collapseos/blk/602

( Initiate SPI exchange with the SD card. n is the data to
  send. )
CODE _sdcSR  ( n -- n )
    HL POP,
    chkPS,
    A L LDrr,
    SDC_SPI OUTiA,
    NOP, NOP,
    SDC_SPI INAi,
    L A LDrr,
    HL PUSH,
;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 )`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`HL POP,`
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			`chkPS,`
			`A L LDrr,`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`SDC_SPI OUTiA,`
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			`NOP, NOP,`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`SDC_SPI INAi,`
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			`L A LDrr,`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`HL PUSH,`
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			`;CODE`