Need help with Chip8 emu.

Crckr hckr · April 27th, 2012, 18:27

Well after a bit of encouragement, I managed to start coding a chip 8 emu. Can someone help me debug this code. I don't see anything on the console window. Normally there is Illegal opcode:XXXX Help me. Also can someone help me with how I can do graphics?

Attached Files

Chip8.rar (39.0 KB, 3 views)

Crckr hckr · April 28th, 2012, 17:02

See attachment

Attached Files

Chip8.rar (40.6 KB, 6 views)

runawayprisoner · April 28th, 2012, 17:19

Well, what are you expecting to see in the console window? I don't see you output anything but errors and a "BEEP!" notification.

If there is nothing wrong with the code, then it shouldn't throw any of those errors around.

As for graphics, what platform are you working on specifically? The current codes are very generic.

KrossX · April 28th, 2012, 20:13

Some background thread on this: http://forums.pcsx2.net/Thread-Need-...-output-openGL

And some thread for the OP to check: http://forums.ngemu.com/showthread.php?t=114578

__________________

Crckr hckr · April 29th, 2012, 16:31

Well, I am on windows and using codeblocks. Can someone tell me how I can create a text based graphics output to the console. So it would then output a * for 1. How do I output my graphics array and output it?

runawayprisoner · April 29th, 2012, 18:38

Well, if you output text as graphics for Chip-8, trust me, it'll be very messy... and annoying to deal with.

For one, you'll need exactly 64 x 32 rows on the screen.

But if you are fixated on that, some printf functions will do. Or alternatively, you can also use C++ with cout, which has nicer readability.

Crckr hckr · April 30th, 2012, 14:42

See my code, Is my code right? Give me some better code for cout or printf().

KrossX · April 30th, 2012, 18:25

"Give me some better code" ? Code something yourself first. Since if you cannot do text output to a console...

__________________

Crckr hckr · April 30th, 2012, 20:29

Quote:

Originally Posted by KrossX

"Give me some better code" ? Code something yourself first. Since if you cannot do text output to a console...

Ow, I know that. But my problem is how can I instead of 1s and 0s use * and blank spaces. Also can I update the screen, without it scrolling down. It's just not right~}!

Attached Images

	bnjdsa.PNG (224.0 KB, 13 views)
	chip.PNG (226.7 KB, 10 views)
	chipz.PNG (222.5 KB, 9 views)

Crckr hckr · May 7th, 2012, 19:17

Well, hell yeah. I now have a working CPU core. Some screenshots attached and
source code as well.

Attached Images

	tetris.PNG (14.8 KB, 6 views)
	INVADERS.PNG (16.3 KB, 7 views)

Attached Files

Chip8.rar (42.1 KB, 3 views)

**ShendoXT** · May 7th, 2012, 20:04

Cool , nice going

Btw, any reason for switching between Win 7 and XP?

Crckr hckr · May 8th, 2012, 14:45

Quote:

Originally Posted by ShendoXT

Cool , nice going

Thanks and Well yeah, taking into consideration I am still a 14 year old...

Quote:

Originally Posted by ShendoXT

Btw, any reason for switching between Win 7 and XP?

I have a laptop with 7 and a desktop with xp, my laptop screen gives me headaches.

Bill_gates · May 9th, 2012, 03:04

glad you managed to figure things out!

__________________
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CPU: Intel pentium 4 3.0GHz
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Crckr hckr · May 9th, 2012, 19:00

Any good and easy SDL tutorials?

Purkinje · May 13th, 2012, 00:50

Quote:

Originally Posted by Crckr hckr

Any good and easy SDL tutorials?

http://www.sdltutorials.com/

__________________
[CENTER]

Crckr hckr · May 13th, 2012, 08:49

Well, I did the graphics and input, Thanks anyway.

Crckr hckr · May 13th, 2012, 14:46

Well, here if you can test it. See attachment, also see:
http://emucodeblog.blogspot.com/ and
www.youtube.com/user/CrckrHckr
Thanks, Crckr.

Attached Files

CrckrChip8.rar (138.7 KB, 1 views)

April 29th, 2012, 16:31	#5
Crckr hckr Registered User Join Date: Nov 2010 Location: Kenya Posts: 13	Graphics Well, I am on windows and using codeblocks. Can someone tell me how I can create a text based graphics output to the console. So it would then output a * for 1. How do I output my graphics array and output it?

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April 28th, 2012, 17:19	#3
runawayprisoner Level 9998 Join Date: Nov 2006 Location: Java Posts: 9,377	Well, what are you expecting to see in the console window? I don't see you output anything but errors and a "BEEP!" notification. If there is nothing wrong with the code, then it shouldn't throw any of those errors around. As for graphics, what platform are you working on specifically? The current codes are very generic.

April 28th, 2012, 20:13	#4
KrossX クロッスエクス Join Date: Mar 2006 Location: Argentina Posts: 3,645	Some background thread on this: http://forums.pcsx2.net/Thread-Need-...-output-openGL And some thread for the OP to check: http://forums.ngemu.com/showthread.php?t=114578 __________________

April 29th, 2012, 18:38	#6
runawayprisoner Level 9998 Join Date: Nov 2006 Location: Java Posts: 9,377	Well, if you output text as graphics for Chip-8, trust me, it'll be very messy... and annoying to deal with. For one, you'll need exactly 64 x 32 rows on the screen. But if you are fixated on that, some printf functions will do. Or alternatively, you can also use C++ with cout, which has nicer readability.

April 30th, 2012, 14:42	#7
Crckr hckr Registered User Join Date: Nov 2010 Location: Kenya Posts: 13	See my code, Is my code right? Give me some better code for cout or printf().

April 30th, 2012, 18:25	#8
KrossX クロッスエクス Join Date: Mar 2006 Location: Argentina Posts: 3,645	"Give me some better code" ? Code something yourself first. Since if you cannot do text output to a console... __________________

May 7th, 2012, 20:04	#11
ShendoXT Moderator Join Date: Feb 2006 Location: Croatia Posts: 4,547	Cool , nice going Btw, any reason for switching between Win 7 and XP? __________________ Shendo's software blog Core i5 2400 3.1 Ghz \| ASRock H67M \| GTX460 768Mb \| 8GB DDR3 1333 \| 1500 Gb HDD Grundig VLC 7121 C (1080p) 32" \| Razer DeathAdder \| Logitech G110 \| Windows 7 x64 Don't PM or ask me about VMP-MCR conversions. I will ignore you if you do.

May 9th, 2012, 03:04	#13
Bill_gates Linux's worst nightmare.. Join Date: Feb 2004 Location: USA Posts: 1,505	glad you managed to figure things out! __________________ OS: WinXP Professional Service Pack 3 CPU: Intel pentium 4 3.0GHz Video: Nvidia Geforce 8400GS Sound: ASUS Xonar DS 7.1 Channels 24-bit 192KHz PCI Interface Audio Card Memory: 512 MB HD: [C:] 140.36/449.09 GB Connection: Marvell Yukon 88E8053 PCI-E Gigabit Ethernet Controller

May 9th, 2012, 19:00	#14
Crckr hckr Registered User Join Date: Nov 2010 Location: Kenya Posts: 13	Any good and easy SDL tutorials?

May 13th, 2012, 08:49	#16
Crckr hckr Registered User Join Date: Nov 2010 Location: Kenya Posts: 13	Well, I did the graphics and input, Thanks anyway.