Jump to content
IGNORED

This explains a lot of things...


Gregory DG

Recommended Posts

  • 2 weeks later...

I just want to make something clear in case some are reading this and don't know; ZylonBane and brpocock are both right, as CBM is Commodore. (Commodore Business Machines). Atari did have their own custom 6502 AFTER the 800, not sure if they designed it themselves or not. But the 400/800 and Apple II (and possibly the PET/Vic20/C64, one or more ,not sure though) both had the same original 6502. With the XL/XE line, Atari had a custom 6502. Hopefully a commodore fan can clear up which processors the PET/VIC20/C64 had in them for sure...though I would imagine that at least the PET had the original too.

Link to comment
Share on other sites

CBM CPU's:

 

KIM: 6501 and 6502. The 6501 was "too close" to the M6800 so it never(?) got marketed to the general public because of Motorola lawsuits.

 

PET's: Mostly 6502 (but there were a LOT of different PET variants, so I wouldn't doubt some variations)

 

VIC-20: 6502

 

C=64: 6510 = 6502 + on-board 8-bit I/O port

 

C=128: 8502 + Z80A. The 8502 is a 6502 souped up to share the bus 3 ways with the VIC-II (video coprocessor) and the Z80A, or to run at 2MHz with just the 8502 and Zilog chips (VIC-II disabled), using the "EGA-compatible" display only. (The left screen goes blank in 2MHz mode)

 

I think the C=16 and its more popular bastard offspring the Plus/4 were actually using the 65c02 chip?

 

Amiga, M68k. 68020 and 68040 versions I've heard, but I don't know which Amiga models had which.

 

Apple:

 

Apple II, IIplus were definitely both 6502.

 

IIe might have varied depending on the model?

 

IIc seems to always be the 65c02.

 

IIgs was the 65816, the 6502 + 16-bit modes.

 

 

Nintendo:

 

NES: 6502

 

SNES: 65816

 

Gameboy: Z80 or Z80A?

 

GBA: Z80 for compatibility, ARM7 for native mode

 

NDS: ARM7 for GBA mode, ARM7+ARM9 both in native mode

 

N64: R4300

 

GCN: PowerPC 750e

 

 

Sears:

 

My parents' old Kenmore microwave had what I think was a 6505 CPU, but by the time I got there it was a bit skunky so it might have been 6503 or 6508. Definitely not 6502 though.

 

 

 

 

PS: Sorry for any confusion. Yes, CBM == Commodore...

Edited by brpocock
Link to comment
Share on other sites

C=128: 8502 + Z80A. The 8502 is a 6502 souped up to share the bus 3 ways with the VIC-II (video coprocessor) and the Z80A, or to run at 2MHz with just the 8502 and Zilog chips (VIC-II disabled), using the "EGA-compatible" display only. (The left screen goes blank in 2MHz mode)

 

Actually no, the VIC-II simply poos itself and fills the screen with garbage; the "fast" command from BASIC 7 blanks the screen but simply enabling 2MHz mode doesn't. A very few games use 2MHz mode during the upper and lower borders from C64 mode since there's no screen to worry about at that point, most of Andrew Braybrook's later titles have support such as Alleykat, Paradroid Turbo, Uridium Plus, and Morpheus.

 

I think the C=16 and its more popular bastard offspring the Plus/4 were actually using the 65c02 chip?

 

The Plus/4 wasn't an offspring of the C16, the two machines and two others (the 264 and unreleased 364) were developed together, share the bulk of their internals and collectively known as the 264 series - they're no more bastard offspring than the 600 was to the 400. The 264 machines all use a 7501, capable of either 0.89 or 1.76 MHz depending on mode, the latter shunts into "fast" mode during the side, upper and lower borders.

 

Amiga, M68k. 68020 and 68040 versions I've heard, but I don't know which Amiga models had which.

 

Amiga 1000, 500, 500+, 600, 1500 and 2000 are all 68000, the 3000 was a 68030 and the 1200, 4000 and 4000T have a 68020.

 

NES: 6502

 

It's a Ricoh RP2A03G; runs like a 65C02 and clocks at a tad short of 1.8MHz but there are differences... not that i've noticed but apparently there are. =-)

 

Gameboy: Z80 or Z80A?

 

It's a Z80A work-alike, i believe that the GBC uses a Sharp chip clocked at 8MHz but i forget for the original GB.

Link to comment
Share on other sites

KIM: 6501 and 6502. The 6501 was "too close" to the M6800 so it never(?) got marketed to the general public because of Motorola lawsuits.

The 6501 was pin-compatible to the 6800.

C=64: 6510 = 6502 + on-board 8-bit I/O port

Later C64 models had the 8500, a H-MOS version of the 6510.

 

C=128: 8502 + Z80A. The 8502 is a 6502 souped up to share the bus 3 ways with the VIC-II (video coprocessor) and the Z80A, or to run at 2MHz with just the 8502 and Zilog chips (VIC-II disabled), using the "EGA-compatible" display only. (The left screen goes blank in 2MHz mode)

Actually the 8502 is only the 2 MHz version of the 8500. The rest is done by the VIC-II and not the CPU.

 

I think the C=16 and its more popular bastard offspring the Plus/4 were actually using the 65c02 chip?

Like TMR said: 7501 there.

 

Amiga, M68k. 68020 and 68040 versions I've heard, but I don't know which Amiga models had which.

Like TMR said, but he made a mistake: A4000 had either 68030 or 68040.

 

Some additions might be:

 

The disk drives 1541, 1541C, 1541-II, 1551, 1570, 1571, 1581 and the drive in the C128D/C128DCR also all had a 6502. And ofcourse the 1541 compatible drives like the OC118 (Oceanic) / 9900 drive.

Link to comment
Share on other sites

Amiga, M68k. 68020 and 68040 versions I've heard, but I don't know which Amiga models had which.

Like TMR said, but he made a mistake: A4000 had either 68030 or 68040.

 

My bad, the A4000 was rare as hell over here and i would've got that right about ten years ago when i was selling 'em but that's the last time i saw one! =-( Lovely machine...

Link to comment
Share on other sites

Apple II, IIplus were definitely both 6502.

 

IIe might have varied depending on the model?

 

IIc seems to always be the 65c02.

1010302[/snapback]

 

The original Apple IIe used a 6502. The enhanced Apple IIe used a 65c02. An upgrade kit also was made available for the original IIe.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...