jxc@rayssd.UUCP (03/12/87)
>In article <8703081002.AA13809@cory.Berkeley.EDU> dillon@CORY.BERKELEY.EDU >(Matt Dillon) writes: >> In fact, 16Meg is all you can stick in a Mac II... not 2 gig. (This >>is not a flame. After all, the Amiga's max is 8Meg). And rar@auc.UUCP (Rodney Ricks) replies: >Hold on a second. Yes, in a standard Amiga 1000, only about 8.5 Meg is left >available for RAM, but this limit is only because of the 68000 processor. ===================================================== (You're getting warmer...) The MEMORY MAP for the Amiga has 8.5 Meg RESERVED for RAM. This mapping was determined by Commodore-Amiga. The total address space of the 68000 is actually 24 bits (16 Meg). For the A1000 memory map you can look at the original article previewing the Amiga 1000 in BYTE. You will see that C-A reserved various sections of the total address space for devices and other (some unnamed) purposes. The 8.5 Mbyte limit is C-A's, not the 68000's. It is likely that the memory map also exists in some form in the Technical Manuals. The Amiga's addressable memory is not limited by this 8.5 Mb mapping, however. We have already seen people slopping extra memory into the reserved Chip address space. Other reserved areas could be used for memory also (at your own risk). ______________________________________________________________ | Jeffrey Jay Clesius, Raytheon Submarine Signal Division | | 1847 West Main Road, Mail Stop 188 | | Portsmouth, RI 02871-1087 (401) 847-8000 (X4015) | | { allegra | gatech | mirror | raybed2 } -----\ | | { linus | ihnp4 | uiucdcs } --------------->!rayssd!jxc | |______________________________________________________________| "Just say... 'NO, NO, NO!'" Legend for text lines: >> -Matt (via Rodney) > Rodney Jeff