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mg_notes:apple_iic:secret_iicplus_smartport [2018/06/12 15:17] M.G. created |
mg_notes:apple_iic:secret_iicplus_smartport [2018/06/27 20:02] M.G. |
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| - | ====== Apple IIc Plus Secret Slot 6 SmartPort ====== | + | ====== Apple IIc Plus Secret Disk II SmartPort ====== |
| In the course of disassembling the Apple IIc Plus firmware, I discovered a secret ProDOS block device and SmartPort implementation for the Disk II. | In the course of disassembling the Apple IIc Plus firmware, I discovered a secret ProDOS block device and SmartPort implementation for the Disk II. | ||
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| It is possible to replace the ProDOS 8 device driver address for slot 6 ($BF1C for drive 1, $BF2C for drive 2) with the block device driver address $C64E, and ProDOS will then operate the Disk II using the firmware driver. | It is possible to replace the ProDOS 8 device driver address for slot 6 ($BF1C for drive 1, $BF2C for drive 2) with the block device driver address $C64E, and ProDOS will then operate the Disk II using the firmware driver. | ||
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| + | I wrote up the discovery [[articles:iicplus_smartport_secrets|here]]. | ||