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Add parts/platforms
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parts/platforms/README.md
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parts/platforms/README.md
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# platforms
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This is a collection of include files that set platform-specific constants
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that different parts use. When assembling your own OS, pick the platform include
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that is closest to yours and adapt it to your machine.
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parts/platforms/rc2014.inc
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parts/platforms/rc2014.inc
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; classic RC2014 setup (8K ROM + 32K RAM) and a stock Serial I/O module
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RAMEND .equ 0xa000
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ACIA_CTL .equ 0x80 ; Control and status. RS off.
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ACIA_IO .equ 0x81 ; Transmit. RS on.
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; *** STATUS ***
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; Incomplete. This just outputs the welcome prompt then halts
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; *** PLATFORM ***
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; this is specific to a classic RC2014 setup (8K ROM + 32K RAM). This will be
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; reorganized into something better.
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RAMEND .equ 0xa000
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ACIA_CTL .equ 0x80 ; Control and status. RS off.
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ACIA_IO .equ 0x81 ; Transmit. RS on.
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#include "platform.inc"
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; *** CONSTS ***
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CR .equ 0x0d
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@ -31,7 +31,8 @@ device I use in this recipe.
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### Gathering parts
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* `shell.asm` from `parts`
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* `parts/platforms/rc2014.inc` as `platform.inc`
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* `parts/shell/shell.asm` as `shell.asm`
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* [scas][scas]
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* [romwrite][romwrite] and its specified dependencies
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* [GNU screen][screen]
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