63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
#ifndef APPLE_II_SD_H
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#define APPLE_II_SD_H
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typedef unsigned char byte;
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#define SLOT_IO_START (byte*)0xC080
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#define SLOT_ROM_START (byte*)0xC000
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#define EXT_ROM_START (byte*)0xC800
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#define CFFF (byte*)0xCFFF
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typedef struct
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{
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// data register
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// +0
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byte data;
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// status register
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// +1
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union
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{
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struct
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{
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unsigned pgmen : 1;
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unsigned : 1;
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unsigned ece : 1;
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unsigned : 1;
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unsigned frx : 1;
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const unsigned bsy : 1;
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unsigned : 1;
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const unsigned tc : 1;
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};
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byte status;
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} status;
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// clock divisor register
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// +2
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union
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{
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unsigned clkDiv : 2;
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};
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// slave select and card state register
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// +3
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union
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{
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struct
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{
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unsigned slaveSel : 1;
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unsigned : 3;
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unsigned sdhc : 1;
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unsigned wp : 1;
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unsigned card : 1;
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unsigned inited : 1;
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};
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byte ss_card;
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} ss_card;
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} APPLE_II_SD_T;
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#endif
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