forked from AbleOS/ableos
23 lines
914 B
Plaintext
23 lines
914 B
Plaintext
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$ATA_PRIMARY_DATA := @intcast(0x1F0)
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$ATA_PRIMARY_ERR := @intcast(0x1F1)
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$ATA_PRIMARY_SECCOUNT := @intcast(0x1F2)
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$ATA_PRIMARY_LBA_LO := @intcast(0x1F3)
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$ATA_PRIMARY_LBA_MID := @intcast(0x1F4)
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$ATA_PRIMARY_LBA_HI := @intcast(0x1F5)
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$ATA_PRIMARY_DRIVE_HEAD := @intcast(0x1F6)
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$ATA_PRIMARY_COMM_REGSTAT := @intcast(0x1F7)
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$ATA_PRIMARY_ALTSTAT_DCR := @intcast(0x3F6)
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// Indicates an error occurred. Send a new command to clear it
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STAT_ERR := 1 << 0
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// Set when the drive has PIO data to transfer, or is ready to accept PIO data.
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STAT_DRQ := 1 << 3
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// Overlapped Mode Service Request.
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STAT_SRV := 1 << 4
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// Drive Fault Error (does not set ERR).
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STAT_DF := 1 << 5
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// Bit is clear when drive is spun down, or after an error. Set otherwise.
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STAT_RDY := 1 << 6
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// Indicates the drive is preparing to send/receive data (wait for it to clear).
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// In case of 'hang' (it never clears), do a software reset.
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STAT_BSY := 1 << 7
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