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29a6ee128d
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29a6ee128d | ||
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a70366aa43 | ||
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47a7133b8b | ||
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f3c92684a0 |
4
blk/038
4
blk/038
@ -2,8 +2,8 @@
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|||||||
FORGET x -- Rewind the dictionary (both CURRENT and HERE)
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FORGET x -- Rewind the dictionary (both CURRENT and HERE)
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up to x's previous entry.
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up to x's previous entry.
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PREV a -- a Return a wordref's previous entry.
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PREV a -- a Return a wordref's previous entry.
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||||||
WHLEN a -- n Get word header length from wordref. That is,
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WORD( a -- a Get wordref's beginning addr.
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name length + 3. a is a wordref
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||||||
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||||||
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97
drv/sdc.fs
97
drv/sdc.fs
@ -1,12 +1,3 @@
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: SDC_CSHIGH 6 ;
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: SDC_CSLOW 5 ;
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: SDC_SPI 4 ;
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: _sdcSR SDC_SPI PC! SDC_SPI PC@ ;
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: _sel 0 SDC_CSLOW PC! ;
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: _desel 0 SDC_CSHIGH PC! ;
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( -- n )
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( -- n )
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: _idle 0xff _sdcSR ;
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: _idle 0xff _sdcSR ;
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@ -87,38 +78,39 @@
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( send CRC )
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( send CRC )
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0x01 OR ( ensure stop bit )
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0x01 OR ( ensure stop bit )
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_sdcSR DROP
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_sdcSR DROP
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( And now we just have to wait for a valid response... )
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( And now we just have to wait for a valid response... )
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_wait
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_wait
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;
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;
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( cmd arg1 arg2 -- r )
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( cmd arg1 arg2 -- r )
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( Send a command that expects a R1 response, handling CS. )
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( Send a command that expects a R1 response, handling CS. )
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: SDCMDR1 _sel _cmd _desel ;
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: SDCMDR1 _sdcSel _cmd _sdcDesel ;
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( cmd arg1 arg2 -- r arg1 arg2 )
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( cmd arg1 arg2 -- r arg1 arg2 )
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( Send a command that expects a R7 response, handling CS. A R7
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( Send a command that expects a R7 response, handling CS. A R7
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is a R1 followed by 4 bytes. arg1 contains bytes 0:1, arg2
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is a R1 followed by 4 bytes. arg1 contains bytes 0:1, arg2
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has 2:3 )
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has 2:3 )
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: SDCMDR7
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: SDCMDR7
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_sel
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_sdcSel
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_cmd ( r )
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_cmd ( r )
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_idle 256 * ( r h )
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_idle 256 * ( r h )
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_idle + ( r arg1 )
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_idle + ( r arg1 )
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_idle 256 * ( r arg1 h )
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_idle 256 * ( r arg1 h )
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_idle + ( r arg1 arg2 )
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_idle + ( r arg1 arg2 )
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_desel
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_sdcDesel
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;
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;
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: _err _sdcDesel ABORT" SDerr" ;
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( Initialize a SD card. This should be called at least 1ms
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( Initialize a SD card. This should be called at least 1ms
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after the powering up of the card. r is result.
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after the powering up of the card. )
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Zero means success, non-zero means error. )
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: SDC$
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: SDC$
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( Wake the SD card up. After power up, a SD card has to
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( Wake the SD card up. After power up, a SD card has to
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receive at least 74 dummy clocks with CS and DI high. We
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receive at least 74 dummy clocks with CS and DI high. We
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send 80. )
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send 80. )
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10 0 DO 0xff SDC_SPI PC! LOOP
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10 0 DO _idle DROP LOOP
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( call cmd0 and expect a 0x01 response (card idle)
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( call cmd0 and expect a 0x01 response (card idle)
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this should be called multiple times. we're actually
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this should be called multiple times. we're actually
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expected to. let's call this for a maximum of 10 times. )
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expected to. let's call this for a maximum of 10 times. )
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0 ( dummy )
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0 ( dummy )
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@ -128,18 +120,18 @@
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SDCMDR1
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SDCMDR1
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DUP 0x01 = IF LEAVE THEN
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DUP 0x01 = IF LEAVE THEN
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LOOP
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LOOP
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0x01 = NOT IF 1 EXIT THEN
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0x01 = NOT IF _err THEN
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( Then comes the CMD8. We send it with a 0x01aa argument
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( Then comes the CMD8. We send it with a 0x01aa argument
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and expect a 0x01aa argument back, along with a 0x01 R1
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and expect a 0x01aa argument back, along with a 0x01 R1
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response. )
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response. )
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0b01001000 0 0x1aa ( CMD8 )
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0b01001000 0 0x1aa ( CMD8 )
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SDCMDR7 ( r arg1 arg2 )
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SDCMDR7 ( r arg1 arg2 )
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0x1aa = NOT IF 2 EXIT THEN ( arg2 check )
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0x1aa = NOT IF _err THEN ( arg2 check )
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0 = NOT IF 3 EXIT THEN ( arg1 check )
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0 = NOT IF _err THEN ( arg1 check )
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0x01 = NOT IF 4 EXIT THEN ( r check )
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0x01 = NOT IF _err THEN ( r check )
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( Now we need to repeatedly run CMD55+CMD41 (0x40000000)
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( Now we need to repeatedly run CMD55+CMD41 (0x40000000)
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until the card goes out of idle mode, that is, when
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until the card goes out of idle mode, that is, when
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it stops sending us 0x01 response and send us 0x00
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it stops sending us 0x01 response and send us 0x00
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instead. Any other response means that initialization
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instead. Any other response means that initialization
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@ -147,24 +139,23 @@
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BEGIN
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BEGIN
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0b01110111 0 0 ( CMD55 )
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0b01110111 0 0 ( CMD55 )
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SDCMDR1
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SDCMDR1
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0x01 = NOT IF 5 EXIT THEN
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0x01 = NOT IF _err THEN
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0b01101001 0x4000 0x0000 ( CMD41 )
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0b01101001 0x4000 0x0000 ( CMD41 )
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SDCMDR1
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SDCMDR1
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DUP 0x01 > IF DROP 6 EXIT THEN
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DUP 0x01 > IF _err THEN
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NOT UNTIL
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NOT UNTIL
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( Out of idle mode! Success! )
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( Out of idle mode! Success! )
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0
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;
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;
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( dstaddr blkno -- f )
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( dstaddr blkno -- )
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: SDC@
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: _sdc@
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_sel
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_sdcSel
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0x51 ( CMD17 )
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0x51 ( CMD17 )
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0 ROT ( a cmd 0 blkno )
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0 ROT ( a cmd 0 blkno )
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_cmd
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_cmd
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IF _desel 0 EXIT THEN
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IF _err THEN
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_wait
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_wait
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0xfe = NOT IF _desel 0 EXIT THEN
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0xfe = NOT IF _err THEN
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0 SWAP ( crc a )
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0 SWAP ( crc a )
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512 0 DO ( crc a )
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512 0 DO ( crc a )
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DUP ( crc a a )
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DUP ( crc a a )
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@ -179,6 +170,46 @@
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_idle 256 *
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_idle 256 *
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_idle + ( crc2 )
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_idle + ( crc2 )
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_wait DROP
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_wait DROP
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_desel
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_sdcDesel
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= ( success if crc1 == crc2 )
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= NOT IF _err THEN
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;
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: SDC@
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2 * DUP BLK( SWAP ( b a b )
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_sdc@
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1+ BLK( 512 + SWAP
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_sdc@
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;
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( srcaddr blkno -- )
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: _sdc!
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_sdcSel
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0x58 ( CMD24 )
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0 ROT ( a cmd 0 blkno )
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_cmd
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IF _err THEN
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_idle DROP
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0xfe _sdcSR DROP
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0 SWAP ( crc a )
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512 0 DO ( crc a )
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C@+ ( crc a+1 n )
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ROT OVER ( a n crc n )
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_crc16 ( a n crc )
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SWAP ( a crc n )
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_sdcSR DROP ( a crc )
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SWAP ( crc a )
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LOOP
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DROP ( crc )
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256 /MOD ( lsb msb )
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_sdcSR DROP ( lsb )
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_sdcSR DROP
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_wait DROP
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_sdcDesel
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;
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: SDC!
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2 * DUP BLK( SWAP ( b a b )
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_sdc!
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1+ BLK( 512 + SWAP
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_sdc!
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;
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;
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21
drv/sdc.z80
Normal file
21
drv/sdc.z80
Normal file
@ -0,0 +1,21 @@
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( 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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|
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CODE _sdcDesel
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SDC_CSHIGH OUTnA,
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|
;CODE
|
@ -183,7 +183,6 @@ void sdc_spi_wr(SDC *sdc, uint8_t val)
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return;
|
return;
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}
|
}
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if (cmd == 24) {
|
if (cmd == 24) {
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fprintf(stderr, "cmd24\n");
|
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if (sdc->fp) {
|
if (sdc->fp) {
|
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fseek(sdc->fp, arg2*512, SEEK_SET);
|
fseek(sdc->fp, arg2*512, SEEK_SET);
|
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}
|
}
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|
@ -58,9 +58,9 @@
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( During a CASE, the stack grows by 1 at each ENDOF so that
|
( During a CASE, the stack grows by 1 at each ENDOF so that
|
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we can fill all those ENDOF branching addrs. So that we
|
we can fill all those ENDOF branching addrs. So that we
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know when to stop, we put a 0 on PSP. That's our stopgap. )
|
know when to stop, we put a 0 on PSP. That's our stopgap. )
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: CASE 0 ; IMMEDIATE
|
: CASE 0 COMPILE >R ; IMMEDIATE
|
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: OF
|
: OF
|
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COMPILE OVER COMPILE =
|
COMPILE I COMPILE =
|
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[COMPILE] IF
|
[COMPILE] IF
|
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; IMMEDIATE
|
; IMMEDIATE
|
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: ENDOF [COMPILE] ELSE ; IMMEDIATE
|
: ENDOF [COMPILE] ELSE ; IMMEDIATE
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@ -70,10 +70,11 @@
|
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hit 0. )
|
hit 0. )
|
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: ENDCASE
|
: ENDCASE
|
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BEGIN
|
BEGIN
|
||||||
DUP NOT IF DROP EXIT THEN
|
DUP NOT IF
|
||||||
|
DROP COMPILE R> COMPILE DROP EXIT
|
||||||
|
THEN
|
||||||
[COMPILE] THEN
|
[COMPILE] THEN
|
||||||
AGAIN
|
AGAIN
|
||||||
COMPILE DROP
|
|
||||||
; IMMEDIATE
|
; IMMEDIATE
|
||||||
|
|
||||||
: CREATE
|
: CREATE
|
||||||
@ -154,17 +155,18 @@
|
|||||||
- ( a-o )
|
- ( a-o )
|
||||||
;
|
;
|
||||||
|
|
||||||
: WHLEN
|
: WORD(
|
||||||
1- C@ ( name len field )
|
DUP 1- C@ ( name len field )
|
||||||
127 AND ( 0x7f. remove IMMEDIATE flag )
|
127 AND ( 0x7f. remove IMMEDIATE flag )
|
||||||
3 + ( fixed header len )
|
3 + ( fixed header len )
|
||||||
|
-
|
||||||
;
|
;
|
||||||
|
|
||||||
: FORGET
|
: FORGET
|
||||||
' DUP ( w w )
|
' DUP ( w w )
|
||||||
( HERE must be at the end of prev's word, that is, at the
|
( HERE must be at the end of prev's word, that is, at the
|
||||||
beginning of w. )
|
beginning of w. )
|
||||||
DUP WHLEN - HERE ! ( w )
|
WORD( HERE ! ( w )
|
||||||
PREV CURRENT !
|
PREV CURRENT !
|
||||||
;
|
;
|
||||||
|
|
||||||
|
@ -39,9 +39,6 @@
|
|||||||
1+
|
1+
|
||||||
;
|
;
|
||||||
|
|
||||||
( Get word addr, starting at name's address )
|
|
||||||
: '< ' DUP WHLEN - ;
|
|
||||||
|
|
||||||
( Relink atom at a, applying offset o with limit ol.
|
( Relink atom at a, applying offset o with limit ol.
|
||||||
Returns a, appropriately skipped.
|
Returns a, appropriately skipped.
|
||||||
)
|
)
|
||||||
@ -127,6 +124,10 @@
|
|||||||
The output of this word is 3 numbers: top copied address,
|
The output of this word is 3 numbers: top copied address,
|
||||||
top copied CURRENT, and then the beginning of the copied dict
|
top copied CURRENT, and then the beginning of the copied dict
|
||||||
at the end to indicate that we're finished processing.
|
at the end to indicate that we're finished processing.
|
||||||
|
|
||||||
|
Note that the last word is always skipped because it's not
|
||||||
|
possible to reliably detect its end. If you need that last
|
||||||
|
word, define a dummy word before calling RLDICT.
|
||||||
)
|
)
|
||||||
( target -- )
|
( target -- )
|
||||||
: RLDICT
|
: RLDICT
|
||||||
@ -142,7 +143,7 @@
|
|||||||
( H@+2 == offset )
|
( H@+2 == offset )
|
||||||
H@ 2+ ! ( )
|
H@ 2+ ! ( )
|
||||||
( We have our offset, now let's copy our memory chunk )
|
( We have our offset, now let's copy our memory chunk )
|
||||||
H@ @ DUP WHLEN - ( src )
|
H@ @ WORD( ( src )
|
||||||
DUP H@ -^ ( src u )
|
DUP H@ -^ ( src u )
|
||||||
DUP ROT SWAP ( u src u )
|
DUP ROT SWAP ( u src u )
|
||||||
H@ 4 + ( u src u dst )
|
H@ 4 + ( u src u dst )
|
||||||
@ -154,9 +155,9 @@
|
|||||||
offset by u+4. +4 before, remember, we're using 4 bytes
|
offset by u+4. +4 before, remember, we're using 4 bytes
|
||||||
as variable space. )
|
as variable space. )
|
||||||
4 + ( u+4 )
|
4 + ( u+4 )
|
||||||
DUP H@ + ( u we )
|
DUP CURRENT @ WORD( + ( u we )
|
||||||
DUP .X CRLF
|
DUP .X CRLF
|
||||||
SWAP CURRENT @ + ( we wr )
|
SWAP CURRENT @ PREV + ( we wr )
|
||||||
DUP .X CRLF
|
DUP .X CRLF
|
||||||
BEGIN ( we wr )
|
BEGIN ( we wr )
|
||||||
DUP ROT ( wr wr we )
|
DUP ROT ( wr wr we )
|
||||||
@ -169,7 +170,7 @@
|
|||||||
DUP ( wr wr )
|
DUP ( wr wr )
|
||||||
PREV ( oldwr newwr )
|
PREV ( oldwr newwr )
|
||||||
SWAP ( wr oldwr )
|
SWAP ( wr oldwr )
|
||||||
DUP WHLEN - ( wr we )
|
WORD( ( wr we )
|
||||||
SWAP ( we wr )
|
SWAP ( we wr )
|
||||||
( Are we finished? We're finished if wr-4 <= H@ )
|
( Are we finished? We're finished if wr-4 <= H@ )
|
||||||
DUP 4 - H@ <=
|
DUP 4 - H@ <=
|
||||||
|
@ -10,6 +10,7 @@ BOOTSRCS = conf.fs \
|
|||||||
$(FDIR)/boot.fs \
|
$(FDIR)/boot.fs \
|
||||||
$(FDIR)/z80c.fs \
|
$(FDIR)/z80c.fs \
|
||||||
$(BASEDIR)/drv/acia.z80 \
|
$(BASEDIR)/drv/acia.z80 \
|
||||||
|
$(BASEDIR)/drv/sdc.z80 \
|
||||||
$(FDIR)/icore.fs \
|
$(FDIR)/icore.fs \
|
||||||
$(EDIR)/xstop.fs
|
$(EDIR)/xstop.fs
|
||||||
|
|
||||||
|
@ -2,5 +2,8 @@
|
|||||||
0xf000 CONSTANT RS_ADDR
|
0xf000 CONSTANT RS_ADDR
|
||||||
0x80 CONSTANT ACIA_CTL
|
0x80 CONSTANT ACIA_CTL
|
||||||
0x81 CONSTANT ACIA_IO
|
0x81 CONSTANT ACIA_IO
|
||||||
|
4 CONSTANT SDC_SPI
|
||||||
|
5 CONSTANT SDC_CSLOW
|
||||||
|
6 CONSTANT SDC_CSHIGH
|
||||||
RAMSTART 0x70 + CONSTANT ACIA_MEM
|
RAMSTART 0x70 + CONSTANT ACIA_MEM
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user