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This commit is contained in:
Phillip Stevens
2020-01-07 19:45:54 +11:00
committed by GitHub
parent f3d059d4d7
commit 3d7e3cae6f
1 changed files with 20 additions and 20 deletions
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40
Source/HBIOS/sd.asm
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@@ -58,14 +58,14 @@
; +---+---+---+---+---+---+---+---+
; | 0 | X | X | X | X | X | X | X |
; +---+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
; | | | | | | |
; | | | | | | +--- IDLE
; | | | | | +------- ERASE RESET
; | | | | +----------- ILLEGAL COMMAND
; | | | +--------------- COM CRC ERROR
; | | +------------------- ERASE SEQUENCE ERROR
; | +----------------------- ADDRESS ERROR
; +--------------------------- PARAMETER ERROR
; | | | | | | |
; | | | | | | +--- IDLE
; | | | | | +------- ERASE RESET
; | | | | +----------- ILLEGAL COMMAND
; | | | +--------------- COM CRC ERROR
; | | +------------------- ERASE SEQUENCE ERROR
; | +----------------------- ADDRESS ERROR
; +--------------------------- PARAMETER ERROR
;
; === DATA ERROR TOKEN ===
;
@@ -1691,9 +1691,9 @@ SD_PUT:
SET 4,A ; SET TRANSMIT ENABLE
OUT0 (SD_CNTR),A
#ELSE
#IF (SDMODE == SDMODE_UART)
#IF (SDMODE == SDMODE_UART)
XOR $FF ; DI IS INVERTED ON UART
#ENDIF
#ENDIF
LD C,A ; C=BYTE TO SEND
LD B,8 ; SEND 8 BITS (LOOP 8 TIMES)
LD A,(SD_OPRVAL) ; LOAD CURRENT OPR VALUE
@@ -1737,29 +1737,29 @@ SD_GET1:
XOR SD_CLK ; TOGGLE CLOCK
OUT (SD_OPRREG),A ; UPDATE CLOCK
IN A,(SD_INPREG) ; READ THE DATA WHILE CLOCK IS ACTIVE
#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_PPI))
#IF ((SDMODE == SDMODE_JUHA) | (SDMODE == SDMODE_PPI))
RLA ; ROTATE INP:7 INTO CF
#ENDIF
#IF (SDMODE == SDMODE_N8)
#ENDIF
#IF (SDMODE == SDMODE_N8)
RLA ; ROTATE INP:6 INTO CF
RLA ; "
#ENDIF
#IF (SDMODE == SDMODE_UART)
#ENDIF
#IF (SDMODE == SDMODE_UART)
RLA ; ROTATE INP:5 INTO CF
RLA ; "
RLA ; "
#ENDIF
#IF (SDMODE == SDMODE_DSD)
#ENDIF
#IF (SDMODE == SDMODE_DSD)
RRA ; ROTATE INP:0 INTO CF
#ENDIF
#ENDIF
RL C ; ROTATE CF INTO C:0
LD A,(SD_OPRVAL) ; BACK TO INITIAL VALUES (TOGGLE CLOCK)
OUT (SD_OPRREG),A ; DO IT
DJNZ SD_GET1 ; REPEAT FOR ALL 8 BITS
LD A,C ; GET BYTE RECEIVED INTO A
#IF (SDMODE == SDMODE_UART)
#IF (SDMODE == SDMODE_UART)
XOR $FF ; DO IS INVERTED ON UART
#ENDIF
#ENDIF
#ENDIF
#ENDIF
RET