Mercurial > hg > Members > kono > nitros9-code
changeset 1898:c9f639d11d63
Added some minor defs for ddisk
| author | afra |
|---|---|
| date | Sun, 23 Oct 2005 12:14:08 +0000 |
| parents | 3562904cb037 |
| children | 010adb3de936 |
| files | defs/dgndefs |
| diffstat | 1 files changed, 8 insertions(+), 2 deletions(-) [+] |
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--- a/defs/dgndefs Sun Oct 23 12:13:30 2005 +0000 +++ b/defs/dgndefs Sun Oct 23 12:14:08 2005 +0000 @@ -132,11 +132,15 @@ Drive1D EQU %00000001 Drive2D EQU %00000010 Drive3D EQU %00000011 +DDosDriveMask EQU %00000011 Mask out all non drive select bits +DDosCtrlMask EQU %11111100 Mask in all non drive select bits * Disk IO bitmasks (Dragon Alpha). -NMIEnA EQU %00001000 PIA2, CA2, used to enable/disable NMI -NMIDisA EQU %11110111 Bitmask to foce CA2 off, and disable NMI +PIANMIEnA EQU %00001000 PIA2, CA2, used to enable/disable NMI +PIANMIDisA EQU %11110111 Bitmask to force CA2 off, and disable NMI + +NMIEnA EQU %10000000 Flag to enable disable NMI, passed to AlphaDskCtl WPCEnA EQU %01000000 According to circuit trace by R.Harding. SDensEnA EQU %00100000 DDen, from circuit trace on R.Harding's machine. MotorOnA EQU %00010000 @@ -144,6 +148,8 @@ Drive1A EQU %00000010 Drive2A EQU %00000100 Drive3A EQU %00001000 +AlphaDrvMask EQU %00001111 Mask out all non drive select bits +AlphaCtrlMask EQU %11110000 Mask in all non drive select bits Mask58 EQU %01111111 And mask to make sure 5.25" clock selected by WD2797