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a2d89de557
In addition to making the driver significantly faster, it allows us to make SDC port configuration opaque to sdc.fs.
22 lines
302 B
Z80 Assembly
22 lines
302 B
Z80 Assembly
( n -- n )
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( Initiate SPI exchange with the SD card. n is the data to
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send. )
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CODE _sdcSR
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HL POPqq,
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chkPS,
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A L LDrr,
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SDC_SPI OUTnA,
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NOP, NOP,
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SDC_SPI INAn,
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L A LDrr,
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HL PUSHqq,
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;CODE
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CODE _sdcSel
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SDC_CSLOW OUTnA,
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;CODE
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CODE _sdcDesel
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SDC_CSHIGH OUTnA,
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;CODE
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