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Recipes contain bits and pieces of hardware-related knowledge, but these bits feel sparse. I've been wanting to consolidate hardware- related documentation for a while, but always fell at odds with the recipes organisation. We don't have recipes anymore, just a /doc/hw section that contains hardware-related documentation which often translate to precise instructions to run Collapse OS on a specific machine. With this new organisation, I hope to end up with a better, more solid documentation.
17 lines
390 B
Plaintext
17 lines
390 B
Plaintext
CODE (key)
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A 0x01 LDri, ( @KEY )
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0x28 RST,
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PUSHA,
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;CODE
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CODE (emit) EXX, ( protect BC )
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BC POP, ( c == @DSP arg ) chkPS,
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A 0x02 LDri, ( @DSP )
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0x28 RST,
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EXX, ( unprotect BC ) ;CODE
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CODE AT-XY EXX, ( protect BC )
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DE POP, H E LDrr, ( Y )
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DE POP, L E LDrr, ( X ) chkPS,
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A 0x0f LDri, ( @VDCTL ) B 3 LDri, ( setcur )
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0x28 RST,
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EXX, ( unprotect BC ) ;CODE
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