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authorNick Clifton <nickc@redhat.com>2013-05-02 21:06:15 +0000
committerNick Clifton <nickc@redhat.com>2013-05-02 21:06:15 +0000
commit13761a1136a46a4dec5d01e00743e8b267a23c0d (patch)
treea0f519bb2595de8baf6e599c69a95e4cc764a483 /opcodes
parent4925cdd75b2e9f5d1091795d8672f6b5634404a9 (diff)
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* archures.c: Add some more MSP430 machine numbers.
* config.bfd (msp430): Define targ_selvecs. * configure.in: Add bfd_elf32_msp430_ti_vec. * cpu-msp430.c: Add some more MSP430 machine numbers. * elf32-msp430.c Add support for MSP430X relocations. Add support for TI compiler generated relocations. Add support for sym_diff relocations. Add support for relaxing out of range short branches into long branches. Add support for MSP430 attribute section. * reloc.c: Add MSP430X relocations. * targets.c: Add bfd_elf32_msp430_ti_vec. * bfd-in2.h: Regenerate. * configure: Regenerate. * libbfd.h: Regenerate. * readelf.c: Add support for MSP430X architecture. * readelf.exp: Expect -wi test to fail for the MSP430. * config/tc-msp430.c: Add support for the MSP430X architecture. Add code to insert a NOP instruction after any instruction that might change the interrupt state. Add support for the LARGE memory model. Add code to initialise the .MSP430.attributes section. * config/tc-msp430.h: Add support for the MSP430X architecture. * doc/c-msp430.texi: Document the new -mL and -mN command line options. * NEWS: Mention support for the MSP430X architecture. * gas/all/gas.exp: Skip the DIFF1 test for the MSP430. Expect the FORWARD test to pass for the MSP430. Skip the REDEF tests for the MSP430. Expect the 930509A test to fail for the MSP430. * gas/all/sleb128-4.d: Skip for the MSP430. * gas/elf/elf.exp: Set target_machine to msp430 for the MSP430. Skip the EHOPT0 test for the MSP430. Skip the REDEF and EQU-RELOC tests for the MSP430. * gas/elf/section2.e-msp430: New file. * gas/lns/lns-big-delta.d: Remove expectation of 20-bit addresses. * gas/lns/lns.exp: Use alternate LNS COMMON test for the MSP430. * gas/msp430/msp430x.s: New test. * gas/msp430/msp430x.d: Expected disassembly. * gas/msp430/msp430.exp: Run new test. * gas/msp430/opcode.d: Update expected disassembly. * msp430.h: Add MSP430X relocs. Add some more MSP430 machine numbers. Add values used by .MSP430.attributes section. * msp430.h: Add patterns for MSP430X instructions. * Makefile.am: Add emsp430X.c * Makefine.in: Regenerate. * configure.tgt (msp430): Add msp430X emulation. * ldmain.c (multiple_definition): Only disable relaxation if it was enabled by the user. * ldmain.h (RELAXATION_ENABLED_BY_USER): New macro. * emulparams/msp430all.sh: Add support for MSP430X. * emultempl/generic.em: (before_parse): Enable relaxation for the MSP430. * scripttempl/msp430.sc: Reorganize sections. Add .rodata section. * scripttempl/msp430_3.sc: Likewise. * NEWS: Mention support for MSP430X. * ld-elf/flags1.d: Expect this test to pass on the MSP430. * ld-elf/init-fini-arrays.d: Expect this test to fail on the MSP430. * ld-elf/merge.d: Expect this test to pass on the MSP430. * ld-elf/sec64k.exp: Skip these tests for the MSP430. * ld-gc/pr13683.d: Expect this test to fail on the MSP430. * ld-srec/srec.exp: Expect these tests to fail on the MSP430. * ld-undefined/undefined.exp: Expect the UNDEFINED LINE test to fail on the MSP430. * msp430-dis.c: Add support for MSP430X instructions.
Diffstat (limited to 'opcodes')
-rw-r--r--opcodes/ChangeLog4
-rw-r--r--opcodes/msp430-dis.c712
2 files changed, 581 insertions, 135 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 2912765..88f9294 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,7 @@
+2013-05-02 Nick Clifton <nickc@redhat.com>
+
+ * msp430-dis.c: Add support for MSP430X instructions.
+
2013-04-24 Sandra Loosemore <sandra@codesourcery.com>
* nios2-opc.c (nios2_builtin_reg): Rename "fstatus" control register
diff --git a/opcodes/msp430-dis.c b/opcodes/msp430-dis.c
index 71690a3..46da3cc 100644
--- a/opcodes/msp430-dis.c
+++ b/opcodes/msp430-dis.c
@@ -1,7 +1,6 @@
/* Disassemble MSP430 instructions.
- Copyright (C) 2002, 2004, 2005, 2007, 2009, 2010, 2012
- Free Software Foundation, Inc.
-
+ Copyright (C) 2002-2013 Free Software Foundation, Inc.
+
Contributed by Dmitry Diky <diwil@mail.ru>
This file is part of the GNU opcodes library.
@@ -83,26 +82,80 @@ msp430_nooperands (struct msp430_opcode_s *opcode,
}
static int
+print_as2_reg_name (int regno, char * op1, char * comm1,
+ int c2, int c3, int cd)
+{
+ switch (regno)
+ {
+ case 2:
+ sprintf (op1, "#4");
+ sprintf (comm1, "r2 As==10");
+ return c2;
+
+ case 3:
+ sprintf (op1, "#2");
+ sprintf (comm1, "r3 As==10");
+ return c3;
+
+ default:
+ /* Indexed register mode @Rn. */
+ sprintf (op1, "@r%d", regno);
+ return cd;
+ }
+}
+
+static int
+print_as3_reg_name (int regno, char * op1, char * comm1,
+ int c2, int c3, int cd)
+{
+ switch (regno)
+ {
+ case 2:
+ sprintf (op1, "#8");
+ sprintf (comm1, "r2 As==11");
+ return c2;
+
+ case 3:
+ sprintf (op1, "#-1");
+ sprintf (comm1, "r3 As==11");
+ return c3;
+
+ default:
+ /* Post incremented @Rn+. */
+ sprintf (op1, "@r%d+", regno);
+ return cd;
+ }
+}
+
+static int
msp430_singleoperand (disassemble_info *info,
struct msp430_opcode_s *opcode,
bfd_vma addr,
unsigned short insn,
char *op,
char *comm,
+ unsigned short extension_word,
int *cycles)
{
int regs = 0, regd = 0;
int ad = 0, as = 0;
int where = 0;
int cmd_len = 2;
- short dst = 0;
+ int dst = 0;
+ int fmt;
+ int extended_dst = extension_word & 0xf;
regd = insn & 0x0f;
regs = (insn & 0x0f00) >> 8;
as = (insn & 0x0030) >> 4;
ad = (insn & 0x0080) >> 7;
- switch (opcode->fmt)
+ if (opcode->fmt < 0)
+ fmt = (- opcode->fmt) - 1;
+ else
+ fmt = opcode->fmt;
+
+ switch (fmt)
{
case 0: /* Emulated work with dst register. */
if (regs != 2 && regs != 3 && regs != 1)
@@ -146,6 +199,13 @@ msp430_singleoperand (disassemble_info *info,
sprintf (op, "0x%04x", dst);
sprintf (comm, "PC rel. abs addr 0x%04x",
PS ((short) (addr + 2) + dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op, "0x%05x", dst);
+ sprintf (comm, "PC rel. abs addr 0x%05lx",
+ (long)((addr + 2 + dst) & 0xfffff));
+ }
}
else if (regd == 2)
{
@@ -154,12 +214,25 @@ msp430_singleoperand (disassemble_info *info,
cmd_len += 2;
*cycles = 4;
sprintf (op, "&0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op, "&0x%05x", dst & 0xfffff);
+ }
}
else
{
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
*cycles = 4;
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ }
+ else if (dst & 0x8000)
+ dst |= -1 << 16;
sprintf (op, "%d(r%d)", dst, regd);
}
}
@@ -183,51 +256,31 @@ msp430_singleoperand (disassemble_info *info,
}
else if (as == 2)
{
- *cycles = 1;
- if (regd == 2)
- {
- sprintf (op, "#4");
- sprintf (comm, "r2 As==10");
- }
- else if (regd == 3)
- {
- sprintf (op, "#2");
- sprintf (comm, "r3 As==10");
- }
- else
- {
- *cycles = 3;
- /* Indexed register mode @Rn. */
- sprintf (op, "@r%d", regd);
- }
+ * cycles = print_as2_reg_name (regd, op, comm, 1, 1, 3);
}
else if (as == 3)
{
- *cycles = 1;
- if (regd == 2)
- {
- sprintf (op, "#8");
- sprintf (comm, "r2 As==11");
- }
- else if (regd == 3)
- {
- sprintf (op, "#-1");
- sprintf (comm, "r3 As==11");
- }
- else if (regd == 0)
+ if (regd == 0)
{
*cycles = 3;
/* absolute. @pc+ */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
sprintf (op, "#%d", dst);
- sprintf (comm, "#0x%04x", PS (dst));
+ if (dst > 9 || dst < 0)
+ sprintf (comm, "#0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ sprintf (op, "#%d", dst);
+ if (dst > 9 || dst < 0)
+ sprintf (comm, "#0x%05x", dst);
+ }
}
else
- {
- *cycles = 3;
- sprintf (op, "@r%d+", regd);
- }
+ * cycles = print_as3_reg_name (regd, op, comm, 1, 1, 3);
}
else if (as == 1)
{
@@ -240,6 +293,13 @@ msp430_singleoperand (disassemble_info *info,
sprintf (op, "0x%04x", PS (dst));
sprintf (comm, "PC rel. 0x%04x",
PS ((short) addr + 2 + dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op, "0x%05x", dst & 0xffff);
+ sprintf (comm, "PC rel. 0x%05lx",
+ (long)((addr + 2 + dst) & 0xfffff));
+ }
}
else if (regd == 2)
{
@@ -247,6 +307,11 @@ msp430_singleoperand (disassemble_info *info,
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
sprintf (op, "&0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op, "&0x%05x", dst & 0xfffff);
+ }
}
else if (regd == 3)
{
@@ -256,10 +321,20 @@ msp430_singleoperand (disassemble_info *info,
}
else
{
- /* Indexd. */
+ /* Indexed. */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ }
+ else if (dst & 0x8000)
+ dst |= -1 << 16;
sprintf (op, "%d(r%d)", dst, regd);
+ if (dst > 9 || dst < 0)
+ sprintf (comm, "%05x", dst);
}
}
break;
@@ -273,7 +348,7 @@ msp430_singleoperand (disassemble_info *info,
where *= 2;
sprintf (op, "$%+-8d", where + 2);
- sprintf (comm, "abs 0x%x", PS ((short) (addr) + 2 + where));
+ sprintf (comm, "abs 0x%lx", (long) (addr + 2 + where));
*cycles = 2;
return 2;
break;
@@ -293,19 +368,28 @@ msp430_doubleoperand (disassemble_info *info,
char *op2,
char *comm1,
char *comm2,
+ unsigned short extension_word,
int *cycles)
{
int regs = 0, regd = 0;
int ad = 0, as = 0;
int cmd_len = 2;
- short dst = 0;
+ int dst = 0;
+ int fmt;
+ int extended_dst = extension_word & 0xf;
+ int extended_src = (extension_word >> 7) & 0xf;
regd = insn & 0x0f;
regs = (insn & 0x0f00) >> 8;
as = (insn & 0x0030) >> 4;
ad = (insn & 0x0080) >> 7;
- if (opcode->fmt == 0)
+ if (opcode->fmt < 0)
+ fmt = (- opcode->fmt) - 1;
+ else
+ fmt = opcode->fmt;
+
+ if (fmt == 0)
{
/* Special case: rla and rlc are the only 2 emulated instructions that
fall into two operand instructions. */
@@ -343,7 +427,15 @@ msp430_doubleoperand (disassemble_info *info,
sprintf (op1, "0x%04x", PS (dst));
sprintf (comm1, "PC rel. 0x%04x",
PS ((short) addr + 2 + dst));
-
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ sprintf (op1, "0x%05x", dst & 0xfffff);
+ sprintf (comm1, "PC rel. 0x%05lx",
+ (long)((addr + 2 + dst) & 0xfffff));
+ }
}
else if (regd == 2)
{
@@ -356,19 +448,35 @@ msp430_doubleoperand (disassemble_info *info,
cmd_len += 4;
*cycles = 6;
sprintf (op1, "&0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op1, "&0x%05x", dst & 0xfffff);
+ }
}
else
{
/* Indexed. */
dst = msp430dis_opcode (addr + 2, info);
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ }
+ else if (dst & 0x8000)
+ dst |= -1 << 16;
cmd_len += 4;
*cycles = 6;
sprintf (op1, "%d(r%d)", dst, regd);
+ if (dst > 9 || dst < -9)
+ sprintf (comm1, "#0x%05x", dst);
}
}
*op2 = 0;
*comm2 = 0;
+
return cmd_len;
}
@@ -386,7 +494,7 @@ msp430_doubleoperand (disassemble_info *info,
*cycles = 1;
if (regs == 3)
{
- /* Constsnts. */
+ /* Constants. */
sprintf (op1, "#0");
sprintf (comm1, "r3 As==00");
}
@@ -398,56 +506,31 @@ msp430_doubleoperand (disassemble_info *info,
}
else if (as == 2)
{
- *cycles = 1;
-
- if (regs == 2)
- {
- sprintf (op1, "#4");
- sprintf (comm1, "r2 As==10");
- }
- else if (regs == 3)
- {
- sprintf (op1, "#2");
- sprintf (comm1, "r3 As==10");
- }
- else
- {
- *cycles = 2;
-
- /* Indexed register mode @Rn. */
- sprintf (op1, "@r%d", regs);
- }
- if (!regs)
- *cycles = 3;
+ * cycles = print_as2_reg_name (regs, op1, comm1, 1, 1, regs == 0 ? 3 : 2);
}
else if (as == 3)
{
- if (regs == 2)
- {
- sprintf (op1, "#8");
- sprintf (comm1, "r2 As==11");
- *cycles = 1;
- }
- else if (regs == 3)
- {
- sprintf (op1, "#-1");
- sprintf (comm1, "r3 As==11");
- *cycles = 1;
- }
- else if (regs == 0)
+ if (regs == 0)
{
*cycles = 3;
/* Absolute. @pc+. */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
sprintf (op1, "#%d", dst);
- sprintf (comm1, "#0x%04x", PS (dst));
+ if (dst > 9 || dst < 0)
+ sprintf (comm1, "#0x%04x", PS (dst));
+ if (extended_src)
+ {
+ dst |= extended_src << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ sprintf (op1, "#%d", dst);
+ if (dst > 9 || dst < 0)
+ sprintf (comm1, "0x%05x", dst & 0xfffff);
+ }
}
else
- {
- *cycles = 2;
- sprintf (op1, "@r%d+", regs);
- }
+ * cycles = print_as3_reg_name (regs, op1, comm1, 1, 1, 2);
}
else if (as == 1)
{
@@ -460,6 +543,15 @@ msp430_doubleoperand (disassemble_info *info,
sprintf (op1, "0x%04x", PS (dst));
sprintf (comm1, "PC rel. 0x%04x",
PS ((short) addr + 2 + dst));
+ if (extended_src)
+ {
+ dst |= extended_src << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ sprintf (op1, "0x%05x", dst & 0xfffff);
+ sprintf (comm1, "PC rel. 0x%05lx",
+ (long) ((addr + 2 + dst) & 0xfffff));
+ }
}
else if (regs == 2)
{
@@ -469,6 +561,12 @@ msp430_doubleoperand (disassemble_info *info,
cmd_len += 2;
sprintf (op1, "&0x%04x", PS (dst));
sprintf (comm1, "0x%04x", PS (dst));
+ if (extended_src)
+ {
+ dst |= extended_src << 16;
+ sprintf (op1, "&0x%05x", dst & 0xfffff);
+ * comm1 = 0;
+ }
}
else if (regs == 3)
{
@@ -482,7 +580,17 @@ msp430_doubleoperand (disassemble_info *info,
/* Indexed. */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
+ if (extended_src)
+ {
+ dst |= extended_src << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ }
+ else if (dst & 0x8000)
+ dst |= -1 << 16;
sprintf (op1, "%d(r%d)", dst, regs);
+ if (dst > 9 || dst < -9)
+ sprintf (comm1, "0x%05x", dst);
}
}
@@ -517,6 +625,15 @@ msp430_doubleoperand (disassemble_info *info,
sprintf (op2, "0x%04x", PS (dst));
sprintf (comm2, "PC rel. 0x%04x",
PS ((short) addr + cmd_len + dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ sprintf (op2, "0x%05x", dst & 0xfffff);
+ sprintf (comm2, "PC rel. 0x%05lx",
+ (long)((addr + cmd_len + dst) & 0xfffff));
+ }
cmd_len += 2;
}
else if (regd == 2)
@@ -525,11 +642,28 @@ msp430_doubleoperand (disassemble_info *info,
dst = msp430dis_opcode (addr + cmd_len, info);
cmd_len += 2;
sprintf (op2, "&0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ sprintf (op2, "&0x%05x", dst & 0xfffff);
+ }
}
else
{
dst = msp430dis_opcode (addr + cmd_len, info);
cmd_len += 2;
+ if (dst & 0x8000)
+ dst |= -1 << 16;
+ if (dst > 9 || dst < 0)
+ sprintf (comm2, "0x%04x", PS (dst));
+ if (extended_dst)
+ {
+ dst |= extended_dst << 16;
+ if (dst & 0x80000)
+ dst |= -1 << 20;
+ if (dst > 9 || dst < 0)
+ sprintf (comm2, "0x%05x", dst & 0xfffff);
+ }
sprintf (op2, "%d(r%d)", dst, regd);
}
}
@@ -577,40 +711,11 @@ msp430_branchinstr (disassemble_info *info,
}
else if (as == 2)
{
- if (regs == 2)
- {
- *cycles = 2;
- sprintf (op1, "#4");
- sprintf (comm1, "r2 As==10");
- }
- else if (regs == 3)
- {
- *cycles = 1;
- sprintf (op1, "#2");
- sprintf (comm1, "r3 As==10");
- }
- else
- {
- /* Indexed register mode @Rn. */
- *cycles = 2;
- sprintf (op1, "@r%d", regs);
- }
+ * cycles = print_as2_reg_name (regs, op1, comm1, 2, 1, 2);
}
else if (as == 3)
{
- if (regs == 2)
- {
- *cycles = 1;
- sprintf (op1, "#8");
- sprintf (comm1, "r2 As==11");
- }
- else if (regs == 3)
- {
- *cycles = 1;
- sprintf (op1, "#-1");
- sprintf (comm1, "r3 As==11");
- }
- else if (regs == 0)
+ if (regs == 0)
{
/* Absolute. @pc+ */
*cycles = 3;
@@ -619,10 +724,7 @@ msp430_branchinstr (disassemble_info *info,
sprintf (op1, "#0x%04x", PS (dst));
}
else
- {
- *cycles = 2;
- sprintf (op1, "@r%d+", regs);
- }
+ * cycles = print_as3_reg_name (regs, op1, comm1, 1, 1, 2);
}
else if (as == 1)
{
@@ -653,9 +755,11 @@ msp430_branchinstr (disassemble_info *info,
}
else
{
- /* Indexd. */
+ /* Indexed. */
dst = msp430dis_opcode (addr + 2, info);
cmd_len += 2;
+ if (dst & 0x8000)
+ dst |= -1 << 16;
sprintf (op1, "%d(r%d)", dst, regs);
}
}
@@ -663,6 +767,82 @@ msp430_branchinstr (disassemble_info *info,
return cmd_len;
}
+static int
+msp430x_calla_instr (disassemble_info * info,
+ bfd_vma addr,
+ unsigned short insn,
+ char * op1,
+ char * comm1,
+ int * cycles)
+{
+ unsigned int ureg = insn & 0xf;
+ int reg = insn & 0xf;
+ int am = (insn & 0xf0) >> 4;
+ int cmd_len = 2;
+ unsigned short udst = 0;
+ short dst = 0;
+
+ switch (am)
+ {
+ case 4: /* CALLA Rdst */
+ *cycles = 1;
+ sprintf (op1, "r%d", reg);
+ break;
+
+ case 5: /* CALLA x(Rdst) */
+ *cycles = 3;
+ dst = msp430dis_opcode (addr + 2, info);
+ cmd_len += 2;
+ sprintf (op1, "%d(r%d)", dst, reg);
+ if (reg == 0)
+ sprintf (comm1, "PC rel. 0x%05lx", (long) (addr + 2 + dst));
+ else
+ sprintf (comm1, "0x%05x", dst);
+ break;
+
+ case 6: /* CALLA @Rdst */
+ *cycles = 2;
+ sprintf (op1, "@r%d", reg);
+ break;
+
+ case 7: /* CALLA @Rdst+ */
+ *cycles = 2;
+ sprintf (op1, "@r%d+", reg);
+ break;
+
+ case 8: /* CALLA &abs20 */
+ udst = msp430dis_opcode (addr + 2, info);
+ cmd_len += 2;
+ *cycles = 4;
+ sprintf (op1, "&%d", (ureg << 16) + udst);
+ sprintf (comm1, "0x%05x", (ureg << 16) + udst);
+ break;
+
+ case 9: /* CALLA pcrel-sym */
+ dst = msp430dis_opcode (addr + 2, info);
+ cmd_len += 2;
+ *cycles = 4;
+ sprintf (op1, "%d(PC)", (reg << 16) + dst);
+ sprintf (comm1, "PC rel. 0x%05lx",
+ (long) (addr + 2 + dst + (reg << 16)));
+ break;
+
+ case 11: /* CALLA #imm20 */
+ udst = msp430dis_opcode (addr + 2, info);
+ cmd_len += 2;
+ *cycles = 4;
+ sprintf (op1, "#%d", (ureg << 16) + udst);
+ sprintf (comm1, "0x%05x", (ureg << 16) + udst);
+ break;
+
+ default:
+ strcpy (comm1, _("unercognised CALLA addressing mode"));
+ return -1;
+ }
+
+ return cmd_len;
+}
+
int
print_insn_msp430 (bfd_vma addr, disassemble_info *info)
{
@@ -674,10 +854,14 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
unsigned short insn;
int cycles = 0;
char *bc = "";
- char dinfo[32]; /* Debug purposes. */
+ unsigned short extension_word = 0;
insn = msp430dis_opcode (addr, info);
- sprintf (dinfo, "0x%04x", insn);
+ if (insn == (unsigned short) -1)
+ {
+ prin (stream, ".word 0xffff; ????");
+ return 2;
+ }
if (((int) addr & 0xffff) > 0xffdf)
{
@@ -688,6 +872,20 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
*comm1 = 0;
*comm2 = 0;
+ /* Check for an extension word. */
+ if ((insn & 0xf800) == 0x1800)
+ {
+ extension_word = insn;
+ addr += 2;
+ insn = msp430dis_opcode (addr, info);
+ if (insn == (unsigned short) -1)
+ {
+ prin (stream, ".word 0x%04x, 0xffff; ????",
+ extension_word);
+ return 4;
+ }
+ }
+
for (opcode = msp430_opcodes; opcode->name; opcode++)
{
if ((insn & opcode->bin_mask) == opcode->bin_opcode
@@ -699,10 +897,11 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
*comm2 = 0;
/* r0 as destination. Ad should be zero. */
- if (opcode->insn_opnumb == 3 && (insn & 0x000f) == 0
- && (0x0080 & insn) == 0)
+ if (opcode->insn_opnumb == 3
+ && (insn & 0x000f) == 0
+ && (insn & 0x0080) == 0)
{
- cmd_len =
+ cmd_len +=
msp430_branchinstr (info, opcode, addr, insn, op1, comm1,
&cycles);
if (cmd_len)
@@ -711,22 +910,244 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
switch (opcode->insn_opnumb)
{
+ int n;
+ int reg;
+
+ case 4:
+ cmd_len += msp430x_calla_instr (info, addr, insn,
+ op1, comm1, & cycles);
+ break;
+
+ case 5: /* PUSHM/POPM */
+ n = (insn & 0xf0) >> 4;
+ reg = (insn & 0xf);
+
+ sprintf (op1, "#%d", n + 1);
+ if (opcode->bin_opcode == 0x1400)
+ /* PUSHM */
+ sprintf (op2, "r%d", reg);
+ else
+ /* POPM */
+ sprintf (op2, "r%d", reg + n);
+ if (insn & 0x100)
+ sprintf (comm1, "16-bit words");
+ else
+ {
+ sprintf (comm1, "20-bit words");
+ bc =".a";
+ }
+
+ cycles = 2; /*FIXME*/
+ cmd_len = 2;
+ break;
+
+ case 6: /* RRAM, RRCM, RRUM, RLAM. */
+ n = ((insn >> 10) & 0x3) + 1;
+ reg = (insn & 0xf);
+ if ((insn & 0x10) == 0)
+ bc =".a";
+ sprintf (op1, "#%d", n);
+ sprintf (op2, "r%d", reg);
+ cycles = 2; /*FIXME*/
+ cmd_len = 2;
+ break;
+
+ case 8: /* ADDA, CMPA, SUBA. */
+ reg = (insn & 0xf);
+ n = (insn >> 8) & 0xf;
+ if (insn & 0x40)
+ {
+ sprintf (op1, "r%d", n);
+ cmd_len = 2;
+ }
+ else
+ {
+ n <<= 16;
+ n |= msp430dis_opcode (addr + 2, info);
+ sprintf (op1, "#%d", n);
+ if (n > 9 || n < 0)
+ sprintf (comm1, "0x%05x", n);
+ cmd_len = 4;
+ }
+ sprintf (op2, "r%d", reg);
+ cycles = 2; /*FIXME*/
+ break;
+
+ case 9: /* MOVA */
+ reg = (insn & 0xf);
+ n = (insn >> 8) & 0xf;
+ switch ((insn >> 4) & 0xf)
+ {
+ case 0: /* MOVA @Rsrc, Rdst */
+ cmd_len = 2;
+ sprintf (op1, "@r%d", n);
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ break;
+
+ case 1: /* MOVA @Rsrc+, Rdst */
+ cmd_len = 2;
+ if (strcmp (opcode->name, "reta") != 0)
+ {
+ sprintf (op1, "@r%d+", n);
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ }
+ break;
+
+ case 2: /* MOVA &abs20, Rdst */
+ cmd_len = 4;
+ n <<= 16;
+ n |= msp430dis_opcode (addr + 2, info);
+ sprintf (op1, "&%d", n);
+ if (n > 9 || n < 0)
+ sprintf (comm1, "0x%05x", n);
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ break;
+
+ case 3: /* MOVA x(Rsrc), Rdst */
+ cmd_len = 4;
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ reg = n;
+ n = msp430dis_opcode (addr + 2, info);
+ if (n & 0x8000)
+ n |= -1 << 16;
+ sprintf (op1, "%d(r%d)", n, reg);
+ if (n > 9 || n < 0)
+ {
+ if (reg == 0)
+ sprintf (comm1, "PC rel. 0x%05lx",
+ (long) (addr + 2 + n));
+ else
+ sprintf (comm1, "0x%05x", n);
+ }
+ break;
+
+ case 6: /* MOVA Rsrc, &abs20 */
+ cmd_len = 4;
+ reg <<= 16;
+ reg |= msp430dis_opcode (addr + 2, info);
+ sprintf (op1, "r%d", n);
+ sprintf (op2, "&%d", reg);
+ if (reg > 9 || reg < 0)
+ sprintf (comm2, "0x%05x", reg);
+ break;
+
+ case 7: /* MOVA Rsrc, x(Rdst) */
+ cmd_len = 4;
+ sprintf (op1, "r%d", n);
+ n = msp430dis_opcode (addr + 2, info);
+ if (n & 0x8000)
+ n |= -1 << 16;
+ sprintf (op2, "%d(r%d)", n, reg);
+ if (n > 9 || n < 0)
+ {
+ if (reg == 0)
+ sprintf (comm2, "PC rel. 0x%05lx",
+ (long) (addr + 2 + n));
+ else
+ sprintf (comm2, "0x%05x", n);
+ }
+ break;
+
+ case 8: /* MOVA #imm20, Rdst */
+ cmd_len = 4;
+ n <<= 16;
+ n |= msp430dis_opcode (addr + 2, info);
+ if (n & 0x80000)
+ n |= -1 << 20;
+ sprintf (op1, "#%d", n);
+ if (n > 9 || n < 0)
+ sprintf (comm1, "0x%05x", n);
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ break;
+
+ case 12: /* MOVA Rsrc, Rdst */
+ cmd_len = 2;
+ sprintf (op1, "r%d", n);
+ if (strcmp (opcode->name, "bra") != 0)
+ sprintf (op2, "r%d", reg);
+ break;
+
+ default:
+ break;
+ }
+ cycles = 2; /* FIXME */
+ break;
+ }
+
+ if (cmd_len)
+ break;
+
+ switch (opcode->insn_opnumb)
+ {
case 0:
- cmd_len = msp430_nooperands (opcode, addr, insn, comm1, &cycles);
+ cmd_len += msp430_nooperands (opcode, addr, insn, comm1, &cycles);
break;
case 2:
- cmd_len =
+ cmd_len +=
msp430_doubleoperand (info, opcode, addr, insn, op1, op2,
- comm1, comm2, &cycles);
+ comm1, comm2,
+ extension_word,
+ &cycles);
if (insn & BYTE_OPERATION)
- bc = ".b";
+ {
+ if (extension_word != 0 && ((extension_word & BYTE_OPERATION) == 0))
+ bc = ".a";
+ else
+ bc = ".b";
+ }
+ else if (extension_word)
+ {
+ if (extension_word & (1 << 6))
+ bc = ".w";
+ else
+ {
+ bc = ".?";
+ sprintf (comm2, _("Reserved use of A/L and B/W bits detected"));
+ }
+ }
+
break;
case 1:
- cmd_len =
+ cmd_len +=
msp430_singleoperand (info, opcode, addr, insn, op1, comm1,
+ extension_word,
&cycles);
- if (insn & BYTE_OPERATION && opcode->fmt != 3)
- bc = ".b";
+ if (extension_word
+ && (strcmp (opcode->name, "swpb") == 0
+ || strcmp (opcode->name, "sxt") == 0))
+ {
+ if (insn & BYTE_OPERATION)
+ {
+ bc = ".?";
+ sprintf (comm2, _("Reserved use of A/L and B/W bits detected"));
+ }
+ else if (extension_word & BYTE_OPERATION)
+ bc = ".w";
+ else
+ bc = ".a";
+ }
+ else if (insn & BYTE_OPERATION && opcode->fmt != 3)
+ {
+ if (extension_word != 0 && ((extension_word & BYTE_OPERATION) == 0))
+ bc = ".a";
+ else
+ bc = ".b";
+ }
+ else if (extension_word)
+ {
+ if (extension_word & (1 << 6))
+ bc = ".w";
+ else
+ {
+ bc = ".?";
+ sprintf (comm2, _("Reserved use of A/L and B/W bits detected"));
+ }
+ }
break;
default:
break;
@@ -737,16 +1158,33 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
break;
}
- dinfo[5] = 0;
-
if (cmd_len < 1)
{
/* Unknown opcode, or invalid combination of operands. */
+ if (extension_word)
+ {
+ prin (stream, ".word 0x%04x, 0x%04x; ????", extension_word, PS (insn));
+ if (*comm1)
+ prin (stream, "\t %s", comm1);
+ return 4;
+ }
(*prin) (stream, ".word 0x%04x; ????", PS (insn));
return 2;
}
- (*prin) (stream, "%s%s", opcode->name, bc);
+ /* Display the repeat count (if set) for extended register mode. */
+ if (cmd_len == 2 && ((extension_word & 0xf) != 0))
+ {
+ if (extension_word & (1 << 7))
+ prin (stream, "rpt r%d { ", extension_word & 0xf);
+ else
+ prin (stream, "rpt #%d { ", (extension_word & 0xf) + 1);
+ }
+
+ if (extension_word && opcode->name[strlen (opcode->name) - 1] != 'x')
+ (*prin) (stream, "%sx%s", opcode->name, bc);
+ else
+ (*prin) (stream, "%s%s", opcode->name, bc);
if (*op1)
(*prin) (stream, "\t%s", op1);
@@ -783,5 +1221,9 @@ print_insn_msp430 (bfd_vma addr, disassemble_info *info)
(*prin) (stream, ",");
if (*comm2)
(*prin) (stream, " %s", comm2);
+
+ if (extension_word)
+ cmd_len += 2;
+
return cmd_len;
}