The Wolfenstein 3D source as originally released.

WOLFSRC/ID_VL.EQU

@@ -0,0 +1,58 @@
+; ID_VL.EQU
+
+SC_INDEX	=	03C4h
+SC_RESET	=	0
+SC_CLOCK	=	1
+SC_MAPMASK	=	2
+SC_CHARMAP	=	3
+SC_MEMMODE	=	4
+
+CRTC_INDEX	=	03D4h
+CRTC_H_TOTAL	=	0
+CRTC_H_DISPEND	=	1
+CRTC_H_BLANK	=	2
+CRTC_H_ENDBLANK	=	3
+CRTC_H_RETRACE	=	4
+CRTC_H_ENDRETRACE =	5
+CRTC_V_TOTAL	=	6
+CRTC_OVERFLOW	=	7
+CRTC_ROWSCAN	=	8
+CRTC_MAXSCANLINE =	9
+CRTC_CURSORSTART =	10
+CRTC_CURSOREND	=	11
+CRTC_STARTHIGH	=	12
+CRTC_STARTLOW	=	13
+CRTC_CURSORHIGH	=	14
+CRTC_CURSORLOW	=	15
+CRTC_V_RETRACE	=	16
+CRTC_V_ENDRETRACE =	17
+CRTC_V_DISPEND	=	18
+CRTC_OFFSET	=	19
+CRTC_UNDERLINE	=	20
+CRTC_V_BLANK	=	21
+CRTC_V_ENDBLANK	=	22
+CRTC_MODE	=	23
+CRTC_LINECOMPARE =	24
+
+
+GC_INDEX	=	03CEh
+GC_SETRESET	=	0
+GC_ENABLESETRESET =	1
+GC_COLORCOMPARE	=	2
+GC_DATAROTATE	=	3
+GC_READMAP	=	4
+GC_MODE		=	5
+GC_MISCELLANEOUS =	6
+GC_COLORDONTCARE =	7
+GC_BITMASK	=	8
+
+ATR_INDEX	=	03c0h
+ATR_MODE	=	16
+ATR_OVERSCAN	=	17
+ATR_COLORPLANEENABLE =	18
+ATR_PELPAN	=	19
+ATR_COLORSELECT	=	20
+
+STATUS_REGISTER_1     =	03dah
+
+