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authorIan Lance Taylor <ian@airs.com>1999-05-27 22:31:03 +0000
committerIan Lance Taylor <ian@airs.com>1999-05-27 22:31:03 +0000
commit1fca749bd1ca3c78b487c2c90fde078a1631c3c7 (patch)
treec383d4b2abc06c597ddc18312b0224862124d504 /include/opcode/m68k.h
parent0d59e345703c6ff0bcb88a4a84617e9b08260af7 (diff)
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1999-05-28 Linus Nordberg <linus.nordberg@canit.se>
* m68k.h: Document new formats `E', `G', `H' and new places `N', `n', `o'. * m68k.h: Define mcf5206e, mcf5307, mcf. Document new format `u' and new places `m', `M', `h'.
Diffstat (limited to 'include/opcode/m68k.h')
-rw-r--r--include/opcode/m68k.h33
1 files changed, 31 insertions, 2 deletions
diff --git a/include/opcode/m68k.h b/include/opcode/m68k.h
index ecb3f95..3208b77 100644
--- a/include/opcode/m68k.h
+++ b/include/opcode/m68k.h
@@ -1,5 +1,5 @@
/* Opcode table header for m680[01234]0/m6888[12]/m68851.
- Copyright 1989, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation.
+ Copyright 1989, 91, 92, 93, 94, 95, 96, 97, 1999 Free Software Foundation.
This file is part of GDB, GAS, and the GNU binutils.
@@ -36,6 +36,8 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#define m68851 0x080
#define cpu32 0x100 /* e.g., 68332 */
#define mcf5200 0x200
+#define mcf5206e 0x400
+#define mcf5307 0x800
/* handy aliases */
#define m68040up (m68040 | m68060)
@@ -43,6 +45,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#define m68020up (m68020 | m68030up)
#define m68010up (m68010 | cpu32 | m68020up)
#define m68000up (m68000 | m68010up)
+#define mcf (mcf5200 | mcf5206e | mcf5307)
#define mfloat (m68881 | m68882 | m68040 | m68060)
#define mmmu (m68851 | m68030 | m68040 | m68060)
@@ -87,7 +90,7 @@ struct m68k_opcode_alias
operand; the second, the place it is stored. */
/* Kinds of operands:
- Characters used: AaBCcDdFfIJkLlMmnOopQqRrSsTtUVvWXYZ0123|*~%;@!&$?/<>#^+-
+ Characters used: AaBCcDdEFfGHIJkLlMmnOopQqRrSsTtU VvWXYZ0123|*~%;@!&$?/<>#^+-
D data register only. Stored as 3 bits.
A address register only. Stored as 3 bits.
@@ -121,6 +124,9 @@ struct m68k_opcode_alias
C the CCR. No need to store it; this is just for filtering validity.
S the SR. No need to store, just as with CCR.
U the USP. No need to store, just as with CCR.
+ E the ACC. No need to store, just as with CCR.
+ G the MACSR. No need to store, just as with CCR.
+ H the MASK. No need to store, just as with CCR.
I Coprocessor ID. Not printed if 1. The Coprocessor ID is always
extracted from the 'd' field of word one, which means that an extended
@@ -170,6 +176,9 @@ struct m68k_opcode_alias
for both caches. Used in cinv and cpush. Always
stored in position "d".
+ u Any register, with ``upper'' or ``lower'' specification. Used
+ in the mac instructions with size word.
+
The remainder are all stored as 6 bits using an address mode and a
register number; they differ in which addressing modes they match.
@@ -260,6 +269,8 @@ struct m68k_opcode_alias
*/
/* Places to put an operand, for non-general operands:
+ Characters used: BbCcDdghijkLlMmNnostWw123456789
+
s source, low bits of first word.
d dest, shifted 9 in first word
1 second word, shifted 12
@@ -293,6 +304,24 @@ struct m68k_opcode_alias
C floating point coprocessor constant - 7 bits. Also used for static
K-factors...
j Movec register #, stored in 12 low bits of second word.
+ m For M[S]ACx; 4 bits split with MSB shifted 6 bits in first word
+ and remaining 3 bits of register shifted 9 bits in first word.
+ Indicate upper/lower in 1 bit shifted 7 bits in second word.
+ Use with `R' or `u' format.
+ n `m' withouth upper/lower indication. (For M[S]ACx; 4 bits split
+ with MSB shifted 6 bits in first word and remaining 3 bits of
+ register shifted 9 bits in first word. No upper/lower
+ indication is done.) Use with `R' or `u' format.
+ o For M[S]ACw; 4 bits shifted 12 in second word (like `1').
+ Indicate upper/lower in 1 bit shifted 7 bits in second word.
+ Use with `R' or `u' format.
+ M For M[S]ACw; 4 bits in low bits of first word. Indicate
+ upper/lower in 1 bit shifted 6 bits in second word. Use with
+ `R' or `u' format.
+ N For M[S]ACw; 4 bits in low bits of second word. Indicate
+ upper/lower in 1 bit shifted 6 bits in second word. Use with
+ `R' or `u' format.
+ h shift indicator (scale factor), 1 bit shifted 10 in second word
Places to put operand, for general operands:
d destination, shifted 6 bits in first word