--- a/src/ascii.h
+++ b/src/ascii.h
@@ -8,14 +8,8 @@
 
 /*
  * Definitions of various common control characters.
- * For EBCDIC we have to use different values.
  */
 
-#ifndef EBCDIC
-
-// IF_EB(ASCII_constant, EBCDIC_constant)
-#define IF_EB(a, b)	a
-
 #define CharOrd(x)	((x) < 'a' ? (x) - 'A' : (x) - 'a')
 #define CharOrdLow(x)	((x) - 'a')
 #define CharOrdUp(x)	((x) - 'A')
@@ -77,94 +71,6 @@
 #define Ctrl_HAT	30  // ^
 #define Ctrl__		31
 
-#else
-
-// EBCDIC
-
-// IF_EB(ASCII_constant, EBCDIC_constant)
-#define IF_EB(a, b)	b
-
-/*
- * Finding the position in the alphabet is not straightforward in EBCDIC.
- * There are gaps in the code table.
- * 'a' + 1 == 'b', but: 'i' + 7 == 'j' and 'r' + 8 == 's'
- */
-#define CharOrd__(c) ((c) < ('j' - 'a') ? (c) : ((c) < ('s' - 'a') ? (c) - 7 : (c) - 7 - 8))
-#define CharOrdLow(x) (CharOrd__((x) - 'a'))
-#define CharOrdUp(x) (CharOrd__((x) - 'A'))
-#define CharOrd(x) (isupper(x) ? CharOrdUp(x) : CharOrdLow(x))
-
-#define EBCDIC_CHAR_ADD_(x) ((x) < 0?'a':(x)>25?'z':"abcdefghijklmnopqrstuvwxyz"[x])
-#define EBCDIC_CHAR_ADD(c,s) (isupper(c) ? toupper(EBCDIC_CHAR_ADD_(CharOrdUp(c)+(s))) : EBCDIC_CHAR_ADD_(CharOrdLow(c)+(s)))
-
-#define R13_(c) ("abcdefghijklmnopqrstuvwxyz"[((c) + 13) % 26])
-#define ROT13(c, a)  (isupper(c) ? toupper(R13_(CharOrdUp(c))) : R13_(CharOrdLow(c)))
-
-#define NUL		'\000'
-#define BELL		'\x2f'
-#define BS		'\x16'
-#define TAB		'\x05'
-#define NL		'\x15'
-#define NL_STR		(char_u *)"\x15"
-#define FF		'\x0C'
-#define CAR		'\x0D'
-#define ESC		'\x27'
-#define ESC_STR		(char_u *)"\x27"
-#define ESC_STR_nc	"\x27"
-#define DEL		0x07
-#define DEL_STR		(char_u *)"\007"
-
-#define POUND		0xB1
-
-#define CTRL_F_STR	"\056"
-#define CTRL_H_STR	"\026"
-#define CTRL_V_STR	"\062"
-
-#define Ctrl_AT		0x00   // @
-#define Ctrl_A		0x01
-#define Ctrl_B		0x02
-#define Ctrl_C		0x03
-#define Ctrl_D		0x37
-#define Ctrl_E		0x2D
-#define Ctrl_F		0x2E
-#define Ctrl_G		0x2F
-#define Ctrl_H		0x16
-#define Ctrl_I		0x05
-#define Ctrl_J		0x15
-#define Ctrl_K		0x0B
-#define Ctrl_L		0x0C
-#define Ctrl_M		0x0D
-#define Ctrl_N		0x0E
-#define Ctrl_O		0x0F
-#define Ctrl_P		0x10
-#define Ctrl_Q		0x11
-#define Ctrl_R		0x12
-#define Ctrl_S		0x13
-#define Ctrl_T		0x3C
-#define Ctrl_U		0x3D
-#define Ctrl_V		0x32
-#define Ctrl_W		0x26
-#define Ctrl_X		0x18
-#define Ctrl_Y		0x19
-#define Ctrl_Z		0x3F
-			    // CTRL- [ Left Square Bracket == ESC
-#define Ctrl_RSB	0x1D  // ] Right Square Bracket
-#define Ctrl_BSL	0x1C  // \ BackSLash
-#define Ctrl_HAT	0x1E  // ^
-#define Ctrl__		0x1F
-
-#define Ctrl_chr(x)	(CtrlTable[(x)])
-extern char CtrlTable[];
-
-#define CtrlChar(x)	((x < ' ') ? CtrlCharTable[(x)] : 0)
-extern char CtrlCharTable[];
-
-#define MetaChar(x)	((x < ' ') ? MetaCharTable[(x)] : 0)
-extern char MetaCharTable[];
-
-#endif // defined EBCDIC
-
-// TODO: EBCDIC Code page dependent (here 1047)
 #define CSI		0x9b	// Control Sequence Introducer
 #define CSI_STR		"\233"
 #define DCS		0x90	// Device Control String