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collapseos/blk/419
Virgil Dupras 6947fea2a8 emul/z80: add SD card support to SMS
It works (in emulation, but soon on real hardware!), but the LIST
command is awkward due to tight screen estate...
2020-10-25 16:53:58 -04:00

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CODE (spix) ( n -- n )
HL POP, chkPS, A L LDrr,
SPI_DATA OUTiA,
( wait until xchg is done )
BEGIN, SPI_CTL INAi, 1 ANDi, JRNZ, AGAIN,
SPI_DATA INAi,
L A LDrr,
HL PUSH,
;CODE
CODE (spie) ( n -- )
HL POP, chkPS, A L LDrr,
SPI_CTL OUTiA,
;CODE