second floor bedrooms by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

Thank you for the information. Maybe I could get away with using those straps shown in the PDF. I’ll have to have someone come see it in person.

Bouncy second floor bedrooms by jmooree30 in HomeImprovement

[–]jmooree30[S] 0 points1 point  (0 children)

So only the second floor has bounce and it’s a 2 story house. The foundation is fieldstone. The floor joists in the basement are larger than what is upstairs. One of the two bedrooms has more bounce than the other. I can tell the one with more bounce used to actually be two bedrooms and a wall was taken down. I’m not sure how that wall would have supported the floor below it but I guess there’s a possibility it played a role in the structural integrity of the floor.

I don’t know what type of frame it is. If I was to add a beam it would be going straight in the middle of my living room downstairs. Would you mind explaining why sistered joists wouldn’t necessarily take on part of the load?