What games
Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? - Yahoo! Answers - Got a question? Someone out there knows the answer. Tryit now.
RE: What games
;) anything is possible .. just have to change the way u think about coding and stay away from systems .. ie sprite systems / scrolling systems make ever function bespoked to that task .. ie make a sprite cutter that loads data directly instead of reading from a ram location n writing to screen ie .. HL = screen addre (HL) , 0xff inc l (HL) , 0x7f inc l etc is far quicker than ld a,(de) ld (hl),a inc e (if u can get away with having 256 byte sprite data (8x8 are this u see hence there popular)) inc l (till next line that is ;)) Just means u have to write sprite cutters to output the source code .. then each sprite draw will be a jump table call C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Calvin Allett Sent: 20 May 2007 10:46 To: sam-users@nvg.ntnu.no Subject: What games Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? _ Yahoo! Answers - Got a question? Someone out there knows the answer. Try http://uk.answers.yahoo.com/;_ylc=X3oDMTEzaDRkZGdlBF9TAzIxMTQ3MTcxOTAEc2VjA 01haWwEc2xrA3RhZ2xpbmVz it now.
RE: What games
Chris, Is this also true for music? Would it have any direct benefit? Howard (still reading the list in the background) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris White Sent: 20 May 2007 11:14 To: sam-users@nvg.ntnu.no Subject: RE: What games ;) anything is possible .. just have to change the way u think about coding and stay away from systems .. ie sprite systems / scrolling systems make ever function bespoked to that task .. ie make a sprite cutter that loads data directly instead of reading from a ram location n writing to screen ie .. HL = screen addre (HL) , 0xff inc l (HL) , 0x7f inc l etc is far quicker than ld a,(de) ld (hl),a inc e (if u can get away with having 256 byte sprite data (8x8 are this u see hence there popular)) inc l (till next line that is ;)) Just means u have to write sprite cutters to output the source code .. then each sprite draw will be a jump table call C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Calvin Allett Sent: 20 May 2007 10:46 To: sam-users@nvg.ntnu.no Subject: What games Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? _ Yahoo! Answers - Got a question? Someone out there knows the answer. HYPERLINK http://uk.answers.yahoo.com/;_ylc=X3oDMTEzaDRkZGdlBF9TAzIxMTQ3MTcxOTAEc2VjA 01haWwEc2xrA3RhZ2xpbmVzTry it now. No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 19/05/2007 13:52 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 19/05/2007 13:52
RE: What games
not to sure on music .. but .. reading n writing to ram was always its contention .. mostly the screen banks .. if music and player was kept in a sep bank then i would assume it have little benifit .. depends on the size of code that was outputed C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tobermory Sent: 20 May 2007 12:17 To: sam-users@nvg.ntnu.no Subject: RE: What games Chris, Is this also true for music? Would it have any direct benefit? Howard (still reading the list in the background) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris White Sent: 20 May 2007 11:14 To: sam-users@nvg.ntnu.no Subject: RE: What games ;) anything is possible .. just have to change the way u think about coding and stay away from systems .. ie sprite systems / scrolling systems make ever function bespoked to that task .. ie make a sprite cutter that loads data directly instead of reading from a ram location n writing to screen ie .. HL = screen addre (HL) , 0xff inc l (HL) , 0x7f inc l etc is far quicker than ld a,(de) ld (hl),a inc e (if u can get away with having 256 byte sprite data (8x8 are this u see hence there popular)) inc l (till next line that is ;)) Just means u have to write sprite cutters to output the source code .. then each sprite draw will be a jump table call C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Calvin Allett Sent: 20 May 2007 10:46 To: sam-users@nvg.ntnu.no Subject: What games Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? _ Yahoo! Answers - Got a question? Someone out there knows the answer. Try http://uk.answers.yahoo.com/;_ylc=X3oDMTEzaDRkZGdlBF9TAzIxMTQ3MTcxOTAEc2VjA 01haWwEc2xrA3RhZ2xpbmVz it now. No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 19/05/2007 13:52 No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 19/05/2007 13:52
Re: What games
not to sure on music .. but .. reading n writing to ram was always its contention .. mostly the screen banks .. if music and player was kept in a sep bank then i would assume it have little benifit .. depends on the size of code that was outputed You'll have contention wherever you stick it in memory. Really, to speed it up you'll have to look at your player code and try to get that as efficient as possible as it'll be running every single frame. Instead of processing a music file every frame and calculating values for the SAA registers on the fly, you could have all the register data ready in chucks to be OUT'd every frame, although it would eat up more RAM you would benefit from a faster playback routine. Chris - am I right in thinking that you (and perhaps Cookie) had written a fast e-tracker player? Colin == Quazar : Hardware, Software, Spares and Repairs for the Sam Coupe 1995-2007 - Celebrating 12 Years of developing for the Sam Coupe Website: http://www.samcoupe.com/
RE: What games
Nothing to do with me gov .. But yeah I recall cookie doing some tweeking around I that area .. Never sure if it ever was a full player or just a example of inner loops C -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Colin Piggot Sent: 20 May 2007 14:10 To: sam-users@nvg.ntnu.no Subject: Re: What games not to sure on music .. but .. reading n writing to ram was always its contention .. mostly the screen banks .. if music and player was kept in a sep bank then i would assume it have little benifit .. depends on the size of code that was outputed You'll have contention wherever you stick it in memory. Really, to speed it up you'll have to look at your player code and try to get that as efficient as possible as it'll be running every single frame. Instead of processing a music file every frame and calculating values for the SAA registers on the fly, you could have all the register data ready in chucks to be OUT'd every frame, although it would eat up more RAM you would benefit from a faster playback routine. Chris - am I right in thinking that you (and perhaps Cookie) had written a fast e-tracker player? Colin == Quazar : Hardware, Software, Spares and Repairs for the Sam Coupe 1995-2007 - Celebrating 12 Years of developing for the Sam Coupe Website: http://www.samcoupe.com/
RE: What games
Surely 8x8 was 64 bytes ;) (or 32 in mode 4). But yes direct writing is the only way. Although its a pain to do clipping still, a well placed ret always does the trick i found J From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris White Sent: 20 May 2007 11:31 To: Adrian Subject: RE: What games ;) anything is possible .. just have to change the way u think about coding and stay away from systems .. ie sprite systems / scrolling systems make ever function bespoked to that task .. ie make a sprite cutter that loads data directly instead of reading from a ram location n writing to screen ie .. HL = screen addre (HL) , 0xff inc l (HL) , 0x7f inc l etc is far quicker than ld a,(de) ld (hl),a inc e (if u can get away with having 256 byte sprite data (8x8 are this u see hence there popular)) inc l (till next line that is ;)) Just means u have to write sprite cutters to output the source code .. then each sprite draw will be a jump table call C From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Calvin Allett Sent: 20 May 2007 10:46 To: sam-users@nvg.ntnu.no Subject: What games Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? Yahoo! Answers - Got a question? Someone out there knows the answer. Try it now http://uk.answers.yahoo.com/;_ylc=X3oDMTEzaDRkZGdlBF9TAzIxMTQ3MTcxOTAEc 2VjA01haWwEc2xrA3RhZ2xpbmVz . APB Computer Services Ltd. Registered Address: 3 Springfield, Trevadlock, Congdons Shop, Launceston, Cornwall, PL15 7PW. Registration Number: 4942193. V.A.T. No: 826 0005 70 This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
RE: What games
doh i been in work for 4bytes per pixel far to long lolol , but yeah clipping is a bit of a nightmare .. :D C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adrian Brown Sent: 20 May 2007 15:14 To: sam-users@nvg.ntnu.no Subject: RE: What games Surely 8x8 was 64 bytes ;) (or 32 in mode 4). But yes direct writing is the only way. Although its a pain to do clipping still, a well placed ret always does the trick i found J From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris White Sent: 20 May 2007 11:31 To: Adrian Subject: RE: What games ;) anything is possible .. just have to change the way u think about coding and stay away from systems .. ie sprite systems / scrolling systems make ever function bespoked to that task .. ie make a sprite cutter that loads data directly instead of reading from a ram location n writing to screen ie .. HL = screen addre (HL) , 0xff inc l (HL) , 0x7f inc l etc is far quicker than ld a,(de) ld (hl),a inc e (if u can get away with having 256 byte sprite data (8x8 are this u see hence there popular)) inc l (till next line that is ;)) Just means u have to write sprite cutters to output the source code .. then each sprite draw will be a jump table call C _ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Calvin Allett Sent: 20 May 2007 10:46 To: sam-users@nvg.ntnu.no Subject: What games Just a quick thought, What games could be accomplished on the ol` SAM, everybody always says about how underpowered the SAM is in Mode 4, but when I`m playing more Spectrum games recently, I`m getting a certain shock as to how many games ran at perhaps lower than 8 fps, and yet it doesn`t matter, perhaps I should have asked what games could be done. Could Avenger be done at a similar framerate, for example? _ Yahoo! Answers - Got a question? Someone out there knows the answer. Try http://uk.answers.yahoo.com/;_ylc=X3oDMTEzaDRkZGdlBF9TAzIxMTQ3MTcxOTAEc2VjA 01haWwEc2xrA3RhZ2xpbmVz it now. _ APB Computer Services Ltd. Registered Address: 3 Springfield, Trevadlock, Congdons Shop, Launceston, Cornwall, PL15 7PW. Registration Number: 4942193. V.A.T. No: 826 0005 70 _ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
