Tolik-Trek/Shared_Includes
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Tolik 2025-05-28 18:41:48 +10:00
parent d464c878bb
commit 72b28f7d64
1 changed files with 11 additions and 5 deletions
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16
constants/SP2000.inc
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@ -1837,12 +1837,20 @@ CtrlByte: ; Bytes for IDE.Read.Status
; device/head register bits
DeviceHeadByte:
.LBA EQU #40
.Slave EQU #10
.Obsolute EQU #A0
.LBA EQU #40 + .Obsolute
.CHS EQU #00 + .Obsolute
.Master EQU #00 + .Obsolute
.Slave EQU #10 + .Obsolute
;
DeviceHeadBit:
.LBA EQU 6 ; LBA = 1
.Slave EQU 4 ; Slave = 1
;
Drive:
.Master EQU DeviceHeadByte.Master
.Slave EQU DeviceHeadByte.Slave
DeviceControlBit:
.Always_Set EQU 3
@ -1874,10 +1882,8 @@ ATAPI EQU 2
.UNKNOWN EQU #1F
ENDMODULE
;
Drive:
.Master EQU %1010'0000
.Slave EQU %1011'0000
;
MODULE CMD
ATAPI:
.Reset EQU #08