QUIKMAN 2008 for the unexpanded VIC 20

wimoos · Post by **wimoos** » Fri Sep 16, 2011 2:38 am

Why not do a BPL ? This is known less than a couple of instructions earlier.

Regards,

Wim.

matsondawson · Post by **matsondawson** » Fri Sep 16, 2011 3:02 am

wimoos wrote:Why not do a BPL ? This is known less than a couple of instructions earlier.
.

Even better!

matsondawson · Post by **matsondawson** » Fri Sep 16, 2011 3:05 am

For the SSSINIT:
I'm saying you don't need the CLCs, as the ASL will CLC, and since you now ASL once before the ADC you'll need to double the ADC value.

Code: Select all

SSSINIT:
		; SSS geometry
		LDA VIC+$02
		AND #$1F
		STA PLAYCOLS
		ASL
		ADC #$04
		ASL
		ASL
		STA SSSCLIPX
		LDA VIC+$03
		AND #$7E
		LSR
		STA PLAYROWS
		ASL
		ADC #$04
		ASL
		ASL
		STA SSSCLIPY

matsondawson · Post by **matsondawson** » Fri Sep 16, 2011 3:55 am

Can save 2 bytes, and 4 cycles by using a table lookup in SSSIMAGE.

Edit: I've modified the code to remove the PHA and PLA... should double check this is correct though. This should save another 3 cycles (total of 7!)

Code: Select all

SSSIMAGE: 
      TAY
      ASL 
      ASL 
      ASL            ; x8 
      TAX            ; save image low byte 
      TYA
      ROL            ; set carry bit
      LDY #0         ; point to custom chars 
      BCC @cont      ; is character reversed? 
      INY 
@cont:ROL 
      ROL 
      ROL 
      AND #%00000011 
      ORA table, y   ; 4 
      TAY            ; save image high byte 
      RTS 

table:  dcb $1C, $80

rhurst · Post by **rhurst** » Thu Sep 22, 2011 11:53 am

@MODERATOR: post #137 thru this previous one should really be moved to Programming: Software sprites? thread. TIA!

After all that, Quikman+8k decreased 28-bytes in size.

You can download the latest program binary, archive, or review the repository. Enjoy!

Spectrum · Post by **Spectrum** » Thu Oct 13, 2011 8:31 am

Rhurst,

I am a big FAN of Pac Man, and I totally LOVE Jelly Monsters.
So I am always cautious when I approach a Pac Man clone.
But...wow.... Quickman is great!
I'm playing it in the 8k version. Right now only on the VICE, on my Mac (sigh, I still have to resurrect my Vic) but I've to say that it looks amazing!
You really did a great job. I feel I'll become addicted to your game.
Graphic, controls and sound are very good, although I'm sure that on the real Vic the sound and music will look better. VICE on Mac isn't perfect about Vic sound emulation. Now I surely have to give a try to Omega Fury...

I would like to spend some words for REPEL. I know that it isn't a program you wrote, but you posted it, right?
Well, I think it is a very good Space Invaders and I truly find it very addictive. I began to play it last night and I couldn't stop to play. It made me re-discover the potentiality of our good ol' Vic and of simple, brilliant concepts. Great work, really!

rhurst · Post by **rhurst** » Thu Oct 13, 2011 6:26 pm

Thanks for the high praises, always a good thing to hear from someone that got that old playable video game enjoyment... very cool.

Yes, REPEL was a game program from a high school friend, Darren Lee, back in the day. He helped me understand the significance of programming in machine language, and I loaned him my VIC Machine Language monitor cartridge so he could complete REPEL. It was my gift back from him, and I had kept it on cassette since... until about 3 years ago I was able to transfer it over to PC digital format suitable for VICE.

Had you the opportunity to try my recent Sprite Invaders? Unlike REPEL, it uses memory expansion to leverage "hi-res" for everything and has a couple of modes of play with 1 or 2 player options. I think its nifty.

Spectrum · Post by **Spectrum** » Fri Oct 14, 2011 12:29 am

rhurst wrote:Thanks for the high praises, always a good thing to hear from someone that got that old playable video game enjoyment... very cool.

Yes, REPEL was a game program from a high school friend, Darren Lee, back in the day. He helped me understand the significance of programming in machine language, and I loaned him my VIC Machine Language monitor cartridge so he could complete REPEL. It was my gift back from him, and I had kept it on cassette since... until about 3 years ago I was able to transfer it over to PC digital format suitable for VICE.

Had you the opportunity to try my recent Sprite Invaders? Unlike REPEL, it uses memory expansion to leverage "hi-res" for everything and has a couple of modes of play with 1 or 2 player options. I think its nifty.

Well, I think this is a good story. It's so nice when we re-discover treasures or gifts from old friends. Expecially when the gifts are fruits of their creativity. Being a comic-artist (and having friends who are comic artists too) I understand it very well. It happened to me to find, among the many, many pieces I've got, some old drawing or panel from a comic that a friend gave me long ago, and it recalled such good memories to me.
Perhaps it was the same for you when you "resurrected" Repel.

No, I didn't give yet a try to your Sprite Invaders. I got "Avenger" on cartridge on my original Vic. But of course I'll get it and I will try it on VICE this week end.
Now I really want to learn how to transfer the prg files to tape (if possible) 'cause I want to play on the real Vic the games released on Denial. So, I will go to read the relative thread...

orion70 · Post by **orion70** » Fri Oct 14, 2011 12:35 am

(OT)

Spectrum wrote:... on my Mac...

Aha! I should have imagined it!
C64 users --> WIN
Sp***** (sorry, can't write it) ---> MAC

Spectrum · Post by **Spectrum** » Fri Oct 14, 2011 1:01 am

orion70 wrote:(OT)

Spectrum wrote:... on my Mac...
Aha! I should have imagined it!
C64 users --> WIN
Sp***** (sorry, can't write it) ---> MAC

Right, right!!! hahahaha!

Witzo · Post by **Witzo** » Thu Feb 16, 2012 1:03 pm

orion70 wrote:(OT)

Spectrum wrote:... on my Mac...
Aha! I should have imagined it!
C64 users --> WIN
Sp***** (sorry, can't write it) ---> MAC

I beg to disagree:
VIC --> C128 --> Amiga --> Mac.
Strangely enough I never owned a C64 nor a PC.

orion70 · Post by **orion70** » Fri Feb 17, 2012 5:21 am

The exception always proves the rule...

I'm joking. It was only to say: "cool people" did prefer niche computers.

Spectrum · Post by **Spectrum** » Fri Feb 17, 2012 5:25 am

OT: to be honest, I always loved the Spectrum over the 64 (although before to have a Speccy I wished a C64...)

In any case, I had a PC for many years and, tired of Microsoft DOS and Windows I turned to a Mac a couple of years ago...

But I know Orion is just joking.

rhurst · Post by **rhurst** » Mon Jan 27, 2014 1:53 pm

More than 2-years later, something popped into my head last night about Quikman and lead me to review my code during the train commute ride in. A run-time change of SPRITEDEF to enable float X OR Y, instead of allocating it entirely during SSSCREATE as float X AND Y -- the result of that alleviated 20 VIC graphic characters to re-use. Those characters and a little coding space allowed for some visible improvements to the game, but keeping it to only 8K memory expansion:

Really cool Pac-Man style font for numbers, 1UP, 2UP, and !
1UP or 2UP flashes
new pink doorway to monster cage
sound feedback on PLAYERS and LEVEL change

This updated 2014 version is zipped and available to download. I will commit the source code to its SVN repository later today (hopefully). You can also play the game online courtesy of JarVIC.

Alan · Post by **Alan** » Mon Jan 27, 2014 4:27 pm

rhurst wrote:This updated 2014 version is zipped and available to download. I will commit the source code to its SVN repository later today (hopefully). You can also play the game online courtesy of JarVIC.

Two things: 1- Thank you so much for this and your other amazing bits of VIC magic. 2- the download link returns 'Download does not exist.'

Denial

QUIKMAN 2008 for the unexpanded VIC 20

Quickman and Repel

Re: Quickman and Repel

Re: Quickman and Repel

Re: Quickman and Repel

Re: QUIKMAN 2008 for the unexpanded VIC 20

Re: QUIKMAN 2008 for the unexpanded VIC 20