| Author |
Message |
Forum: Forth Topic: 65816 indirect threaded NEXT |
| dclxvi |
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Posted: Fri Feb 04, 2005 7:54 am
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Replies: 8
Views: 14231
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| ... which four instructions he has in mind there, but I'd thought point out that a two instruction indirect threaded NEXT routine is possible on the 65816, namely: PLX JMP (0,X) X is Forth's W register, and S (the 65816 stack pointer!) is Forth's IP register. This NEXT routine is only 11 ... |
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Forum: Programming Topic: GCC porting on 6502-65816 |
| pipettas |
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Posted: Thu Sep 09, 2004 10:21 pm
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Replies: 4
Views: 5151
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| Hi, I'm looking for GCC porting on 6502 or 65816 processor (croscompiler running under Windows OS). I read that someone is aware about a version of this crosscompiler (not officially acceptet by GNU) Is somebody so kind to tell me where I can ... |
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Forum: Forth Topic: update on 65816 Forth source |
| GARTHWILSON |
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Posted: Fri Aug 27, 2004 6:59 am
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Replies: 0
Views: 5479
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| Wally Daniels who has been using my 65816 Forth source on a 65265 found a problem with the DOES> and I just sent out a correction to all those to whom I could remember having sent the '816 Forth source. If you received my '816 Forth source ... |
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Forum: Hardware Topic: MMU units for 6502 and 65816 |
| ccureau |
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Posted: Wed Aug 18, 2004 1:16 pm
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Replies: 52
Views: 36166
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| Hi there! I started wondering this morning while thinking about how to tackle the operating system for the WDC 65816 project my friends and I are working on about memory protection and management. I'd like to add a MMU unit to the board somewhere, but I'm not sure what is available. ... |
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Forum: Hardware Topic: 65816 Homebrew comp, V1 |
| Tancor |
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Posted: Sun Aug 01, 2004 10:14 pm
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Replies: 4
Views: 3348
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| ... I had been playing so long with the 6502's and such on small designs for single uses, I thought it would be fun to do a useable computer with the 65816. I know it has been done by many others before, and probably better then what I have done in many instances, but a big part of it was a "can I ... |
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Forum: Programming Topic: 65816 PHP and PLP commands. |
| Tancor |
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Posted: Sat Apr 24, 2004 12:05 am
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Replies: 5
Views: 4394
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| Ok, I wasn't sure if this little trick works or not, but.... Let's say I have a function that is meant to work in 8 bit mode. and I do: PHA PHX PHY PHP SEP #00110000B . . Function code . PLP PLY PLX PLA RTS Will PHP/PLP save the previous state of the registers in terms of whether they were in 8bit o... |
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Forum: Hardware Topic: Interrupts on a 6502 or 65816 |
| kc5tja |
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Posted: Tue Apr 06, 2004 6:24 pm
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Replies: 10
Views: 5033
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| Suppose for the sake of argument that I just so happen to be using a new kind of UART designed to run specifically with the 6502 and 65816 microprocessors. However, the designer of said UART decided to use a PH2-synchronized pulse for the interrupt instead of a constant level, usually cleared ... |
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Forum: EhBASIC Topic: ehBasic on 65816 |
| Tancor |
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Posted: Mon Apr 05, 2004 4:00 pm
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Replies: 67
Views: 98374
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| Hi All and Leee, I'm wondernig if anyone has used the ehBasic on a 65816 processor and what kind of succssess there was... Does it need to be in emulation mode to work? Can ehbasic address memory beyond 64K up to the max 16meg? Also, I was wondering, how ... |
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Forum: Hardware Topic: 65816-based PC |
| jdeboy |
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Posted: Sat Feb 07, 2004 3:56 pm
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Replies: 13
Views: 6768
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| ... of course many different wishes and opinions and therefore after about one year no practical results. :( So I have designed a small PC with a WDC 65816, running at 14 MHz. After RESET it is slowed down by the factor 8 to allow the ROM to be copied into RAM. After that the system can be run at ... |
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Forum: Hardware Topic: Wanted 65816 |
| Edzard |
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Posted: Mon Feb 02, 2004 11:42 am
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Replies: 2
Views: 2337
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| Hello to you all, I'm building a new computersystem, based on OHIO-DOS (DOS65), which has a 65816 CPU card. It's based on a older design from the Elektor magazine. Can someone sell me some 65816, or point me in some direction where I can buy/find these IC's? Tanks, Best ... |
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Forum: Hardware Topic: Wanted 65816 |
| Edzard |
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Posted: Mon Feb 02, 2004 11:42 am
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Replies: 0
Views: 1890
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| Hello to you all, I'm building a new computersystem, based on OHIO-DOS (DOS65), which has a 65816 CPU card. It's based on a older design from teh Elektor magazine. Can someone sell me some 65816, or point me in some direction where I can buy/find these IC's? Tanks, Best ... |
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Forum: Hardware Topic: Replacing a 6502 with 65816 |
| Euphoric |
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Posted: Tue Dec 23, 2003 11:11 am
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Replies: 118
Views: 45753
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| Hello there, I'm in need of 65xx gurus... I've tried to build a "plug&play" 40-pin W65C816S module for my Oric (the Oric is a 6502 home-computer from Tangerine), but unfortunately it doesn't seem to work, I guess I have some timing problems... :( I started by comparing the pinouts of the old NMo... |
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Forum: General Discussions Topic: 65802 vs. 65816 vs. 65C02, for emulator programming... |
| usotsuki |
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Posted: Tue Mar 18, 2003 11:46 pm
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Replies: 8
Views: 7034
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| In my Dapple ][ project it looks like I may need to add support for the 65802 CPU in order to run the Apple //c+ ROM set. :roll: I am STFW right now for info on the '802, but what matters most is the differences from the 65C02 which I already emulate (and possibly the 65SC02 which I also emulate). W... |
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Forum: DelphiForums: 6502 Topic: [60] Connecting RAM to a 65816 |
| rich54321 |
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Posted: Sun Jul 23, 2000 4:01 pm
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Replies: 2
Views: 2398
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I want to interface a 6502/65c02 or 65816 to 64k RAM. Looking for schematics. This is for a coprocessor for my robot
aiiadict@hotmail.com
Rich |
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