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updates to redbook info.org

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Zellyn Hunter 2014-06-09 17:39:29 -07:00
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@ -5,24 +5,17 @@
* Memory map of the Apple II ROMs
http://www.easy68k.com/paulrsm/6502/MEMMAP.HTM
| + | $F800-$FFFF | Monitor. Handles screen I/O and keyboard input. Also has a |
| | monitor.asm | disassembler, memory dump, memory move, memory compare, step and trace |
| | | functions, lo-res graphics routines, multiply and divide routines, and |
| | | more. This monitor has the cleanest code of all the Apple II |
| | | monitors. Every one after this had to patch the monitor to add |
| | | functions while still remaining (mostly) compatible. Complete source |
| | | code is in the manual. |
| | $D000-D7FF | Programmer's Aid #1--missing from the original Apple II, this is a ROM |
| | | add-on Apple sold that contains Integer BASIC utilities such as |
| | | high-resolution graphics support, renumber, append, tape verify, |
| | | music, and a RAM test. Complete source code is in the manual. |
| | | |
| + | $F689-F7FC | Sweet-16 interpreter. Sweet-16 code has been benchmarked to be about |
| | sweet16.asm | half the size of pure 6502 code but 5-8 times slower. The renumber |
| | | routine in the Programmer's Aid #1 is written in Sweet-16, where small |
| | | size was much more important than speed. Complete source code is in |
| | | the manual. |
| | $D800-DFFF | Empty ROM socket. There was at least one third party ROM add-on. |
| | | |
| + | $F500-F63C | Mini-assembler. This lets you type in assembly code, one line at a |
| | $F666-F668 | time, and it will assemble the proper bytes. No labels or equates are |
| | miniasm.asm | supported--it is a MINI assembler. Complete source code is in the |
| | | manual. |
| | $E000-F424 | Integer BASIC by Woz (Steve Wozniak, creator of the Apple II). "That |
| | intbasic.asm | BASIC, which we shipped with the first Apple II's, was never |
| | | assembled--ever. There was one handwritten copy, all handwritten, all |
| | | hand assembled." Woz, October 1984. |
| | | |
| + | $F425-F4FB | Floating point routines. Woz's first plans for his 6502 BASIC included |
| | $F63D-F65D | floating point, but he abandoned them when he realized he could finish |
@ -30,17 +23,64 @@ http://www.easy68k.com/paulrsm/6502/MEMMAP.HTM
| | | they are not called from anywhere. Complete source code is in the |
| | | manual. |
| | | |
| | $E000-F424 | Integer BASIC by Woz (Steve Wozniak, creator of the Apple II). "That |
| | intbasic.asm | BASIC, which we shipped with the first Apple II's, was never |
| | | assembled--ever. There was one handwritten copy, all handwritten, all |
| | | hand assembled." Woz, October 1984. |
| + | $F500-F63C | Mini-assembler. This lets you type in assembly code, one line at a |
| | $F666-F668 | time, and it will assemble the proper bytes. No labels or equates are |
| | miniasm.asm | supported--it is a MINI assembler. Complete source code is in the |
| | | manual. |
| | | |
| | $D800-DFFF | Empty ROM socket. There was at least one third party ROM add-on. |
| + | $F689-F7FC | Sweet-16 interpreter. Sweet-16 code has been benchmarked to be about |
| | sweet16.asm | half the size of pure 6502 code but 5-8 times slower. The renumber |
| | | routine in the Programmer's Aid #1 is written in Sweet-16, where small |
| | | size was much more important than speed. Complete source code is in |
| | | the manual. |
| | | |
| | $D000-D7FF | Programmer's Aid #1--missing from the original Apple II, this is a ROM |
| | | add-on Apple sold that contains Integer BASIC utilities such as |
| | | high-resolution graphics support, renumber, append, tape verify, |
| | | music, and a RAM test. Complete source code is in the manual. |
| + | $F800-$FFFF | Monitor. Handles screen I/O and keyboard input. Also has a |
| | monitor.asm | disassembler, memory dump, memory move, memory compare, step and trace |
| | | functions, lo-res graphics routines, multiply and divide routines, and |
| | | more. This monitor has the cleanest code of all the Apple II |
| | | monitors. Every one after this had to patch the monitor to add |
| | | functions while still remaining (mostly) compatible. Complete source |
| | | code is in the manual. |
| E000-F424 | | intbasic |
| F425-F4FB | | fp (1) |
| F4FC-F4FF | 4 | ? - FF FF FF FF |
| F500-F63C | | miniasm (1) |
| F63D-F65D | | fp (2) |
| F65E-F665 | 8 | ? - FF FF FF FF FF FF FF FF |
| F666-F668 | | miniasm (2) |
| F669-F688 | 32 | ? - see below |
| F689-F7FC | | sweet16 |
| F7FD-F7FF | 3 | ? F6 FF FF |
| F800-FFFF | | monitor |
** F669-F688
F669- 84 58 STY $58
F66B- 86 57 STX $57
F66D- 85 56 STA $56
F66F- 08 PHP
F670- 68 PLA
F671- 85 59 STA $59
F673- BA TSX
F674- E8 INX
F675- E8 INX
F676- BD 00 01 LDA $0100,X
F679- 0A ASL
F67A- 0A ASL
F67B- 0A ASL
F67C- 0A ASL
F67D- 60 RTS
F67E- A4 58 LDY $58
F680- A6 57 LDX $57
F682- A5 59 LDA $59
F684- 48 PHA
F685- A5 56 LDA $56
F687- 28 PLP
F688- 60 RTS
* Misc
@ -53,6 +93,10 @@ ftp://ftp.apple.asimov.net/pub/apple_II/documentation/programming/6502assembly/A
Apple II Original ROM Information
http://www.downloads.reactivemicro.com/Public/Users/David_Craig/Apple2OriginalROMInfo.TXT
Complete sources:
http://mosher.mine.nu/apple2/site/
* Differences found
The autostart ROM listing has $FFFE:FFFF pointing to IRQ ($FA40).
The apple2+.rom file I have points to $FF59 (OLDRST).