diff options
author | Andreas Schwab <schwab@linux-m68k.org> | 2004-07-09 18:42:14 +0000 |
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committer | Andreas Schwab <schwab@linux-m68k.org> | 2004-07-09 18:42:14 +0000 |
commit | 8577e690b528b94d92c5c4136bf2b1f059463c6e (patch) | |
tree | 46cc0d292c9c6606017ce0ed9e1dca26836ab124 /opcodes | |
parent | 96908638c551d9a1dc387bac823bddb7f0952547 (diff) | |
download | gdb-8577e690b528b94d92c5c4136bf2b1f059463c6e.zip gdb-8577e690b528b94d92c5c4136bf2b1f059463c6e.tar.gz gdb-8577e690b528b94d92c5c4136bf2b1f059463c6e.tar.bz2 |
binutils/testsuite/:
* binutils-all/m68k/movem.s: New file.
* binutils-all/m68k/objdump.exp: New file.
include/opcode/:
* m68k.h: Fix comment.
opcodes/:
* m68k-dis.c (m68k_valid_ea): Check validity of all codes.
Diffstat (limited to 'opcodes')
-rw-r--r-- | opcodes/ChangeLog | 4 | ||||
-rw-r--r-- | opcodes/m68k-dis.c | 98 |
2 files changed, 94 insertions, 8 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index d86c615..94a54aa 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,7 @@ +2004-07-09 Andreas Schwab <schwab@suse.de> + + * m68k-dis.c (m68k_valid_ea): Check validity of all codes. + 2004-07-07 Tomer Levi <Tomer.Levi@nsc.com> * Makefile.am (CFILES): Add crx-dis.c, crx-opc.c. diff --git a/opcodes/m68k-dis.c b/opcodes/m68k-dis.c index a3d6d2b..18489e3 100644 --- a/opcodes/m68k-dis.c +++ b/opcodes/m68k-dis.c @@ -826,7 +826,7 @@ print_insn_arg (d, buffer, p0, addr, info) val = fetch_arg (buffer, 's', 6, info); /* If the <ea> is invalid for *d, then reject this match. */ - if (m68k_valid_ea (*d, val) == FALSE) + if (!m68k_valid_ea (*d, val)) return -1; /* Get register number assuming address register. */ @@ -1127,19 +1127,101 @@ print_insn_arg (d, buffer, p0, addr, info) /* Check if an EA is valid for a particular code. This is required for the EMAC instructions since the type of source address determines if it is a EMAC-load instruciton if the EA is mode 2-5, otherwise it - is a non-load EMAC instruction and the bits mean register Ry. */ + is a non-load EMAC instruction and the bits mean register Ry. + A similar case exists for the movem instructions where the register + mask is interpreted differently for different EAs. */ static bfd_boolean m68k_valid_ea (char code, int val) { - int mode; + int mode, mask; +#define M(n0,n1,n2,n3,n4,n5,n6,n70,n71,n72,n73,n74) \ + (n0 | n1 << 1 | n2 << 2 | n3 << 3 | n4 << 4 | n5 << 5 | n6 << 6 \ + | n70 << 7 | n71 << 8 | n72 << 9 | n73 << 10 | n74 << 11) - mode = (val >> 3) & 7; - if (code == '4') - if (!(mode >= 2 && mode <= 5)) - return FALSE; + switch (code) + { + case '*': + mask = M (1,1,1,1,1,1,1,1,1,1,1,1); + break; + case '~': + mask = M (0,0,1,1,1,1,1,1,1,0,0,0); + break; + case '%': + mask = M (1,1,1,1,1,1,1,1,1,0,0,0); + break; + case ';': + mask = M (1,0,1,1,1,1,1,1,1,1,1,1); + break; + case '@': + mask = M (1,0,1,1,1,1,1,1,1,1,1,0); + break; + case '!': + mask = M (0,0,1,0,0,1,1,1,1,1,1,0); + break; + case '&': + mask = M (0,0,1,0,0,1,1,1,1,0,0,0); + break; + case '$': + mask = M (1,0,1,1,1,1,1,1,1,0,0,0); + break; + case '?': + mask = M (0,1,0,0,1,1,1,1,1,0,0,0); + break; + case '/': + mask = M (1,0,1,0,0,1,1,1,1,1,1,0); + break; + case '|': + mask = M (0,0,1,0,0,1,1,1,1,1,1,0); + break; + case '>': + mask = M (0,0,1,0,1,1,1,1,1,1,1,0); + break; + case '<': + mask = M (0,0,1,1,0,1,1,1,1,0,0,0); + break; + case 'm': + mask = M (1,1,1,1,1,0,0,0,0,0,0,0); + break; + case 'n': + mask = M (0,0,0,0,0,1,0,0,0,1,0,0); + break; + case 'o': + mask = M (0,0,0,0,0,0,1,1,1,0,1,1); + break; + case 'p': + mask = M (1,1,1,1,1,1,0,0,0,0,0,0); + break; + case 'q': + mask = M (1,0,1,1,1,1,0,0,0,0,0,0); + break; + case 'v': + mask = M (1,0,1,1,1,1,0,1,1,0,0,0); + break; + case 'b': + mask = M (1,0,1,1,1,1,0,0,0,1,0,0); + break; + case 'w': + mask = M (0,0,1,1,1,1,0,0,0,1,0,0); + break; + case 'y': + mask = M (0,0,1,0,0,1,0,0,0,0,0,0); + break; + case 'z': + mask = M (0,0,1,0,0,1,0,0,0,1,0,0); + break; + case '4': + mask = M (0,0,1,1,1,1,0,0,0,0,0,0); + break; + default: + abort (); + } +#undef M - return TRUE; + mode = (val >> 3) & 7; + if (mode == 7) + mode += val & 7; + return (mask & (1 << mode)) != 0; } /* Fetch BITS bits from a position in the instruction specified by CODE. |