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drv/sdc: Implement "SDC@" as a BLK@ word

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"0 LIST" in the RC2014 emulator w/ SD card works!
This commit is contained in:
Virgil Dupras 2020-04-18 17:06:57 -04:00
parent f3c92684a0
commit 47a7133b8b
1 changed files with 21 additions and 9 deletions
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22
drv/sdc.fs
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@ -156,15 +156,20 @@
0
;
( dstaddr blkno -- f )
: SDC@
: _err
_desel
ABORT" SDC error"
;
( dstaddr blkno -- )
: _sdc@
_sel
0x51 ( CMD17 )
0 ROT ( a cmd 0 blkno )
_cmd
IF _desel 0 EXIT THEN
IF _err THEN
_wait
0xfe = NOT IF _desel 0 EXIT THEN
0xfe = NOT IF _err THEN
0 SWAP ( crc a )
512 0 DO ( crc a )
DUP ( crc a a )
@ -180,5 +185,12 @@
_idle + ( crc2 )
_wait DROP
_desel
= ( success if crc1 == crc2 )
= NOT IF _err THEN
;
: SDC@
2 * DUP BLK( SWAP ( b a b )
_sdc@
1+ BLK( 512 + SWAP
_sdc@
;