Caple C871i Bedienungsanleitung PDF herunterladen (Seite 5)

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101

Apple II Computer Info

|? R7 | $C018 / 49176 | 80STORE ON(1) OR OFF(0) |

| R7 | $C01C / 49180 | VEIW PAGE 2(1) OR 1(0) |

+--------+---------------+-------------------------+

| W | $C07E / 49278 | ENABLE DHIRES |

|de W | $C07F / 49279 | DISABLE DHIRES |

| R/W | $C05E / 49246 | DHIRES ON |

|de R/W | $C05F / 49247 | DHIRES OFF |

| R7 | $C07E / 49278 | DHRS ENABLED 1=Y 0=N |

| R7 | $C07F / 49279 | DHIRES ON(1) OR OFF(0) |

+--------+---------------+-------------------------+

| W | $C00C / 49164 | 40 COLUMN |

| W | $C00D / 49165 | 80 COLUMN |

+--------+---------------+-------------------------+

| R7 | $C01F / 49183 | VIEWING 40(0) OR 80(1) |

+--------+---------------+-------------------------+

| R7 | $C068 / 49256 | 80/40 DOWN(1) OR UP(0) |

| W | $C073 / 49267 | RAM BANK (0-15) |

+--------+---------------+-------------------------+

HARDWARE LOCATIONS

+-------+-------+---------------------------+

| DEC | HEX | USE |

+-------+-------+---------------------------+

| 49280 | $C080 | PHASE 0 OFF |

| 49281 | $C081 | PHASE 0 ON |

| 49282 | $C082 | PHASE 1 OFF |

| 49283 | $C083 | PHASE 1 ON |

| 49284 | $C084 | PHASE 2 OFF |

| 49285 | $C085 | PHASE 2 ON |

| 49286 | $C086 | PHASE 3 OFF |

| 49287 | $C087 | PHASE 3 ON |

| 49288 | $C088 | MOTOR OFF |

| 49289 | $C089 | MOTOR ON |

| 49290 | $C08A | DRIVE 1 |

| 49291 | $C08B | DRIVE 2 |

| 49292 | $C08C | READ LATCH OR WRITE+SHIFT |

| 49293 | $C08D | WRITE+LOAD OR PROTECT CHK |

| 49294 | $C08E | READ LATCH OR PROTECT CHK |

| 49295 | $C08F | WRITE+LOAD OR WRITE+SHIFT |

+-------+-------+---------------------------+

I/O FUNCTIONS

+-------------+-------------+-------------+

| READ | WRITE | PROTECTED? |

+-------------+-------------+-------------+

| LDA $C08E,X | LDA $C08F,X | |

| ... | ... | |

| ... | LDA DATA | LDA $C08D,X |

| LDA $C08C,X | STA $C08D,X | LDA $C08E,X |

| BPL -1 | ORA $C08C,X | BMI PROTECT |

+-------------+-------------+-------------+

SKEWING

DOS : 0 1 2 3 4 5 6 7 8 9 A B C D E F

PRODOS: 0A 7A 6B 6A 5B 5A 4B 4A 3B 3A 2B 2A 1B 1A 0B 7B

DISK : 0 D B 9 7 5 3 1 E C A 8 6 4 2 F

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 5 of 572

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