aboutsummaryrefslogtreecommitdiff
path: root/opcodes/s12z-dis.c
diff options
context:
space:
mode:
authorJohn Darrington <john@darrington.wattle.id.au>2018-05-18 15:26:18 +0100
committerNick Clifton <nickc@redhat.com>2018-05-18 15:26:18 +0100
commit7b4ae824289504c173a597e86a00ceab452095b7 (patch)
tree98efc51666beecffead172a6c29c4c1f75b14174 /opcodes/s12z-dis.c
parent011b32fd4270fb7111ee1f63695ccd44562ee7df (diff)
downloadgdb-7b4ae824289504c173a597e86a00ceab452095b7.zip
gdb-7b4ae824289504c173a597e86a00ceab452095b7.tar.gz
gdb-7b4ae824289504c173a597e86a00ceab452095b7.tar.bz2
Add support for the Freescale s12z processor.
bfd * Makefile.am: Add s12z files. * Makefile.in: Regenerate. * archures.c: Add bfd_s12z_arch. * bfd-in.h: Add exports of bfd_putb24 and bfd_putl24. * bfd-in2.h: Regenerate. * config.bfd: Add s12z target. * configure.ac: Add s12z target. * configure: Regenerate. * cpu-s12z.c: New file. * elf32-s12z.c: New file. * libbfd.c (bfd_putb24): New function. (bfd_putl24): New function. * libbfd.h: Regenerate. * reloc.c: Add s12z relocations. (bfd_get_reloc_size): Handle size 5 relocs. * targets.c: Add s12z_elf32_vec. opcodes * Makefile.am: Add support for s12z architecture. * configure.ac: Likewise. * disassemble.c: Likewise. * disassemble.h: Likewise. * Makefile.in: Regenerate. * configure: Regenerate. * s12z-dis.c: New file. * s12z.h: New file. include * elf/s12z.h: New header. ld * Makefile.am: Add support for s12z architecture. * configure.tgt: Likewise. * Makefile.in: Regenerate. * emulparams/m9s12zelf.sh: New file. * scripttempl/elfm9s12z.sc: New file. * testsuite/ld-discard/static.d: Expect to fail for the s12z target. * testsuite/ld-elf/endsym.d: Likewise. * testsuite/ld-elf/merge.d: Likewise. * testsuite/ld-elf/pr14926.d: Skip for the s12z target. * testsuite/ld-elf/sec64k.exp: Likewise. * testsuite/ld-s12z: New directory. * testsuite/ld-s12z/opr-linking.d: New file. * testsuite/ld-s12z/opr-linking.s: New file. * testsuite/ld-s12z/relative-linking.d: New file. * testsuite/ld-s12z/relative-linking.s: New file. * testsuite/ld-s12z/z12s.exp: New file. gas * Makefile.am: Add support for s12z target. * Makefile.in: Regenerate. * NEWS: Mention the new support. * config/tc-s12z.c: New file. * config/tc-s12z.h: New file. * configure.tgt: Add s12z support. * doc/Makefile.am: Likewise. * doc/Makefile.in: Regenerate. * doc/all.texi: Add s12z documentation. * doc/as.textinfo: Likewise. * doc/c-s12z.texi: New file. * testsuite/gas/s12z: New directory. * testsuite/gas/s12z/abs.d: New file. * testsuite/gas/s12z/abs.s: New file. * testsuite/gas/s12z/adc-imm.d: New file. * testsuite/gas/s12z/adc-imm.s: New file. * testsuite/gas/s12z/adc-opr.d: New file. * testsuite/gas/s12z/adc-opr.s: New file. * testsuite/gas/s12z/add-imm.d: New file. * testsuite/gas/s12z/add-imm.s: New file. * testsuite/gas/s12z/add-opr.d: New file. * testsuite/gas/s12z/add-opr.s: New file. * testsuite/gas/s12z/and-imm.d: New file. * testsuite/gas/s12z/and-imm.s: New file. * testsuite/gas/s12z/and-opr.d: New file. * testsuite/gas/s12z/and-opr.s: New file. * testsuite/gas/s12z/and-or-cc.d: New file. * testsuite/gas/s12z/and-or-cc.s: New file. * testsuite/gas/s12z/bfext-special.d: New file. * testsuite/gas/s12z/bfext-special.s: New file. * testsuite/gas/s12z/bfext.d: New file. * testsuite/gas/s12z/bfext.s: New file. * testsuite/gas/s12z/bit-manip.d: New file. * testsuite/gas/s12z/bit-manip.s: New file. * testsuite/gas/s12z/bit.d: New file. * testsuite/gas/s12z/bit.s: New file. * testsuite/gas/s12z/bra-expression-defined.d: New file. * testsuite/gas/s12z/bra-expression-defined.s: New file. * testsuite/gas/s12z/bra-expression-undef.d: New file. * testsuite/gas/s12z/bra-expression-undef.s: New file. * testsuite/gas/s12z/bra.d: New file. * testsuite/gas/s12z/bra.s: New file. * testsuite/gas/s12z/brclr-symbols.d: New file. * testsuite/gas/s12z/brclr-symbols.s: New file. * testsuite/gas/s12z/brset-clr-opr-imm-rel.d: New file. * testsuite/gas/s12z/brset-clr-opr-imm-rel.s: New file. * testsuite/gas/s12z/brset-clr-opr-reg-rel.d: New file. * testsuite/gas/s12z/brset-clr-opr-reg-rel.s: New file. * testsuite/gas/s12z/brset-clr-reg-imm-rel.d: New file. * testsuite/gas/s12z/brset-clr-reg-imm-rel.s: New file. * testsuite/gas/s12z/brset-clr-reg-reg-rel.d: New file. * testsuite/gas/s12z/brset-clr-reg-reg-rel.s: New file. * testsuite/gas/s12z/clb.d: New file. * testsuite/gas/s12z/clb.s: New file. * testsuite/gas/s12z/clr-opr.d: New file. * testsuite/gas/s12z/clr-opr.s: New file. * testsuite/gas/s12z/clr.d: New file. * testsuite/gas/s12z/clr.s: New file. * testsuite/gas/s12z/cmp-imm.d: New file. * testsuite/gas/s12z/cmp-imm.s: New file. * testsuite/gas/s12z/cmp-opr-inc.d: New file. * testsuite/gas/s12z/cmp-opr-inc.s: New file. * testsuite/gas/s12z/cmp-opr-rdirect.d: New file. * testsuite/gas/s12z/cmp-opr-rdirect.s: New file. * testsuite/gas/s12z/cmp-opr-reg.d: New file. * testsuite/gas/s12z/cmp-opr-reg.s: New file. * testsuite/gas/s12z/cmp-opr-rindirect.d: New file. * testsuite/gas/s12z/cmp-opr-rindirect.s: New file. * testsuite/gas/s12z/cmp-opr-sxe4.d: New file. * testsuite/gas/s12z/cmp-opr-sxe4.s: New file. * testsuite/gas/s12z/cmp-opr-xys.d: New file. * testsuite/gas/s12z/cmp-opr-xys.s: New file. * testsuite/gas/s12z/cmp-s-imm.d: New file. * testsuite/gas/s12z/cmp-s-imm.s: New file. * testsuite/gas/s12z/cmp-s-opr.d: New file. * testsuite/gas/s12z/cmp-s-opr.s: New file. * testsuite/gas/s12z/cmp-xy.d: New file. * testsuite/gas/s12z/cmp-xy.s: New file. * testsuite/gas/s12z/com-opr.d: New file. * testsuite/gas/s12z/com-opr.s: New file. * testsuite/gas/s12z/complex-shifts.d: New file. * testsuite/gas/s12z/complex-shifts.s: New file. * testsuite/gas/s12z/db-tb-cc-opr.d: New file. * testsuite/gas/s12z/db-tb-cc-opr.s: New file. * testsuite/gas/s12z/db-tb-cc-reg.d: New file. * testsuite/gas/s12z/db-tb-cc-reg.s: New file. * testsuite/gas/s12z/dbCC.d: New file. * testsuite/gas/s12z/dbCC.s: New file. * testsuite/gas/s12z/dec-opr.d: New file. * testsuite/gas/s12z/dec-opr.s: New file. * testsuite/gas/s12z/dec.d: New file. * testsuite/gas/s12z/dec.s: New file. * testsuite/gas/s12z/div.d: New file. * testsuite/gas/s12z/div.s: New file. * testsuite/gas/s12z/eor.d: New file. * testsuite/gas/s12z/eor.s: New file. * testsuite/gas/s12z/exg.d: New file. * testsuite/gas/s12z/exg.s: New file. * testsuite/gas/s12z/ext24-ld-xy.d: New file. * testsuite/gas/s12z/ext24-ld-xy.s: New file. * testsuite/gas/s12z/inc-opr.d: New file. * testsuite/gas/s12z/inc-opr.s: New file. * testsuite/gas/s12z/inc.d: New file. * testsuite/gas/s12z/inc.s: New file. * testsuite/gas/s12z/inh.d: New file. * testsuite/gas/s12z/inh.s: New file. * testsuite/gas/s12z/jmp.d: New file. * testsuite/gas/s12z/jmp.s: New file. * testsuite/gas/s12z/jsr.d: New file. * testsuite/gas/s12z/jsr.s: New file. * testsuite/gas/s12z/ld-imm-page2.d: New file. * testsuite/gas/s12z/ld-imm-page2.s: New file. * testsuite/gas/s12z/ld-imm.d: New file. * testsuite/gas/s12z/ld-imm.s: New file. * testsuite/gas/s12z/ld-immu18.d: New file. * testsuite/gas/s12z/ld-immu18.s: New file. * testsuite/gas/s12z/ld-large-direct.d: New file. * testsuite/gas/s12z/ld-large-direct.s: New file. * testsuite/gas/s12z/ld-opr.d: New file. * testsuite/gas/s12z/ld-opr.s: New file. * testsuite/gas/s12z/ld-s-opr.d: New file. * testsuite/gas/s12z/ld-s-opr.s: New file. * testsuite/gas/s12z/ld-small-direct.d: New file. * testsuite/gas/s12z/ld-small-direct.s: New file. * testsuite/gas/s12z/lea-immu18.d: New file. * testsuite/gas/s12z/lea-immu18.s: New file. * testsuite/gas/s12z/lea.d: New file. * testsuite/gas/s12z/lea.s: New file. * testsuite/gas/s12z/mac.d: New file. * testsuite/gas/s12z/mac.s: New file. * testsuite/gas/s12z/min-max.d: New file. * testsuite/gas/s12z/min-max.s: New file. * testsuite/gas/s12z/mod.d: New file. * testsuite/gas/s12z/mod.s: New file. * testsuite/gas/s12z/mov.d: New file. * testsuite/gas/s12z/mov.s: New file. * testsuite/gas/s12z/mul-imm.d: New file. * testsuite/gas/s12z/mul-imm.s: New file. * testsuite/gas/s12z/mul-opr-opr.d: New file. * testsuite/gas/s12z/mul-opr-opr.s: New file. * testsuite/gas/s12z/mul-opr.d: New file. * testsuite/gas/s12z/mul-opr.s: New file. * testsuite/gas/s12z/mul-reg.d: New file. * testsuite/gas/s12z/mul-reg.s: New file. * testsuite/gas/s12z/mul.d: New file. * testsuite/gas/s12z/mul.s: New file. * testsuite/gas/s12z/neg-opr.d: New file. * testsuite/gas/s12z/neg-opr.s: New file. * testsuite/gas/s12z/not-so-simple-shifts.d: New file. * testsuite/gas/s12z/not-so-simple-shifts.s: New file. * testsuite/gas/s12z/opr-18u.d: New file. * testsuite/gas/s12z/opr-18u.s: New file. * testsuite/gas/s12z/opr-expr.d: New file. * testsuite/gas/s12z/opr-expr.s: New file. * testsuite/gas/s12z/opr-ext-18.d: New file. * testsuite/gas/s12z/opr-ext-18.s: New file. * testsuite/gas/s12z/opr-idx-24-reg.d: New file. * testsuite/gas/s12z/opr-idx-24-reg.s: New file. * testsuite/gas/s12z/opr-idx3-reg.d: New file. * testsuite/gas/s12z/opr-idx3-reg.s: New file. * testsuite/gas/s12z/opr-idx3-xysp-24.d: New file. * testsuite/gas/s12z/opr-idx3-xysp-24.s: New file. * testsuite/gas/s12z/opr-indirect-expr.d: New file. * testsuite/gas/s12z/opr-indirect-expr.s: New file. * testsuite/gas/s12z/opr-symbol.d: New file. * testsuite/gas/s12z/opr-symbol.s: New file. * testsuite/gas/s12z/or-imm.d: New file. * testsuite/gas/s12z/or-imm.s: New file. * testsuite/gas/s12z/or-opr.d: New file. * testsuite/gas/s12z/or-opr.s: New file. * testsuite/gas/s12z/p2-mul.d: New file. * testsuite/gas/s12z/p2-mul.s: New file. * testsuite/gas/s12z/page2-inh.d: New file. * testsuite/gas/s12z/page2-inh.s: New file. * testsuite/gas/s12z/psh-pul.d: New file. * testsuite/gas/s12z/psh-pul.s: New file. * testsuite/gas/s12z/qmul.d: New file. * testsuite/gas/s12z/qmul.s: New file. * testsuite/gas/s12z/rotate.d: New file. * testsuite/gas/s12z/rotate.s: New file. * testsuite/gas/s12z/s12z.exp: New file. * testsuite/gas/s12z/sat.d: New file. * testsuite/gas/s12z/sat.s: New file. * testsuite/gas/s12z/sbc-imm.d: New file. * testsuite/gas/s12z/sbc-imm.s: New file. * testsuite/gas/s12z/sbc-opr.d: New file. * testsuite/gas/s12z/sbc-opr.s: New file. * testsuite/gas/s12z/shift.d: New file. * testsuite/gas/s12z/shift.s: New file. * testsuite/gas/s12z/simple-shift.d: New file. * testsuite/gas/s12z/simple-shift.s: New file. * testsuite/gas/s12z/single-ops.d: New file. * testsuite/gas/s12z/single-ops.s: New file. * testsuite/gas/s12z/specd6.d: New file. * testsuite/gas/s12z/specd6.s: New file. * testsuite/gas/s12z/st-large-direct.d: New file. * testsuite/gas/s12z/st-large-direct.s: New file. * testsuite/gas/s12z/st-opr.d: New file. * testsuite/gas/s12z/st-opr.s: New file. * testsuite/gas/s12z/st-s-opr.d: New file. * testsuite/gas/s12z/st-s-opr.s: New file. * testsuite/gas/s12z/st-small-direct.d: New file. * testsuite/gas/s12z/st-small-direct.s: New file. * testsuite/gas/s12z/st-xy.d: New file. * testsuite/gas/s12z/st-xy.s: New file. * testsuite/gas/s12z/sub-imm.d: New file. * testsuite/gas/s12z/sub-imm.s: New file. * testsuite/gas/s12z/sub-opr.d: New file. * testsuite/gas/s12z/sub-opr.s: New file. * testsuite/gas/s12z/tfr.d: New file. * testsuite/gas/s12z/tfr.s: New file. * testsuite/gas/s12z/trap.d: New file. * testsuite/gas/s12z/trap.s: New file. binutils* readelf.c: Add support for s12z architecture. * testsuite/lib/binutils-common.exp (is_elf_format): Excluse s12z targets.
Diffstat (limited to 'opcodes/s12z-dis.c')
-rw-r--r--opcodes/s12z-dis.c2672
1 files changed, 2672 insertions, 0 deletions
diff --git a/opcodes/s12z-dis.c b/opcodes/s12z-dis.c
new file mode 100644
index 0000000..4512311
--- /dev/null
+++ b/opcodes/s12z-dis.c
@@ -0,0 +1,2672 @@
+/* s12z-dis.c -- Freescale S12Z disassembly
+ Copyright (C) 2018 Free Software Foundation, Inc.
+
+ This file is part of the GNU opcodes library.
+
+ This library is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ It is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#include "sysdep.h"
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include "s12z.h"
+
+#include "bfd.h"
+#include "dis-asm.h"
+
+
+#include "disassemble.h"
+
+static int
+read_memory (bfd_vma memaddr, bfd_byte* buffer, int size,
+ struct disassemble_info* info)
+{
+ int status = (*info->read_memory_func) (memaddr, buffer, size, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ return 0;
+}
+
+typedef int (* insn_bytes_f) (bfd_vma memaddr,
+ struct disassemble_info* info);
+
+typedef void (*operands_f) (bfd_vma memaddr, struct disassemble_info* info);
+
+enum OPR_MODE
+ {
+ OPR_IMMe4,
+ OPR_REG,
+ OPR_OFXYS,
+ OPR_XY_PRE_INC,
+ OPR_XY_POST_INC,
+ OPR_XY_PRE_DEC,
+ OPR_XY_POST_DEC,
+ OPR_S_PRE_DEC,
+ OPR_S_POST_INC,
+ OPR_REG_DIRECT,
+ OPR_REG_INDIRECT,
+ OPR_IDX_DIRECT,
+ OPR_IDX_INDIRECT,
+ OPR_EXT1,
+ OPR_IDX2_REG,
+ OPR_IDX3_DIRECT,
+ OPR_IDX3_INDIRECT,
+
+ OPR_EXT18,
+ OPR_IDX3_DIRECT_REG,
+ OPR_EXT3_DIRECT,
+ OPR_EXT3_INDIRECT
+ };
+
+struct opr_pb
+{
+ uint8_t mask;
+ uint8_t value;
+ int n_operands;
+ enum OPR_MODE mode;
+};
+
+static const struct opr_pb opr_pb[] = {
+ {0xF0, 0x70, 1, OPR_IMMe4},
+ {0xF8, 0xB8, 1, OPR_REG},
+ {0xC0, 0x40, 1, OPR_OFXYS},
+ {0xEF, 0xE3, 1, OPR_XY_PRE_INC},
+ {0xEF, 0xE7, 1, OPR_XY_POST_INC},
+ {0xEF, 0xC3, 1, OPR_XY_PRE_DEC},
+ {0xEF, 0xC7, 1, OPR_XY_POST_DEC},
+ {0xFF, 0xFB, 1, OPR_S_PRE_DEC},
+ {0xFF, 0xFF, 1, OPR_S_POST_INC},
+ {0xC8, 0x88, 1, OPR_REG_DIRECT},
+ {0xE8, 0xC8, 1, OPR_REG_INDIRECT},
+
+ {0xCE, 0xC0, 2, OPR_IDX_DIRECT},
+ {0xCE, 0xC4, 2, OPR_IDX_INDIRECT},
+ {0xC0, 0x00, 2, OPR_EXT1},
+
+ {0xC8, 0x80, 3, OPR_IDX2_REG},
+ {0xFA, 0xF8, 3, OPR_EXT18},
+
+ {0xCF, 0xC2, 4, OPR_IDX3_DIRECT},
+ {0xCF, 0xC6, 4, OPR_IDX3_INDIRECT},
+
+ {0xF8, 0xE8, 4, OPR_IDX3_DIRECT_REG},
+ {0xFF, 0xFA, 4, OPR_EXT3_DIRECT},
+ {0xFF, 0xFE, 4, OPR_EXT3_INDIRECT},
+};
+
+
+/* Return the number of bytes in a OPR operand, including the XB postbyte.
+ It does not include any preceeding opcodes. */
+static int
+opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte xb;
+ int status = read_memory (memaddr, &xb, 1, info);
+ if (status < 0)
+ return status;
+
+ size_t i;
+ for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i)
+ {
+ const struct opr_pb *pb = opr_pb + i;
+ if ((xb & pb->mask) == pb->value)
+ {
+ return pb->n_operands;
+ }
+ }
+
+ return 1;
+}
+
+static int
+opr_n_bytes_p1 (bfd_vma memaddr, struct disassemble_info* info)
+{
+ return 1 + opr_n_bytes (memaddr, info);
+}
+
+static int
+opr_n_bytes2 (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int s = opr_n_bytes (memaddr, info);
+ s += opr_n_bytes (memaddr + s, info);
+ return s + 1;
+}
+
+enum BB_MODE
+ {
+ BB_REG_REG_REG,
+ BB_REG_REG_IMM,
+ BB_REG_OPR_REG,
+ BB_OPR_REG_REG,
+ BB_REG_OPR_IMM,
+ BB_OPR_REG_IMM
+ };
+
+struct opr_bb
+{
+ uint8_t mask;
+ uint8_t value;
+ int n_operands;
+ bool opr;
+ enum BB_MODE mode;
+};
+
+static const struct opr_bb bb_modes[] =
+ {
+ {0x60, 0x00, 2, false, BB_REG_REG_REG},
+ {0x60, 0x20, 3, false, BB_REG_REG_IMM},
+ {0x70, 0x40, 2, true, BB_REG_OPR_REG},
+ {0x70, 0x50, 2, true, BB_OPR_REG_REG},
+ {0x70, 0x60, 3, true, BB_REG_OPR_IMM},
+ {0x70, 0x70, 3, true, BB_OPR_REG_IMM}
+ };
+
+static int
+bfextins_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte bb;
+ int status = read_memory (memaddr, &bb, 1, info);
+ if (status < 0)
+ return status;
+
+ size_t i;
+ const struct opr_bb *bbs = 0;
+ for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i)
+ {
+ bbs = bb_modes + i;
+ if ((bb & bbs->mask) == bbs->value)
+ {
+ break;
+ }
+ }
+
+ int n = bbs->n_operands;
+ if (bbs->opr)
+ n += opr_n_bytes (memaddr + n - 1, info);
+
+ return n;
+}
+
+static int
+single (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ struct disassemble_info* info ATTRIBUTE_UNUSED)
+{
+ return 1;
+}
+
+static int
+two (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ struct disassemble_info* info ATTRIBUTE_UNUSED)
+{
+ return 2;
+}
+
+static int
+three (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ struct disassemble_info* info ATTRIBUTE_UNUSED)
+{
+ return 3;
+}
+
+static int
+four (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ struct disassemble_info* info ATTRIBUTE_UNUSED)
+{
+ return 4;
+}
+
+static int
+five (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ struct disassemble_info* info ATTRIBUTE_UNUSED)
+{
+ return 5;
+}
+
+static int
+pcrel_15bit (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr, &byte, 1, info);
+ if (status < 0)
+ return status;
+ return (byte & 0x80) ? 3 : 2;
+}
+
+
+
+
+static void
+operand_separator (struct disassemble_info *info)
+{
+ if ((info->flags & 0x2))
+ {
+ (*info->fprintf_func) (info->stream, ", ");
+ }
+ else
+ {
+ (*info->fprintf_func) (info->stream, " ");
+ }
+
+ info->flags |= 0x2;
+}
+
+
+
+static void
+imm1 (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", byte);
+}
+
+static void
+trap_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ imm1 (memaddr - 1, info);
+}
+
+
+const struct reg registers[S12Z_N_REGISTERS] =
+ {
+ {"d2", 2},
+ {"d3", 2},
+ {"d4", 2},
+ {"d5", 2},
+
+ {"d0", 1},
+ {"d1", 1},
+
+ {"d6", 4},
+ {"d7", 4},
+
+ {"x", 3},
+ {"y", 3},
+ {"s", 3},
+ {"p", 3},
+ {"cch", 1},
+ {"ccl", 1},
+ {"ccw", 2}
+ };
+
+static char *
+xys_from_postbyte (uint8_t postbyte)
+{
+ char *reg = "?";
+ switch ((postbyte & 0x30) >> 4)
+ {
+ case 0:
+ reg = "x";
+ break;
+ case 1:
+ reg = "y";
+ break;
+ case 2:
+ reg = "s";
+ break;
+ default:
+ reg = "?";
+ break;
+ }
+ return reg;
+}
+
+static char *
+xysp_from_postbyte (uint8_t postbyte)
+{
+ char *reg = "?";
+ switch ((postbyte & 0x30) >> 4)
+ {
+ case 0:
+ reg = "x";
+ break;
+ case 1:
+ reg = "y";
+ break;
+ case 2:
+ reg = "s";
+ break;
+ default:
+ reg = "p";
+ break;
+ }
+ return reg;
+}
+
+/* Render the symbol name whose value is ADDR or the adddress itself if there is
+ no symbol. */
+static void
+decode_possible_symbol (bfd_vma addr, struct disassemble_info *info)
+{
+ if (!info->symbol_at_address_func (addr, info))
+ {
+ (*info->fprintf_func) (info->stream, "%" BFD_VMA_FMT "d", addr);
+ }
+ else
+ {
+ asymbol *sym = NULL;
+ int j;
+ for (j = 0; j < info->symtab_size; ++j)
+ {
+ sym = info->symtab[j];
+ if (bfd_asymbol_value (sym) == addr)
+ {
+ break;
+ }
+ }
+ if (j < info->symtab_size)
+ (*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym));
+ }
+}
+
+static void ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info);
+
+static void
+ext24_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t buffer[3];
+ int status = read_memory (memaddr, buffer, 3, info);
+ if (status < 0)
+ return;
+
+ int i;
+ uint32_t addr = 0;
+ for (i = 0; i < 3; ++i)
+ {
+ addr <<= 8;
+ addr |= buffer[i];
+ }
+
+ operand_separator (info);
+ decode_possible_symbol (addr, info);
+}
+
+
+static uint32_t
+decode_signed_value (bfd_vma memaddr, struct disassemble_info* info, short size)
+{
+ assert (size >0);
+ assert (size <= 4);
+ bfd_byte buffer[4];
+ if (0 > read_memory (memaddr, buffer, size, info))
+ {
+ return 0;
+ }
+
+ int i;
+ uint32_t value = 0;
+ for (i = 0; i < size; ++i)
+ {
+ value |= buffer[i] << (8 * (size - i - 1));
+ }
+
+ if (buffer[0] & 0x80)
+ {
+ /* Deal with negative values */
+ value -= 0x1UL << (size * 8);
+ }
+ return value;
+}
+
+
+static void
+opr_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte postbyte;
+ int status = read_memory (memaddr, &postbyte, 1, info);
+ if (status < 0)
+ return;
+
+ enum OPR_MODE mode = -1;
+ size_t i;
+ for (i = 0; i < sizeof (opr_pb) / sizeof (opr_pb[0]); ++i)
+ {
+ const struct opr_pb *pb = opr_pb + i;
+ if ((postbyte & pb->mask) == pb->value)
+ {
+ mode = pb->mode;
+ break;
+ }
+ }
+
+ operand_separator (info);
+ switch (mode)
+ {
+ case OPR_IMMe4:
+ {
+ int n;
+ uint8_t x = (postbyte & 0x0F);
+ if (x == 0)
+ n = -1;
+ else
+ n = x;
+
+ (*info->fprintf_func) (info->stream, "#%d", n);
+ break;
+ }
+ case OPR_REG:
+ {
+ uint8_t x = (postbyte & 0x07);
+ (*info->fprintf_func) (info->stream, "%s", registers[x].name);
+ break;
+ }
+ case OPR_OFXYS:
+ {
+ const char *reg = xys_from_postbyte (postbyte);
+ (*info->fprintf_func) (info->stream, "(%d,%s)", postbyte & 0x0F, reg);
+ break;
+ }
+ case OPR_REG_DIRECT:
+ {
+ (*info->fprintf_func) (info->stream, "(%s,%s)", registers[postbyte & 0x07].name,
+ xys_from_postbyte (postbyte));
+ break;
+ }
+ case OPR_REG_INDIRECT:
+ {
+ (*info->fprintf_func) (info->stream, "[%s,%s]", registers[postbyte & 0x07].name,
+ (postbyte & 0x10) ? "y": "x");
+ break;
+ }
+
+ case OPR_IDX_INDIRECT:
+ {
+ uint8_t x1;
+ read_memory (memaddr + 1, &x1, 1, info);
+ int idx = x1;
+
+ if (postbyte & 0x01)
+ {
+ /* Deal with negative values */
+ idx -= 0x1UL << 8;
+ }
+
+ (*info->fprintf_func) (info->stream, "[%d,%s]", idx,
+ xysp_from_postbyte (postbyte));
+ break;
+ }
+
+ case OPR_IDX3_DIRECT:
+ {
+ uint8_t x[3];
+ read_memory (memaddr + 1, x, 3, info);
+ int idx = x[0] << 16 | x[1] << 8 | x[2];
+
+ if (x[0] & 0x80)
+ {
+ /* Deal with negative values */
+ idx -= 0x1UL << 24;
+ }
+
+ (*info->fprintf_func) (info->stream, "(%d,%s)", idx,
+ xysp_from_postbyte (postbyte));
+ break;
+ }
+
+ case OPR_IDX3_DIRECT_REG:
+ {
+ uint8_t x[3];
+ read_memory (memaddr + 1, x, 3, info);
+ int idx = x[0] << 16 | x[1] << 8 | x[2];
+
+ if (x[0] & 0x80)
+ {
+ /* Deal with negative values */
+ idx -= 0x1UL << 24;
+ }
+
+ (*info->fprintf_func) (info->stream, "(%d,%s)", idx,
+ registers[postbyte & 0x07].name);
+ break;
+ }
+
+ case OPR_IDX3_INDIRECT:
+ {
+ uint8_t x[3];
+ read_memory (memaddr + 1, x, 3, info);
+ int idx = x[0] << 16 | x[1] << 8 | x[2];
+
+ if (x[0] & 0x80)
+ {
+ /* Deal with negative values */
+ idx -= 0x1UL << 24;
+ }
+
+ (*info->fprintf_func) (info->stream, "[%d,%s]", idx,
+ xysp_from_postbyte (postbyte));
+ break;
+ }
+
+ case OPR_IDX_DIRECT:
+ {
+ uint8_t x1;
+ read_memory (memaddr + 1, &x1, 1, info);
+ int idx = x1;
+
+ if (postbyte & 0x01)
+ {
+ /* Deal with negative values */
+ idx -= 0x1UL << 8;
+ }
+
+ (*info->fprintf_func) (info->stream, "(%d,%s)", idx,
+ xysp_from_postbyte (postbyte));
+ break;
+ }
+
+ case OPR_IDX2_REG:
+ {
+ uint8_t x[2];
+ read_memory (memaddr + 1, x, 2, info);
+ uint32_t offset = x[1] | x[0] << 8 ;
+ offset |= (postbyte & 0x30) << 12;
+
+ (*info->fprintf_func) (info->stream, "(%d,%s)", offset,
+ registers[postbyte & 0x07].name);
+ break;
+ }
+
+ case OPR_XY_PRE_INC:
+ {
+ (*info->fprintf_func) (info->stream, "(+%s)",
+ (postbyte & 0x10) ? "y": "x");
+
+ break;
+ }
+ case OPR_XY_POST_INC:
+ {
+ (*info->fprintf_func) (info->stream, "(%s+)",
+ (postbyte & 0x10) ? "y": "x");
+
+ break;
+ }
+ case OPR_XY_PRE_DEC:
+ {
+ (*info->fprintf_func) (info->stream, "(-%s)",
+ (postbyte & 0x10) ? "y": "x");
+
+ break;
+ }
+ case OPR_XY_POST_DEC:
+ {
+ (*info->fprintf_func) (info->stream, "(%s-)",
+ (postbyte & 0x10) ? "y": "x");
+
+ break;
+ }
+ case OPR_S_PRE_DEC:
+ {
+ (*info->fprintf_func) (info->stream, "(-s)");
+ break;
+ }
+ case OPR_S_POST_INC:
+ {
+ (*info->fprintf_func) (info->stream, "(s+)");
+ break;
+ }
+
+ case OPR_EXT18:
+ {
+ const size_t size = 2;
+ bfd_byte buffer[4];
+ status = read_memory (memaddr + 1, buffer, size, info);
+ if (status < 0)
+ return;
+
+ uint32_t ext18 = 0;
+ for (i = 0; i < size; ++i)
+ {
+ ext18 <<= 8;
+ ext18 |= buffer[i];
+ }
+
+ ext18 |= (postbyte & 0x01) << 16;
+ ext18 |= (postbyte & 0x04) << 15;
+
+ decode_possible_symbol (ext18, info);
+ break;
+ }
+
+ case OPR_EXT1:
+ {
+ uint8_t x1 = 0;
+ read_memory (memaddr + 1, &x1, 1, info);
+ int16_t addr;
+ addr = x1;
+ addr |= (postbyte & 0x3f) << 8;
+
+ decode_possible_symbol (addr, info);
+ break;
+ }
+
+ case OPR_EXT3_DIRECT:
+ {
+ const size_t size = 3;
+ bfd_byte buffer[4];
+ status = read_memory (memaddr + 1, buffer, size, info);
+ if (status < 0)
+ return;
+
+ uint32_t ext24 = 0;
+ for (i = 0; i < size; ++i)
+ {
+ ext24 |= buffer[i] << (8 * (size - i - 1));
+ }
+
+ decode_possible_symbol (ext24, info);
+ break;
+ }
+
+ case OPR_EXT3_INDIRECT:
+ {
+ const size_t size = 3;
+ bfd_byte buffer[4];
+ status = read_memory (memaddr + 1, buffer, size, info);
+ if (status < 0)
+ return;
+
+ uint32_t ext24 = 0;
+ for (i = 0; i < size; ++i)
+ {
+ ext24 |= buffer[i] << (8 * (size - i - 1));
+ }
+
+ (*info->fprintf_func) (info->stream, "[%d]", ext24);
+
+ break;
+ }
+
+ default:
+ (*info->fprintf_func) (info->stream, "Unknown OPR mode #0x%x (%d)", postbyte, mode);
+ }
+}
+
+
+static void
+opr_decode2 (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int n = opr_n_bytes (memaddr, info);
+ opr_decode (memaddr, info);
+ opr_decode (memaddr + n, info);
+}
+
+static void
+imm1234 (bfd_vma memaddr, struct disassemble_info* info, int base)
+{
+ bfd_byte opcode;
+ int status = read_memory (memaddr - 1, &opcode, 1, info);
+ if (status < 0)
+ return;
+
+ opcode -= base;
+
+ int size = registers[opcode & 0xF].bytes;
+
+ uint32_t imm = decode_signed_value (memaddr, info, size);
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+}
+
+
+/* Special case of LD and CMP with register S and IMM operand */
+static void
+reg_s_imm (bfd_vma memaddr, struct disassemble_info* info)
+{
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "s");
+
+ uint32_t imm = decode_signed_value (memaddr, info, 3);
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+}
+
+/* Special case of LD, CMP and ST with register S and OPR operand */
+static void
+reg_s_opr (bfd_vma memaddr, struct disassemble_info* info)
+{
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "s");
+
+ opr_decode (memaddr, info);
+}
+
+static void
+imm1234_8base (bfd_vma memaddr, struct disassemble_info* info)
+{
+ imm1234 (memaddr, info, 8);
+}
+
+static void
+imm1234_0base (bfd_vma memaddr, struct disassemble_info* info)
+{
+ imm1234 (memaddr, info, 0);
+}
+
+static void
+tfr (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s, %s",
+ registers[byte >> 4].name,
+ registers[byte & 0xF].name);
+}
+
+
+static void
+reg (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x07].name);
+}
+
+static void
+reg_xy (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", (byte & 0x01) ? "y" : "x");
+}
+
+static void
+lea_reg_xys_opr (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ char *reg = NULL;
+ switch (byte & 0x03)
+ {
+ case 0x00:
+ reg = "x";
+ break;
+ case 0x01:
+ reg = "y";
+ break;
+ case 0x02:
+ reg = "s";
+ break;
+ }
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", reg);
+ opr_decode (memaddr, info);
+}
+
+
+
+static void
+lea_reg_xys (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ char *reg = NULL;
+ switch (byte & 0x03)
+ {
+ case 0x00:
+ reg = "x";
+ break;
+ case 0x01:
+ reg = "y";
+ break;
+ case 0x02:
+ reg = "s";
+ break;
+ }
+
+ status = read_memory (memaddr, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ int8_t v = byte;
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s, (%d,%s)", reg, v, reg);
+}
+
+
+/* PC Relative offsets of size 15 or 7 bits */
+static void
+rel_15_7 (bfd_vma memaddr, struct disassemble_info* info, int offset)
+{
+ bfd_byte upper;
+ int status = read_memory (memaddr, &upper, 1, info);
+ if (status < 0)
+ return;
+
+ bool rel_size = (upper & 0x80);
+
+ int16_t addr = upper;
+ if (rel_size)
+ {
+ /* 15 bits. Get the next byte */
+ bfd_byte lower;
+ status = read_memory (memaddr + 1, &lower, 1, info);
+ if (status < 0)
+ return;
+
+ addr <<= 8;
+ addr |= lower;
+ addr &= 0x7FFF;
+
+ bool negative = (addr & 0x4000);
+ addr &= 0x3FFF;
+ if (negative)
+ addr = addr - 0x4000;
+ }
+ else
+ {
+ /* 7 bits. */
+ bool negative = (addr & 0x40);
+ addr &= 0x3F;
+ if (negative)
+ addr = addr - 0x40;
+ }
+
+ operand_separator (info);
+ if (!info->symbol_at_address_func (addr + memaddr - offset, info))
+ {
+ (*info->fprintf_func) (info->stream, "*%+d", addr);
+ }
+ else
+ {
+ asymbol *sym = NULL;
+ int i;
+ for (i = 0; i < info->symtab_size; ++i)
+ {
+ sym = info->symtab[i];
+ if (bfd_asymbol_value (sym) == addr + memaddr - offset)
+ {
+ break;
+ }
+ }
+ if (i < info->symtab_size)
+ (*info->fprintf_func) (info->stream, "%s", bfd_asymbol_name (sym));
+ }
+}
+
+
+/* PC Relative offsets of size 15 or 7 bits */
+static void
+decode_rel_15_7 (bfd_vma memaddr, struct disassemble_info* info)
+{
+ rel_15_7 (memaddr, info, 1);
+}
+
+struct opcode
+{
+ const char *mnemonic;
+ insn_bytes_f insn_bytes;
+ operands_f operands;
+ operands_f operands2;
+};
+
+static int shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static int mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static int loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static void mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info);
+static void bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info);
+static int bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static int mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static void mul_decode (bfd_vma memaddr, struct disassemble_info* info);
+static int bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info);
+static void bm_decode (bfd_vma memaddr, struct disassemble_info* info);
+
+static void
+cmp_xy (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
+{
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "x, y");
+}
+
+static void
+sub_d6_x_y (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
+{
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "d6, x, y");
+}
+
+static void
+sub_d6_y_x (bfd_vma memaddr ATTRIBUTE_UNUSED, struct disassemble_info* info)
+{
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "d6, y, x");
+}
+
+static const char shift_size_table[] = {
+ 'b', 'w', 'p', 'l'
+};
+
+static const struct opcode page2[] =
+ {
+ [0x00] = {"ld", opr_n_bytes_p1, 0, reg_s_opr},
+ [0x01] = {"st", opr_n_bytes_p1, 0, reg_s_opr},
+ [0x02] = {"cmp", opr_n_bytes_p1, 0, reg_s_opr},
+ [0x03] = {"ld", four, 0, reg_s_imm},
+ [0x04] = {"cmp", four, 0, reg_s_imm},
+ [0x05] = {"stop", single, 0, 0},
+ [0x06] = {"wai", single, 0, 0},
+ [0x07] = {"sys", single, 0, 0},
+ [0x08] = {NULL, bfextins_n_bytes, 0, 0}, /* BFEXT / BFINS */
+ [0x09] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0a] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0b] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0c] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0d] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0e] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x0f] = {NULL, bfextins_n_bytes, 0, 0},
+ [0x10] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x11] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x12] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x13] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x14] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x15] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x16] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x17] = {"minu", opr_n_bytes_p1, reg, opr_decode},
+ [0x18] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x19] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1a] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1b] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1c] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1d] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1e] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x1f] = {"maxu", opr_n_bytes_p1, reg, opr_decode},
+ [0x20] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x21] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x22] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x23] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x24] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x25] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x26] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x27] = {"mins", opr_n_bytes_p1, reg, opr_decode},
+ [0x28] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x29] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2a] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2b] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2c] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2d] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2e] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x2f] = {"maxs", opr_n_bytes_p1, reg, opr_decode},
+ [0x30] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x31] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x32] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x33] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x34] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x35] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x36] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x37] = {"div", mul_n_bytes, mul_decode, 0},
+ [0x38] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x39] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3a] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3b] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3c] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3d] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3e] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x3f] = {"mod", mul_n_bytes, mul_decode, 0},
+ [0x40] = {"abs", single, reg, 0},
+ [0x41] = {"abs", single, reg, 0},
+ [0x42] = {"abs", single, reg, 0},
+ [0x43] = {"abs", single, reg, 0},
+ [0x44] = {"abs", single, reg, 0},
+ [0x45] = {"abs", single, reg, 0},
+ [0x46] = {"abs", single, reg, 0},
+ [0x47] = {"abs", single, reg, 0},
+ [0x48] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x49] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4a] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4b] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4c] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4d] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4e] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x4f] = {"mac", mul_n_bytes, mul_decode, 0},
+ [0x50] = {"adc", three, reg, imm1234_0base},
+ [0x51] = {"adc", three, reg, imm1234_0base},
+ [0x52] = {"adc", three, reg, imm1234_0base},
+ [0x53] = {"adc", three, reg, imm1234_0base},
+ [0x54] = {"adc", two, reg, imm1234_0base},
+ [0x55] = {"adc", two, reg, imm1234_0base},
+ [0x56] = {"adc", five, reg, imm1234_0base},
+ [0x57] = {"adc", five, reg, imm1234_0base},
+ [0x58] = {"bit", three, reg, imm1234_8base},
+ [0x59] = {"bit", three, reg, imm1234_8base},
+ [0x5a] = {"bit", three, reg, imm1234_8base},
+ [0x5b] = {"bit", three, reg, imm1234_8base},
+ [0x5c] = {"bit", two, reg, imm1234_8base},
+ [0x5d] = {"bit", two, reg, imm1234_8base},
+ [0x5e] = {"bit", five, reg, imm1234_8base},
+ [0x5f] = {"bit", five, reg, imm1234_8base},
+ [0x60] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x61] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x62] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x63] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x64] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x65] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x66] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x67] = {"adc", opr_n_bytes_p1, reg, opr_decode},
+ [0x68] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x69] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6a] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6b] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6c] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6d] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6e] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x6f] = {"bit", opr_n_bytes_p1, reg, opr_decode},
+ [0x70] = {"sbc", three, reg, imm1234_0base},
+ [0x71] = {"sbc", three, reg, imm1234_0base},
+ [0x72] = {"sbc", three, reg, imm1234_0base},
+ [0x73] = {"sbc", three, reg, imm1234_0base},
+ [0x74] = {"sbc", two, reg, imm1234_0base},
+ [0x75] = {"sbc", two, reg, imm1234_0base},
+ [0x76] = {"sbc", five, reg, imm1234_0base},
+ [0x77] = {"sbc", five, reg, imm1234_0base},
+ [0x78] = {"eor", three, reg, imm1234_8base},
+ [0x79] = {"eor", three, reg, imm1234_8base},
+ [0x7a] = {"eor", three, reg, imm1234_8base},
+ [0x7b] = {"eor", three, reg, imm1234_8base},
+ [0x7c] = {"eor", two, reg, imm1234_8base},
+ [0x7d] = {"eor", two, reg, imm1234_8base},
+ [0x7e] = {"eor", five, reg, imm1234_8base},
+ [0x7f] = {"eor", five, reg, imm1234_8base},
+ [0x80] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x81] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x82] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x83] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x84] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x85] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x86] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x87] = {"sbc", opr_n_bytes_p1, reg, opr_decode},
+ [0x88] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x89] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8a] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8b] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8c] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8d] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8e] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x8f] = {"eor", opr_n_bytes_p1, reg, opr_decode},
+ [0x90] = {"rti", single, 0, 0},
+ [0x91] = {"clb", two, tfr, 0},
+ [0x92] = {"trap", single, trap_decode, 0},
+ [0x93] = {"trap", single, trap_decode, 0},
+ [0x94] = {"trap", single, trap_decode, 0},
+ [0x95] = {"trap", single, trap_decode, 0},
+ [0x96] = {"trap", single, trap_decode, 0},
+ [0x97] = {"trap", single, trap_decode, 0},
+ [0x98] = {"trap", single, trap_decode, 0},
+ [0x99] = {"trap", single, trap_decode, 0},
+ [0x9a] = {"trap", single, trap_decode, 0},
+ [0x9b] = {"trap", single, trap_decode, 0},
+ [0x9c] = {"trap", single, trap_decode, 0},
+ [0x9d] = {"trap", single, trap_decode, 0},
+ [0x9e] = {"trap", single, trap_decode, 0},
+ [0x9f] = {"trap", single, trap_decode, 0},
+ [0xa0] = {"sat", single, reg, 0},
+ [0xa1] = {"sat", single, reg, 0},
+ [0xa2] = {"sat", single, reg, 0},
+ [0xa3] = {"sat", single, reg, 0},
+ [0xa4] = {"sat", single, reg, 0},
+ [0xa5] = {"sat", single, reg, 0},
+ [0xa6] = {"sat", single, reg, 0},
+ [0xa7] = {"sat", single, reg, 0},
+ [0xa8] = {"trap", single, trap_decode, 0},
+ [0xa9] = {"trap", single, trap_decode, 0},
+ [0xaa] = {"trap", single, trap_decode, 0},
+ [0xab] = {"trap", single, trap_decode, 0},
+ [0xac] = {"trap", single, trap_decode, 0},
+ [0xad] = {"trap", single, trap_decode, 0},
+ [0xae] = {"trap", single, trap_decode, 0},
+ [0xaf] = {"trap", single, trap_decode, 0},
+ [0xb0] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb1] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb2] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb3] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb4] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb5] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb6] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb7] = {"qmul", mul_n_bytes, mul_decode, 0},
+ [0xb8] = {"trap", single, trap_decode, 0},
+ [0xb9] = {"trap", single, trap_decode, 0},
+ [0xba] = {"trap", single, trap_decode, 0},
+ [0xbb] = {"trap", single, trap_decode, 0},
+ [0xbc] = {"trap", single, trap_decode, 0},
+ [0xbd] = {"trap", single, trap_decode, 0},
+ [0xbe] = {"trap", single, trap_decode, 0},
+ [0xbf] = {"trap", single, trap_decode, 0},
+ [0xc0] = {"trap", single, trap_decode, 0},
+ [0xc1] = {"trap", single, trap_decode, 0},
+ [0xc2] = {"trap", single, trap_decode, 0},
+ [0xc3] = {"trap", single, trap_decode, 0},
+ [0xc4] = {"trap", single, trap_decode, 0},
+ [0xc5] = {"trap", single, trap_decode, 0},
+ [0xc6] = {"trap", single, trap_decode, 0},
+ [0xc7] = {"trap", single, trap_decode, 0},
+ [0xc8] = {"trap", single, trap_decode, 0},
+ [0xc9] = {"trap", single, trap_decode, 0},
+ [0xca] = {"trap", single, trap_decode, 0},
+ [0xcb] = {"trap", single, trap_decode, 0},
+ [0xcc] = {"trap", single, trap_decode, 0},
+ [0xcd] = {"trap", single, trap_decode, 0},
+ [0xce] = {"trap", single, trap_decode, 0},
+ [0xcf] = {"trap", single, trap_decode, 0},
+ [0xd0] = {"trap", single, trap_decode, 0},
+ [0xd1] = {"trap", single, trap_decode, 0},
+ [0xd2] = {"trap", single, trap_decode, 0},
+ [0xd3] = {"trap", single, trap_decode, 0},
+ [0xd4] = {"trap", single, trap_decode, 0},
+ [0xd5] = {"trap", single, trap_decode, 0},
+ [0xd6] = {"trap", single, trap_decode, 0},
+ [0xd7] = {"trap", single, trap_decode, 0},
+ [0xd8] = {"trap", single, trap_decode, 0},
+ [0xd9] = {"trap", single, trap_decode, 0},
+ [0xda] = {"trap", single, trap_decode, 0},
+ [0xdb] = {"trap", single, trap_decode, 0},
+ [0xdc] = {"trap", single, trap_decode, 0},
+ [0xdd] = {"trap", single, trap_decode, 0},
+ [0xde] = {"trap", single, trap_decode, 0},
+ [0xdf] = {"trap", single, trap_decode, 0},
+ [0xe0] = {"trap", single, trap_decode, 0},
+ [0xe1] = {"trap", single, trap_decode, 0},
+ [0xe2] = {"trap", single, trap_decode, 0},
+ [0xe3] = {"trap", single, trap_decode, 0},
+ [0xe4] = {"trap", single, trap_decode, 0},
+ [0xe5] = {"trap", single, trap_decode, 0},
+ [0xe6] = {"trap", single, trap_decode, 0},
+ [0xe7] = {"trap", single, trap_decode, 0},
+ [0xe8] = {"trap", single, trap_decode, 0},
+ [0xe9] = {"trap", single, trap_decode, 0},
+ [0xea] = {"trap", single, trap_decode, 0},
+ [0xeb] = {"trap", single, trap_decode, 0},
+ [0xec] = {"trap", single, trap_decode, 0},
+ [0xed] = {"trap", single, trap_decode, 0},
+ [0xee] = {"trap", single, trap_decode, 0},
+ [0xef] = {"trap", single, trap_decode, 0},
+ [0xf0] = {"trap", single, trap_decode, 0},
+ [0xf1] = {"trap", single, trap_decode, 0},
+ [0xf2] = {"trap", single, trap_decode, 0},
+ [0xf3] = {"trap", single, trap_decode, 0},
+ [0xf4] = {"trap", single, trap_decode, 0},
+ [0xf5] = {"trap", single, trap_decode, 0},
+ [0xf6] = {"trap", single, trap_decode, 0},
+ [0xf7] = {"trap", single, trap_decode, 0},
+ [0xf8] = {"trap", single, trap_decode, 0},
+ [0xf9] = {"trap", single, trap_decode, 0},
+ [0xfa] = {"trap", single, trap_decode, 0},
+ [0xfb] = {"trap", single, trap_decode, 0},
+ [0xfc] = {"trap", single, trap_decode, 0},
+ [0xfd] = {"trap", single, trap_decode, 0},
+ [0xfe] = {"trap", single, trap_decode, 0},
+ [0xff] = {"trap", single, trap_decode, 0},
+ };
+
+static const struct opcode page1[] =
+ {
+ [0x00] = {"bgnd", single, 0, 0},
+ [0x01] = {"nop", single, 0, 0},
+ [0x02] = {"brclr", bm_rel_n_bytes, bm_rel_decode, 0},
+ [0x03] = {"brset", bm_rel_n_bytes, bm_rel_decode, 0},
+ [0x04] = {NULL, two, 0, 0}, /* psh/pul */
+ [0x05] = {"rts", single, 0, 0},
+ [0x06] = {"lea", opr_n_bytes_p1, reg, opr_decode},
+ [0x07] = {"lea", opr_n_bytes_p1, reg, opr_decode},
+ [0x08] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
+ [0x09] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
+ [0x0a] = {"lea", opr_n_bytes_p1, lea_reg_xys_opr, 0},
+ [0x0b] = {NULL, loop_prim_n_bytes, 0, 0}, /* Loop primitives TBcc / DBcc */
+ [0x0c] = {"mov.b", mov_imm_opr_n_bytes, mov_imm_opr, 0},
+ [0x0d] = {"mov.w", mov_imm_opr_n_bytes, mov_imm_opr, 0},
+ [0x0e] = {"mov.p", mov_imm_opr_n_bytes, mov_imm_opr, 0},
+ [0x0f] = {"mov.l", mov_imm_opr_n_bytes, mov_imm_opr, 0},
+ [0x10] = {NULL, shift_n_bytes, 0, 0}, /* lsr/lsl/asl/asr/rol/ror */
+ [0x11] = {NULL, shift_n_bytes, 0, 0},
+ [0x12] = {NULL, shift_n_bytes, 0, 0},
+ [0x13] = {NULL, shift_n_bytes, 0, 0},
+ [0x14] = {NULL, shift_n_bytes, 0, 0},
+ [0x15] = {NULL, shift_n_bytes, 0, 0},
+ [0x16] = {NULL, shift_n_bytes, 0, 0},
+ [0x17] = {NULL, shift_n_bytes, 0, 0},
+ [0x18] = {"lea", two, lea_reg_xys, NULL},
+ [0x19] = {"lea", two, lea_reg_xys, NULL},
+ [0x1a] = {"lea", two, lea_reg_xys, NULL},
+ /* 0x1b PG2 */
+ [0x1c] = {"mov.b", opr_n_bytes2, 0, opr_decode2},
+ [0x1d] = {"mov.w", opr_n_bytes2, 0, opr_decode2},
+ [0x1e] = {"mov.p", opr_n_bytes2, 0, opr_decode2},
+ [0x1f] = {"mov.l", opr_n_bytes2, 0, opr_decode2},
+ [0x20] = {"bra", pcrel_15bit, decode_rel_15_7, 0},
+ [0x21] = {"bsr", pcrel_15bit, decode_rel_15_7, 0},
+ [0x22] = {"bhi", pcrel_15bit, decode_rel_15_7, 0},
+ [0x23] = {"bls", pcrel_15bit, decode_rel_15_7, 0},
+ [0x24] = {"bcc", pcrel_15bit, decode_rel_15_7, 0},
+ [0x25] = {"bcs", pcrel_15bit, decode_rel_15_7, 0},
+ [0x26] = {"bne", pcrel_15bit, decode_rel_15_7, 0},
+ [0x27] = {"beq", pcrel_15bit, decode_rel_15_7, 0},
+ [0x28] = {"bvc", pcrel_15bit, decode_rel_15_7, 0},
+ [0x29] = {"bvs", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2a] = {"bpl", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2b] = {"bmi", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2c] = {"bge", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2d] = {"blt", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2e] = {"bgt", pcrel_15bit, decode_rel_15_7, 0},
+ [0x2f] = {"ble", pcrel_15bit, decode_rel_15_7, 0},
+ [0x30] = {"inc", single, reg, 0},
+ [0x31] = {"inc", single, reg, 0},
+ [0x32] = {"inc", single, reg, 0},
+ [0x33] = {"inc", single, reg, 0},
+ [0x34] = {"inc", single, reg, 0},
+ [0x35] = {"inc", single, reg, 0},
+ [0x36] = {"inc", single, reg, 0},
+ [0x37] = {"inc", single, reg, 0},
+ [0x38] = {"clr", single, reg, 0},
+ [0x39] = {"clr", single, reg, 0},
+ [0x3a] = {"clr", single, reg, 0},
+ [0x3b] = {"clr", single, reg, 0},
+ [0x3c] = {"clr", single, reg, 0},
+ [0x3d] = {"clr", single, reg, 0},
+ [0x3e] = {"clr", single, reg, 0},
+ [0x3f] = {"clr", single, reg, 0},
+ [0x40] = {"dec", single, reg, 0},
+ [0x41] = {"dec", single, reg, 0},
+ [0x42] = {"dec", single, reg, 0},
+ [0x43] = {"dec", single, reg, 0},
+ [0x44] = {"dec", single, reg, 0},
+ [0x45] = {"dec", single, reg, 0},
+ [0x46] = {"dec", single, reg, 0},
+ [0x47] = {"dec", single, reg, 0},
+ [0x48] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x49] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4a] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4b] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4c] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4d] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4e] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x4f] = {"mul", mul_n_bytes, mul_decode, 0},
+ [0x50] = {"add", three, reg, imm1234_0base},
+ [0x51] = {"add", three, reg, imm1234_0base},
+ [0x52] = {"add", three, reg, imm1234_0base},
+ [0x53] = {"add", three, reg, imm1234_0base},
+ [0x54] = {"add", two, reg, imm1234_0base},
+ [0x55] = {"add", two, reg, imm1234_0base},
+ [0x56] = {"add", five, reg, imm1234_0base},
+ [0x57] = {"add", five, reg, imm1234_0base},
+ [0x58] = {"and", three, reg, imm1234_8base},
+ [0x59] = {"and", three, reg, imm1234_8base},
+ [0x5a] = {"and", three, reg, imm1234_8base},
+ [0x5b] = {"and", three, reg, imm1234_8base},
+ [0x5c] = {"and", two, reg, imm1234_8base},
+ [0x5d] = {"and", two, reg, imm1234_8base},
+ [0x5e] = {"and", five, reg, imm1234_8base},
+ [0x5f] = {"and", five, reg, imm1234_8base},
+ [0x60] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x61] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x62] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x63] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x64] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x65] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x66] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x67] = {"add", opr_n_bytes_p1, reg, opr_decode},
+ [0x68] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x69] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6a] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6b] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6c] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6d] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6e] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x6f] = {"and", opr_n_bytes_p1, reg, opr_decode},
+ [0x70] = {"sub", three, reg, imm1234_0base},
+ [0x71] = {"sub", three, reg, imm1234_0base},
+ [0x72] = {"sub", three, reg, imm1234_0base},
+ [0x73] = {"sub", three, reg, imm1234_0base},
+ [0x74] = {"sub", two, reg, imm1234_0base},
+ [0x75] = {"sub", two, reg, imm1234_0base},
+ [0x76] = {"sub", five, reg, imm1234_0base},
+ [0x77] = {"sub", five, reg, imm1234_0base},
+ [0x78] = {"or", three, reg, imm1234_8base},
+ [0x79] = {"or", three, reg, imm1234_8base},
+ [0x7a] = {"or", three, reg, imm1234_8base},
+ [0x7b] = {"or", three, reg, imm1234_8base},
+ [0x7c] = {"or", two, reg, imm1234_8base},
+ [0x7d] = {"or", two, reg, imm1234_8base},
+ [0x7e] = {"or", five, reg, imm1234_8base},
+ [0x7f] = {"or", five, reg, imm1234_8base},
+ [0x80] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x81] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x82] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x83] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x84] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x85] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x86] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x87] = {"sub", opr_n_bytes_p1, reg, opr_decode},
+ [0x88] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x89] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8a] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8b] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8c] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8d] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8e] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x8f] = {"or", opr_n_bytes_p1, reg, opr_decode},
+ [0x90] = {"ld", three, reg, imm1234_0base},
+ [0x91] = {"ld", three, reg, imm1234_0base},
+ [0x92] = {"ld", three, reg, imm1234_0base},
+ [0x93] = {"ld", three, reg, imm1234_0base},
+ [0x94] = {"ld", two, reg, imm1234_0base},
+ [0x95] = {"ld", two, reg, imm1234_0base},
+ [0x96] = {"ld", five, reg, imm1234_0base},
+ [0x97] = {"ld", five, reg, imm1234_0base},
+ [0x98] = {"ld", four, reg_xy, imm1234_0base},
+ [0x99] = {"ld", four, reg_xy, imm1234_0base},
+ [0x9a] = {"clr", single, reg_xy, 0},
+ [0x9b] = {"clr", single, reg_xy, 0},
+ [0x9c] = {"inc.b", opr_n_bytes_p1, 0, opr_decode},
+ [0x9d] = {"inc.w", opr_n_bytes_p1, 0, opr_decode},
+ [0x9e] = {"tfr", two, tfr, NULL},
+ [0x9f] = {"inc.l", opr_n_bytes_p1, 0, opr_decode},
+ [0xa0] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa1] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa2] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa3] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa4] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa5] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa6] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa7] = {"ld", opr_n_bytes_p1, reg, opr_decode},
+ [0xa8] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xa9] = {"ld", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xaa] = {"jmp", opr_n_bytes_p1, opr_decode, 0},
+ [0xab] = {"jsr", opr_n_bytes_p1, opr_decode, 0},
+ [0xac] = {"dec.b", opr_n_bytes_p1, 0, opr_decode},
+ [0xad] = {"dec.w", opr_n_bytes_p1, 0, opr_decode},
+ [0xae] = {NULL, two, 0, 0}, /* EXG / SEX */
+ [0xaf] = {"dec.l", opr_n_bytes_p1, 0, opr_decode},
+ [0xb0] = {"ld", four, reg, ext24_decode},
+ [0xb1] = {"ld", four, reg, ext24_decode},
+ [0xb2] = {"ld", four, reg, ext24_decode},
+ [0xb3] = {"ld", four, reg, ext24_decode},
+ [0xb4] = {"ld", four, reg, ext24_decode},
+ [0xb5] = {"ld", four, reg, ext24_decode},
+ [0xb6] = {"ld", four, reg, ext24_decode},
+ [0xb7] = {"ld", four, reg, ext24_decode},
+ [0xb8] = {"ld", four, reg_xy, ext24_decode},
+ [0xb9] = {"ld", four, reg_xy, ext24_decode},
+ [0xba] = {"jmp", four, ext24_decode, 0},
+ [0xbb] = {"jsr", four, ext24_decode, 0},
+ [0xbc] = {"clr.b", opr_n_bytes_p1, 0, opr_decode},
+ [0xbd] = {"clr.w", opr_n_bytes_p1, 0, opr_decode},
+ [0xbe] = {"clr.p", opr_n_bytes_p1, 0, opr_decode},
+ [0xbf] = {"clr.l", opr_n_bytes_p1, 0, opr_decode},
+ [0xc0] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc1] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc2] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc3] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc4] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc5] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc6] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc7] = {"st", opr_n_bytes_p1, reg, opr_decode},
+ [0xc8] = {"st", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xc9] = {"st", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xca] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xcb] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xcc] = {"com.b", opr_n_bytes_p1, NULL, opr_decode},
+ [0xcd] = {"com.w", opr_n_bytes_p1, NULL, opr_decode},
+ [0xce] = {"andcc", two, imm1, 0},
+ [0xcf] = {"com.l", opr_n_bytes_p1, NULL, opr_decode},
+ [0xd0] = {"st", four, reg, ext24_decode},
+ [0xd1] = {"st", four, reg, ext24_decode},
+ [0xd2] = {"st", four, reg, ext24_decode},
+ [0xd3] = {"st", four, reg, ext24_decode},
+ [0xd4] = {"st", four, reg, ext24_decode},
+ [0xd5] = {"st", four, reg, ext24_decode},
+ [0xd6] = {"st", four, reg, ext24_decode},
+ [0xd7] = {"st", four, reg, ext24_decode},
+ [0xd8] = {"st", four, reg_xy, ext24_decode},
+ [0xd9] = {"st", four, reg_xy, ext24_decode},
+ [0xda] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xdb] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xdc] = {"neg.b", opr_n_bytes_p1, NULL, opr_decode},
+ [0xdd] = {"neg.w", opr_n_bytes_p1, NULL, opr_decode},
+ [0xde] = {"orcc", two, imm1, 0},
+ [0xdf] = {"neg.l", opr_n_bytes_p1, NULL, opr_decode},
+ [0xe0] = {"cmp", three, reg, imm1234_0base},
+ [0xe1] = {"cmp", three, reg, imm1234_0base},
+ [0xe2] = {"cmp", three, reg, imm1234_0base},
+ [0xe3] = {"cmp", three, reg, imm1234_0base},
+ [0xe4] = {"cmp", two, reg, imm1234_0base},
+ [0xe5] = {"cmp", two, reg, imm1234_0base},
+ [0xe6] = {"cmp", five, reg, imm1234_0base},
+ [0xe7] = {"cmp", five, reg, imm1234_0base},
+ [0xe8] = {"cmp", four, reg_xy, imm1234_0base},
+ [0xe9] = {"cmp", four, reg_xy, imm1234_0base},
+ [0xea] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xeb] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xec] = {"bclr", bm_n_bytes, bm_decode, 0},
+ [0xed] = {"bset", bm_n_bytes, bm_decode, 0},
+ [0xee] = {"btgl", bm_n_bytes, bm_decode, 0},
+ [0xef] = {"!!invalid!!", NULL, NULL, NULL}, /* SPARE */
+ [0xf0] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf1] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf2] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf3] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf4] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf5] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf6] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf7] = {"cmp", opr_n_bytes_p1, reg, opr_decode},
+ [0xf8] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xf9] = {"cmp", opr_n_bytes_p1, reg_xy, opr_decode},
+ [0xfa] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xfb] = {"ld", three, reg_xy, ld_18bit_decode},
+ [0xfc] = {"cmp", single, cmp_xy, 0},
+ [0xfd] = {"sub", single, sub_d6_x_y, 0},
+ [0xfe] = {"sub", single, sub_d6_y_x, 0},
+ [0xff] = {"swi", single, 0, 0}
+ };
+
+
+static const char *oprregs1[] =
+ {
+ "d3", "d2", "d1", "d0", "ccl", "cch"
+ };
+
+static const char *oprregs2[] =
+ {
+ "y", "x", "d7", "d6", "d5", "d4"
+ };
+
+
+
+
+enum MUL_MODE
+ {
+ MUL_REG_REG,
+ MUL_REG_OPR,
+ MUL_REG_IMM,
+ MUL_OPR_OPR
+ };
+
+struct mb
+{
+ uint8_t mask;
+ uint8_t value;
+ enum MUL_MODE mode;
+};
+
+static const struct mb mul_table[] = {
+ {0x40, 0x00, MUL_REG_REG},
+
+ {0x47, 0x40, MUL_REG_OPR},
+ {0x47, 0x41, MUL_REG_OPR},
+ {0x47, 0x43, MUL_REG_OPR},
+
+ {0x47, 0x44, MUL_REG_IMM},
+ {0x47, 0x45, MUL_REG_IMM},
+ {0x47, 0x47, MUL_REG_IMM},
+
+ {0x43, 0x42, MUL_OPR_OPR},
+};
+
+static void
+mul_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t mb;
+ int status = read_memory (memaddr, &mb, 1, info);
+ if (status < 0)
+ return;
+
+
+ uint8_t byte;
+ status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return;
+
+ (*info->fprintf_func) (info->stream, "%c", (mb & 0x80) ? 's' : 'u');
+
+ enum MUL_MODE mode = -1;
+ size_t i;
+ for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i)
+ {
+ const struct mb *mm = mul_table + i;
+ if ((mb & mm->mask) == mm->value)
+ {
+ mode = mm->mode;
+ break;
+ }
+ }
+
+ switch (mode)
+ {
+ case MUL_REG_REG:
+ break;
+ case MUL_OPR_OPR:
+ {
+ int size1 = (mb & 0x30) >> 4;
+ int size2 = (mb & 0x0c) >> 2;
+ (*info->fprintf_func) (info->stream, ".%c%c",
+ shift_size_table [size1],
+ shift_size_table [size2]);
+ }
+ break;
+ default:
+ {
+ int size = (mb & 0x3);
+ (*info->fprintf_func) (info->stream, ".%c", shift_size_table [size]);
+ }
+ break;
+ }
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name);
+
+ switch (mode)
+ {
+ case MUL_REG_REG:
+ case MUL_REG_IMM:
+ case MUL_REG_OPR:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[(mb & 0x38) >> 3].name);
+ break;
+ default:
+ break;
+ }
+
+ switch (mode)
+ {
+ case MUL_REG_IMM:
+ operand_separator (info);
+ int size = (mb & 0x3);
+ uint32_t imm = decode_signed_value (memaddr + 1, info, size + 1);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ break;
+ case MUL_REG_REG:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[mb & 0x07].name);
+ break;
+ case MUL_REG_OPR:
+ opr_decode (memaddr + 1, info);
+ break;
+ case MUL_OPR_OPR:
+ {
+ int first = opr_n_bytes (memaddr + 1, info);
+ opr_decode (memaddr + 1, info);
+ opr_decode (memaddr + first + 1, info);
+ break;
+ }
+ }
+}
+
+
+static int
+mul_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int nx = 2;
+ uint8_t mb;
+ int status = read_memory (memaddr, &mb, 1, info);
+ if (status < 0)
+ return 0;
+
+ enum MUL_MODE mode = -1;
+ size_t i;
+ for (i = 0; i < sizeof (mul_table) / sizeof (mul_table[0]); ++i)
+ {
+ const struct mb *mm = mul_table + i;
+ if ((mb & mm->mask) == mm->value)
+ {
+ mode = mm->mode;
+ break;
+ }
+ }
+
+ int size = (mb & 0x3) + 1;
+
+ switch (mode)
+ {
+ case MUL_REG_IMM:
+ nx += size;
+ break;
+ case MUL_REG_REG:
+ break;
+ case MUL_REG_OPR:
+ nx += opr_n_bytes (memaddr + 1, info);
+ break;
+ case MUL_OPR_OPR:
+ {
+ int first = opr_n_bytes (memaddr + nx - 1, info);
+ nx += first;
+ int second = opr_n_bytes (memaddr + nx - 1, info);
+ nx += second;
+ }
+ break;
+ }
+
+ return nx;
+}
+
+
+enum BM_MODE {
+ BM_REG_IMM,
+ BM_RESERVED0,
+ BM_OPR_B,
+ BM_OPR_W,
+ BM_OPR_L,
+ BM_OPR_REG,
+ BM_RESERVED1
+};
+
+struct bm
+{
+ uint8_t mask;
+ uint8_t value;
+ enum BM_MODE mode;
+};
+
+static const struct bm bm_table[] = {
+ { 0xC6, 0x04, BM_REG_IMM},
+ { 0x84, 0x00, BM_REG_IMM},
+ { 0x06, 0x06, BM_REG_IMM},
+ { 0xC6, 0x44, BM_RESERVED0},
+ // 00
+ { 0x8F, 0x80, BM_OPR_B},
+ { 0x8E, 0x82, BM_OPR_W},
+ { 0x8C, 0x88, BM_OPR_L},
+
+ { 0x83, 0x81, BM_OPR_REG},
+ { 0x87, 0x84, BM_RESERVED1},
+};
+
+static void
+bm_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t bm;
+ int status = read_memory (memaddr, &bm, 1, info);
+ if (status < 0)
+ return;
+
+ size_t i;
+ enum BM_MODE mode = -1;
+ for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
+ {
+ const struct bm *bme = bm_table + i;
+ if ((bm & bme->mask) == bme->value)
+ {
+ mode = bme->mode;
+ break;
+ }
+ }
+
+ switch (mode)
+ {
+ case BM_REG_IMM:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name);
+ break;
+ case BM_OPR_B:
+ (*info->fprintf_func) (info->stream, ".%c", 'b');
+ opr_decode (memaddr + 1, info);
+ break;
+ case BM_OPR_W:
+ (*info->fprintf_func) (info->stream, ".%c", 'w');
+ opr_decode (memaddr + 1, info);
+ break;
+ case BM_OPR_L:
+ (*info->fprintf_func) (info->stream, ".%c", 'l');
+ opr_decode (memaddr + 1, info);
+ break;
+ case BM_OPR_REG:
+ {
+ uint8_t xb;
+ read_memory (memaddr + 1, &xb, 1, info);
+ /* Don't emit a size suffix for register operands */
+ if ((xb & 0xF8) != 0xB8)
+ (*info->fprintf_func) (info->stream, ".%c", shift_size_table[(bm & 0x0c) >> 2]);
+ opr_decode (memaddr + 1, info);
+ }
+ break;
+ case BM_RESERVED0:
+ case BM_RESERVED1:
+ assert (0);
+ break;
+ }
+
+ uint8_t imm = 0;
+ operand_separator (info);
+ switch (mode)
+ {
+ case BM_REG_IMM:
+ {
+ imm = (bm & 0xF8) >> 3;
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ }
+ break;
+ case BM_OPR_L:
+ imm |= (bm & 0x03) << 3;
+ /* fallthrough */
+ case BM_OPR_W:
+ imm |= (bm & 0x01) << 3;
+ /* fallthrough */
+ case BM_OPR_B:
+ imm |= (bm & 0x70) >> 4;
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ break;
+ case BM_OPR_REG:
+ (*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name);
+ break;
+ case BM_RESERVED0:
+ case BM_RESERVED1:
+ assert (0);
+ break;
+ }
+}
+
+
+static void
+bm_rel_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t bm;
+ int status = read_memory (memaddr, &bm, 1, info);
+ if (status < 0)
+ return;
+
+ size_t i;
+ enum BM_MODE mode = -1;
+ for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
+ {
+ const struct bm *bme = bm_table + i;
+ if ((bm & bme->mask) == bme->value)
+ {
+ mode = bme->mode;
+ break;
+ }
+ }
+
+ switch (mode)
+ {
+ case BM_REG_IMM:
+ break;
+ case BM_OPR_B:
+ (*info->fprintf_func) (info->stream, ".%c", 'b');
+ break;
+ case BM_OPR_W:
+ (*info->fprintf_func) (info->stream, ".%c", 'w');
+ break;
+ case BM_OPR_L:
+ (*info->fprintf_func) (info->stream, ".%c", 'l');
+ break;
+ case BM_OPR_REG:
+ {
+ uint8_t xb;
+ read_memory (memaddr + 1, &xb, 1, info);
+ /* Don't emit a size suffix for register operands */
+ if ((xb & 0xF8) != 0xB8)
+ (*info->fprintf_func) (info->stream, ".%c",
+ shift_size_table[(bm & 0x0C) >> 2]);
+ }
+ break;
+ case BM_RESERVED0:
+ case BM_RESERVED1:
+ assert (0);
+ break;
+ }
+
+ int n = 1;
+ switch (mode)
+ {
+ case BM_REG_IMM:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[bm & 0x07].name);
+ break;
+ case BM_OPR_B:
+ case BM_OPR_W:
+ case BM_OPR_L:
+ opr_decode (memaddr + 1, info);
+ n = 1 + opr_n_bytes (memaddr + 1, info);
+ break;
+ case BM_OPR_REG:
+ opr_decode (memaddr + 1, info);
+ break;
+ case BM_RESERVED0:
+ case BM_RESERVED1:
+ assert (0);
+ break;
+ }
+
+
+ int imm = 0;
+ operand_separator (info);
+ switch (mode)
+ {
+ case BM_OPR_L:
+ imm |= (bm & 0x02) << 3;
+ /* fall through */
+ case BM_OPR_W:
+ imm |= (bm & 0x01) << 3;
+ /* fall through */
+ case BM_OPR_B:
+ imm |= (bm & 0x70) >> 4;
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ break;
+ case BM_REG_IMM:
+ imm = (bm & 0xF8) >> 3;
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ break;
+ case BM_RESERVED0:
+ case BM_RESERVED1:
+ assert (0);
+ break;
+ case BM_OPR_REG:
+ (*info->fprintf_func) (info->stream, "%s", registers[(bm & 0x70) >> 4].name);
+ n += opr_n_bytes (memaddr + 1, info);
+ break;
+ }
+
+ rel_15_7 (memaddr + n, info, n + 1);
+}
+
+static int
+bm_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t bm;
+ int status = read_memory (memaddr, &bm, 1, info);
+ if (status < 0)
+ return status;
+
+ size_t i;
+ enum BM_MODE mode = -1;
+ for (i = 0; i < sizeof (bm_table) / sizeof (bm_table[0]); ++i)
+ {
+ const struct bm *bme = bm_table + i;
+ if ((bm & bme->mask) == bme->value)
+ {
+ mode = bme->mode;
+ break;
+ }
+ }
+
+ int n = 2;
+ switch (mode)
+ {
+ case BM_REG_IMM:
+ break;
+
+ case BM_OPR_B:
+ case BM_OPR_W:
+ case BM_OPR_L:
+ n += opr_n_bytes (memaddr + 1, info);
+ break;
+ case BM_OPR_REG:
+ n += opr_n_bytes (memaddr + 1, info);
+ break;
+ default:
+ break;
+ }
+
+ return n;
+}
+
+static int
+bm_rel_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int n = 1 + bm_n_bytes (memaddr, info);
+
+ bfd_byte rb;
+ int status = read_memory (memaddr + n - 2, &rb, 1, info);
+ if (status != 0)
+ return status;
+
+ if (rb & 0x80)
+ n++;
+
+ return n;
+}
+
+
+
+
+
+/* shift direction */
+enum SB_DIR
+ {
+ SB_LEFT,
+ SB_RIGHT
+ };
+
+enum SB_TYPE
+ {
+ SB_ARITHMETIC,
+ SB_LOGICAL
+ };
+
+
+enum SB_MODE
+ {
+ SB_REG_REG_N_EFF,
+ SB_REG_REG_N,
+ SB_REG_OPR_EFF,
+ SB_ROT,
+ SB_REG_OPR_OPR,
+ SB_OPR_N
+ };
+
+struct sb
+{
+ uint8_t mask;
+ uint8_t value;
+ enum SB_MODE mode;
+};
+
+static const struct sb sb_table[] = {
+ {0x30, 0x00, SB_REG_REG_N_EFF},
+ {0x30, 0x10, SB_REG_REG_N},
+ {0x34, 0x20, SB_REG_OPR_EFF},
+ {0x34, 0x24, SB_ROT},
+ {0x34, 0x30, SB_REG_OPR_OPR},
+ {0x34, 0x34, SB_OPR_N},
+};
+
+static int
+shift_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte sb;
+ int status = read_memory (memaddr++, &sb, 1, info);
+ if (status != 0)
+ return status;
+
+ size_t i;
+ enum SB_MODE mode = -1;
+ for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i)
+ {
+ const struct sb *sbe = sb_table + i;
+ if ((sb & sbe->mask) == sbe->value)
+ mode = sbe->mode;
+ }
+
+ switch (mode)
+ {
+ case SB_REG_REG_N_EFF:
+ return 2;
+ break;
+ case SB_REG_OPR_EFF:
+ case SB_ROT:
+ return 2 + opr_n_bytes (memaddr, info);
+ break;
+ case SB_REG_OPR_OPR:
+ {
+ int opr1 = opr_n_bytes (memaddr, info);
+ int opr2 = 0;
+ if ((sb & 0x30) != 0x20)
+ opr2 = opr_n_bytes (memaddr + opr1, info);
+ return 2 + opr1 + opr2;
+ }
+ break;
+ default:
+ return 3;
+ }
+
+ /* not reached */
+ return -1;
+}
+
+
+static int
+mov_imm_opr_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return status;
+
+ int size = byte - 0x0c + 1;
+
+ return size + opr_n_bytes (memaddr + size, info) + 1;
+}
+
+static void
+mov_imm_opr (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr - 1, &byte, 1, info);
+ if (status < 0)
+ return ;
+
+ int size = byte - 0x0c + 1;
+ uint32_t imm = decode_signed_value (memaddr, info, size);
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ opr_decode (memaddr + size, info);
+}
+
+
+
+static void
+ld_18bit_decode (bfd_vma memaddr, struct disassemble_info* info)
+{
+ size_t size = 3;
+ bfd_byte buffer[3];
+ int status = read_memory (memaddr, buffer + 1, 2, info);
+ if (status < 0)
+ return ;
+
+
+ status = read_memory (memaddr - 1, buffer, 1, info);
+ if (status < 0)
+ return ;
+
+ buffer[0] = (buffer[0] & 0x30) >> 4;
+
+ size_t i;
+ uint32_t imm = 0;
+ for (i = 0; i < size; ++i)
+ {
+ imm |= buffer[i] << (8 * (size - i - 1));
+ }
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+}
+
+
+
+/* Loop Primitives */
+
+enum LP_MODE {
+ LP_REG,
+ LP_XY,
+ LP_OPR
+};
+
+struct lp
+{
+ uint8_t mask;
+ uint8_t value;
+ enum LP_MODE mode;
+};
+
+static const struct lp lp_mode[] = {
+ {0x08, 0x00, LP_REG},
+ {0x0C, 0x08, LP_XY},
+ {0x0C, 0x0C, LP_OPR},
+};
+
+
+static const char *lb_condition[] =
+ {
+ "ne", "eq", "pl", "mi", "gt", "le",
+ "??", "??"
+ };
+
+static int
+loop_prim_n_bytes (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int mx = 0;
+ uint8_t lb;
+ read_memory (memaddr + mx++, &lb, 1, info);
+
+ enum LP_MODE mode = -1;
+ size_t i;
+ for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i)
+ {
+ const struct lp *pb = lp_mode + i;
+ if ((lb & pb->mask) == pb->value)
+ {
+ mode = pb->mode;
+ break;
+ }
+ }
+
+ if (mode == LP_OPR)
+ {
+ mx += opr_n_bytes (memaddr + mx, info) ;
+ }
+
+ uint8_t rb;
+ read_memory (memaddr + mx++, &rb, 1, info);
+ if (rb & 0x80)
+ mx++;
+
+ return mx + 1;
+}
+
+
+
+
+static int
+print_insn_exg_sex (bfd_vma memaddr, struct disassemble_info* info)
+{
+ uint8_t eb;
+ int status = read_memory (memaddr, &eb, 1, info);
+ if (status < 0)
+ return -1;
+
+ const struct reg *first = &registers[(eb & 0xf0) >> 4];
+ const struct reg *second = &registers[(eb & 0xf)];
+
+ if (first->bytes < second->bytes)
+ (*info->fprintf_func) (info->stream, "sex");
+ else
+ (*info->fprintf_func) (info->stream, "exg");
+
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", first->name);
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", second->name);
+ return 0;
+}
+
+
+
+static int
+print_insn_loop_primitive (bfd_vma memaddr, struct disassemble_info* info)
+{
+ int offs = 1;
+ uint8_t lb;
+ int status = read_memory (memaddr, &lb, 1, info);
+
+ char mnemonic[7];
+ int x = 0;
+ mnemonic[x++] = (lb & 0x80) ? 'd' : 't';
+ mnemonic[x++] = 'b';
+ stpcpy (mnemonic + x, lb_condition [(lb & 0x70) >> 4]);
+ x += 2;
+
+ const char *reg = NULL;
+ enum LP_MODE mode = -1;
+ size_t i;
+ for (i = 0; i < sizeof (lp_mode) / sizeof (lp_mode[0]); ++i)
+ {
+ const struct lp *pb = lp_mode + i;
+ if ((lb & pb->mask) == pb->value)
+ {
+ mode = pb->mode;
+ break;
+ }
+ }
+
+ switch (mode)
+ {
+ case LP_REG:
+ reg = registers [lb & 0x07].name;
+ break;
+ case LP_XY:
+ reg = (lb & 0x1) ? "y" : "x";
+ break;
+ case LP_OPR:
+ mnemonic[x++] = '.';
+ mnemonic[x++] = shift_size_table [lb & 0x03];
+ offs += opr_n_bytes (memaddr + 1, info);
+ break;
+ }
+
+ mnemonic[x++] = '\0';
+
+ (*info->fprintf_func) (info->stream, "%s", mnemonic);
+
+ if (mode == LP_OPR)
+ opr_decode (memaddr + 1, info);
+ else
+ {
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", reg);
+ }
+
+ rel_15_7 (memaddr + offs, info, offs + 1);
+
+ return status;
+}
+
+
+static int
+print_insn_shift (bfd_vma memaddr, struct disassemble_info* info, uint8_t byte)
+{
+ size_t i;
+ uint8_t sb;
+ int status = read_memory (memaddr, &sb, 1, info);
+ if (status < 0)
+ return status;
+
+ enum SB_DIR dir = (sb & 0x40) ? SB_LEFT : SB_RIGHT;
+ enum SB_TYPE type = (sb & 0x80) ? SB_ARITHMETIC : SB_LOGICAL;
+ enum SB_MODE mode = -1;
+ for (i = 0; i < sizeof (sb_table) / sizeof (sb_table[0]); ++i)
+ {
+ const struct sb *sbe = sb_table + i;
+ if ((sb & sbe->mask) == sbe->value)
+ mode = sbe->mode;
+ }
+
+ char mnemonic[6];
+ int x = 0;
+ if (mode == SB_ROT)
+ {
+ mnemonic[x++] = 'r';
+ mnemonic[x++] = 'o';
+ }
+ else
+ {
+ mnemonic[x++] = (type == SB_LOGICAL) ? 'l' : 'a';
+ mnemonic[x++] = 's';
+ }
+
+ mnemonic[x++] = (dir == SB_LEFT) ? 'l' : 'r';
+
+ switch (mode)
+ {
+ case SB_REG_OPR_EFF:
+ case SB_ROT:
+ case SB_REG_OPR_OPR:
+ mnemonic[x++] = '.';
+ mnemonic[x++] = shift_size_table[sb & 0x03];
+ break;
+ case SB_OPR_N:
+ {
+ uint8_t xb;
+ read_memory (memaddr + 1, &xb, 1, info);
+ /* The size suffix is not printed if the OPR operand refers
+ directly to a register, because the size is implied by the
+ size of that register. */
+ if ((xb & 0xF8) != 0xB8)
+ {
+ mnemonic[x++] = '.';
+ mnemonic[x++] = shift_size_table[sb & 0x03];
+ }
+ }
+ break;
+ default:
+ break;
+ };
+
+ mnemonic[x++] = '\0';
+
+ (*info->fprintf_func) (info->stream, "%s", mnemonic);
+
+ /* Destination register */
+ switch (mode)
+ {
+ case SB_REG_REG_N_EFF:
+ case SB_REG_REG_N:
+ case SB_REG_OPR_EFF:
+ case SB_REG_OPR_OPR:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[byte & 0x7].name);
+ break;
+
+ case SB_ROT:
+ opr_decode (memaddr + 1, info);
+ break;
+
+ default:
+ break;
+ }
+
+ /* Source register */
+ switch (mode)
+ {
+ case SB_REG_REG_N_EFF:
+ case SB_REG_REG_N:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", registers[sb & 0x7].name);
+ break;
+
+ case SB_REG_OPR_OPR:
+ opr_decode (memaddr + 1, info);
+ break;
+
+ default:
+ break;
+ }
+
+ /* 3rd arg */
+ switch (mode)
+ {
+ case SB_REG_OPR_EFF:
+ case SB_OPR_N:
+ opr_decode (memaddr + 1, info);
+ break;
+
+ case SB_REG_REG_N:
+ if (sb & 0x08)
+ {
+ operand_separator (info);
+ if (byte & 0x10)
+ {
+ uint8_t xb;
+ read_memory (memaddr + 1, &xb, 1, info);
+ int shift = ((sb & 0x08) >> 3) | ((xb & 0x0f) << 1);
+ (*info->fprintf_func) (info->stream, "#%d", shift);
+ }
+ else
+ {
+ (*info->fprintf_func) (info->stream, "%s:%d", __FILE__, __LINE__);
+ }
+ }
+ else
+ {
+ opr_decode (memaddr + 1, info);
+ }
+ break;
+ case SB_REG_OPR_OPR:
+ {
+ uint8_t xb;
+ int n = opr_n_bytes (memaddr + 1, info);
+ read_memory (memaddr + 1 + n, &xb, 1, info);
+
+ if ((xb & 0xF0) == 0x70)
+ {
+ int imm = xb & 0x0F;
+ imm <<= 1;
+ imm |= (sb & 0x08) >> 3;
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d", imm);
+ }
+ else
+ {
+ opr_decode (memaddr + 1 + n, info);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ switch (mode)
+ {
+ case SB_REG_REG_N_EFF:
+ case SB_REG_OPR_EFF:
+ case SB_OPR_N:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "#%d",
+ (sb & 0x08) ? 2 : 1);
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+int
+print_insn_s12z (bfd_vma memaddr, struct disassemble_info* info)
+{
+ bfd_byte byte;
+ int status = read_memory (memaddr++, &byte, 1, info);
+ if (status != 0)
+ return status;
+
+ const struct opcode *opc2 = NULL;
+ const struct opcode *opc = page1 + byte;
+ if (opc->mnemonic)
+ {
+ (*info->fprintf_func) (info->stream, "%s", opc->mnemonic);
+ }
+ else
+ {
+ /* The special cases ... */
+ switch (byte)
+ {
+ case PAGE2_PREBYTE:
+ {
+ bfd_byte byte2;
+ read_memory (memaddr++, &byte2, 1, info);
+ opc2 = page2 + byte2;
+ if (opc2->mnemonic)
+ {
+ (*info->fprintf_func) (info->stream, "%s", opc2->mnemonic);
+
+ if (opc2->operands)
+ {
+ opc2->operands (memaddr, info);
+ }
+
+ if (opc2->operands2)
+ {
+ opc2->operands2 (memaddr, info);
+ }
+ }
+ else if (byte2 >= 0x08 && byte2 <= 0x1F)
+ {
+ bfd_byte bb;
+ read_memory (memaddr, &bb, 1, info);
+ if (bb & 0x80)
+ (*info->fprintf_func) (info->stream, "bfins");
+ else
+ (*info->fprintf_func) (info->stream, "bfext");
+
+ enum BB_MODE mode = -1;
+ size_t i;
+ const struct opr_bb *bbs = 0;
+ for (i = 0; i < sizeof (bb_modes) / sizeof (bb_modes[0]); ++i)
+ {
+ bbs = bb_modes + i;
+ if ((bb & bbs->mask) == bbs->value)
+ {
+ mode = bbs->mode;
+ break;
+ }
+ }
+
+ switch (mode)
+ {
+ case BB_REG_OPR_REG:
+ case BB_REG_OPR_IMM:
+ case BB_OPR_REG_REG:
+ case BB_OPR_REG_IMM:
+ {
+ int size = (bb >> 2) & 0x03;
+ (*info->fprintf_func) (info->stream, ".%c",
+ shift_size_table [size]);
+ }
+ break;
+ default:
+ break;
+ }
+
+ int reg1 = byte2 & 0x07;
+ /* First operand */
+ switch (mode)
+ {
+ case BB_REG_REG_REG:
+ case BB_REG_REG_IMM:
+ case BB_REG_OPR_REG:
+ case BB_REG_OPR_IMM:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s",
+ registers[reg1].name);
+ break;
+ case BB_OPR_REG_REG:
+ opr_decode (memaddr + 1, info);
+ break;
+ case BB_OPR_REG_IMM:
+ opr_decode (memaddr + 2, info);
+ break;
+ }
+
+ /* Second operand */
+ switch (mode)
+ {
+ case BB_REG_REG_REG:
+ case BB_REG_REG_IMM:
+ {
+ int reg_src = (bb >> 2) & 0x07;
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s",
+ registers[reg_src].name);
+ }
+ break;
+ case BB_OPR_REG_REG:
+ case BB_OPR_REG_IMM:
+ {
+ int reg_src = (byte2 & 0x07);
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s",
+ registers[reg_src].name);
+ }
+ break;
+ case BB_REG_OPR_REG:
+ opr_decode (memaddr + 1, info);
+ break;
+ case BB_REG_OPR_IMM:
+ opr_decode (memaddr + 2, info);
+ break;
+ }
+
+ /* Third operand */
+ operand_separator (info);
+ switch (mode)
+ {
+ case BB_REG_REG_REG:
+ case BB_OPR_REG_REG:
+ case BB_REG_OPR_REG:
+ {
+ int reg_parm = bb & 0x03;
+ (*info->fprintf_func) (info->stream, "%s",
+ registers[reg_parm].name);
+ }
+ break;
+ case BB_REG_REG_IMM:
+ case BB_OPR_REG_IMM:
+ case BB_REG_OPR_IMM:
+ {
+ bfd_byte i1;
+ read_memory (memaddr + 1, &i1, 1, info);
+ int offset = i1 & 0x1f;
+ int width = bb & 0x03;
+ width <<= 3;
+ width |= i1 >> 5;
+ (*info->fprintf_func) (info->stream, "#%d:%d", width, offset);
+ }
+ break;
+ }
+ }
+ }
+ break;
+ case 0xae: /* EXG / SEX */
+ status = print_insn_exg_sex (memaddr, info);
+ break;
+ case 0x0b: /* Loop Primitives TBcc and DBcc */
+ status = print_insn_loop_primitive (memaddr, info);
+ break;
+ case 0x10: /* shift */
+ case 0x11: /* shift */
+ case 0x12: /* shift */
+ case 0x13: /* shift */
+ case 0x14: /* shift */
+ case 0x15: /* shift */
+ case 0x16: /* shift */
+ case 0x17: /* shift */
+ status = print_insn_shift (memaddr, info, byte);
+ break;
+ case 0x04: /* psh / pul */
+ {
+ read_memory (memaddr, &byte, 1, info);
+ (*info->fprintf_func) (info->stream, (byte & 0x80) ? "pul" : "psh");
+ int bit;
+ if (byte & 0x40)
+ {
+ if ((byte & 0x3F) == 0)
+ {
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", "ALL16b");
+ }
+ else
+ for (bit = 5; bit >= 0; --bit)
+ {
+ if (byte & (0x1 << bit))
+ {
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", oprregs2[bit]);
+ }
+ }
+ }
+ else
+ {
+ if ((byte & 0x3F) == 0)
+ {
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", "ALL");
+ }
+ else
+ for (bit = 5; bit >= 0; --bit)
+ {
+ if (byte & (0x1 << bit))
+ {
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "%s", oprregs1[bit]);
+ }
+ }
+ }
+ }
+ break;
+ default:
+ operand_separator (info);
+ (*info->fprintf_func) (info->stream, "???");
+ break;
+ }
+ }
+
+ if (opc2 == NULL)
+ {
+ if (opc->operands)
+ {
+ opc->operands (memaddr, info);
+ }
+
+ if (opc->operands2)
+ {
+ opc->operands2 (memaddr, info);
+ }
+ }
+
+ int n = 0;
+
+ /* Opcodes in page2 have an additional byte */
+ if (opc2)
+ n++;
+
+ if (opc2 && opc2->insn_bytes == 0)
+ return n;
+
+ if (!opc2 && opc->insn_bytes == 0)
+ return n;
+
+ if (opc2)
+ n += opc2->insn_bytes (memaddr, info);
+ else
+ n += opc->insn_bytes (memaddr, info);
+
+ return n;
+}