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authordenny <denny@cvs.openbsd.org>1997-06-09 23:04:27 +0000
committerdenny <denny@cvs.openbsd.org>1997-06-09 23:04:27 +0000
commit5f018e551f35fedf6f5e378b18ecbcdf3687b08e (patch)
tree4ee5d109ca90a0e547c193a80c9b4f39a0ec757f /sys/arch
parent6c6d3781af9d5bb7d6c67c6be0cf098efa569db3 (diff)
Diassemble move16, and fix spelling of "UNKNOWN"
Diffstat (limited to 'sys/arch')
-rw-r--r--sys/arch/m68k/m68k/db_disasm.c51
1 files changed, 49 insertions, 2 deletions
diff --git a/sys/arch/m68k/m68k/db_disasm.c b/sys/arch/m68k/m68k/db_disasm.c
index a48b1d18c55..d34d4960f09 100644
--- a/sys/arch/m68k/m68k/db_disasm.c
+++ b/sys/arch/m68k/m68k/db_disasm.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: db_disasm.c,v 1.5 1997/01/13 11:51:12 niklas Exp $ */
+/* $OpenBSD: db_disasm.c,v 1.6 1997/06/09 23:04:26 denny Exp $ */
/* $NetBSD: db_disasm.c,v 1.19 1996/10/30 08:22:39 is Exp $ */
/*
@@ -111,6 +111,7 @@ void opcode_1110 __P((dis_buffer_t *, u_short));
void opcode_fpu __P((dis_buffer_t *, u_short));
void opcode_mmu __P((dis_buffer_t *, u_short));
void opcode_mmu040 __P((dis_buffer_t *, u_short));
+void opcode_move16 __P((dis_buffer_t *, u_short));
/* subs of groups */
void opcode_movec __P((dis_buffer_t *, u_short));
@@ -1328,6 +1329,9 @@ opcode_coproc(dbuf, opc)
case 2:
opcode_mmu040(dbuf, opc);
return;
+ case 3:
+ opcode_move16(dbuf, opc);
+ return;
}
switch (BITFIELD(opc,8,6)) {
case 0:
@@ -1345,7 +1349,7 @@ opcode_coproc(dbuf, opc)
case 5:
default:
}
- addstr(dbuf, "UKNOWN COPROC OPCODE");
+ addstr(dbuf, "UNKNOWN COPROC OPCODE");
return;
}
@@ -2276,6 +2280,49 @@ opcode_movec(dbuf, opc)
}
}
+void
+opcode_move16(dbuf, opc)
+ dis_buffer_t *dbuf;
+ u_short opc;
+{
+ u_short ext;
+
+ addstr(dbuf, "move16\t");
+
+ if (ISBITSET(opc, 5)) {
+ PRINT_AREG(dbuf, BITFIELD(opc,2,0));
+ addstr(dbuf, "@+,");
+ ext = *(dbuf->val + 1);
+ PRINT_AREG(dbuf, BITFIELD(ext,14,12));
+ addstr(dbuf, "@+");
+ dbuf->used++;
+ } else {
+ switch (BITFIELD(opc,4,3)) {
+ case 0:
+ PRINT_AREG(dbuf, BITFIELD(opc,2,0));
+ addstr(dbuf, "@+,");
+ get_immed(dbuf, SIZE_LONG);
+ break;
+ case 1:
+ get_immed(dbuf, SIZE_LONG);
+ addchar(',');
+ PRINT_AREG(dbuf, BITFIELD(opc,2,0));
+ addstr(dbuf, "@+");
+ break;
+ case 2:
+ PRINT_AREG(dbuf, BITFIELD(opc,2,0));
+ addstr(dbuf, "@,");
+ get_immed(dbuf, SIZE_LONG);
+ break;
+ case 3:
+ get_immed(dbuf, SIZE_LONG);
+ addchar(',');
+ PRINT_AREG(dbuf, BITFIELD(opc,2,0));
+ addchar('@');
+ break;
+ }
+ }
+}
/*
* copy const string 's' into ``dbuf''->casm