collapseos/blk/372

( Initiate SPI exchange with the SD card. n is the data to
  send. )
CODE _sdcSR  ( n -- n )
    HL POPqq,
    chkPS,
    A L LDrr,
    SDC_SPI OUTnA,
    NOP, NOP,
    SDC_SPI INAn,
    L A LDrr,
    HL PUSHqq,
;CODE
drv/sdc: implement core words in z80 In addition to making the driver significantly faster, it allows us to make SDC port configuration opaque to sdc.fs. 2020-04-19 10:33:51 +10:00			`( Initiate SPI exchange with the SD card. n is the data to`
			`send. )`
Copy sdc driver to blkfs 2020-04-24 03:55:00 +10:00			`CODE _sdcSR ( n -- n )`
drv/sdc: implement core words in z80 In addition to making the driver significantly faster, it allows us to make SDC port configuration opaque to sdc.fs. 2020-04-19 10:33:51 +10:00			`HL POPqq,`
			`chkPS,`
			`A L LDrr,`
			`SDC_SPI OUTnA,`
			`NOP, NOP,`
			`SDC_SPI INAn,`
			`L A LDrr,`
			`HL PUSHqq,`
			`;CODE`