X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=opcodes%2Fm68hc11-dis.c;h=71a1a520a5352813e0de9397bce9c01aa37d645d;hb=ddb56fe60054be3463ba30dde8d6c41d641dee01;hp=2ef241cf7d04e60136b1361d63f9795e7a038c8d;hpb=d0352a18a504a4e7b761f6b3264cf11347d8d056;p=deliverable%2Fbinutils-gdb.git diff --git a/opcodes/m68hc11-dis.c b/opcodes/m68hc11-dis.c index 2ef241cf7d..71a1a520a5 100644 --- a/opcodes/m68hc11-dis.c +++ b/opcodes/m68hc11-dis.c @@ -1,47 +1,54 @@ /* m68hc11-dis.c -- Motorola 68HC11 & 68HC12 disassembly - Copyright (C) 1999, 2000 Free Software Foundation, Inc. - Written by Stephane Carrez (stcarrez@worldnet.fr) + Copyright (C) 1999-2020 Free Software Foundation, Inc. + Written by Stephane Carrez (stcarrez@nerim.fr) + XGATE and S12X added by James Murray (jsm@jsm-net.demon.co.uk) -This program 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 2 of the License, or -(at your option) any later version. + This file is part of the GNU opcodes library. -This program 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. + 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. -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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 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 -#include "ansidecl.h" #include "opcode/m68hc11.h" -#include "dis-asm.h" +#include "disassemble.h" + +#define PC_REGNUM 3 -static const char *const reg_name[] = { +static const char *const reg_name[] = +{ "X", "Y", "SP", "PC" }; -static const char *const reg_src_table[] = { +static const char *const reg_src_table[] = +{ "A", "B", "CCR", "TMP3", "D", "X", "Y", "SP" }; -static const char *const reg_dst_table[] = { +static const char *const reg_dst_table[] = +{ "A", "B", "CCR", "TMP2", "D", "X", "Y", "SP" }; #define OP_PAGE_MASK (M6811_OP_PAGE2|M6811_OP_PAGE3|M6811_OP_PAGE4) + static int -read_memory (memaddr, buffer, size, info) - bfd_vma memaddr; - bfd_byte *buffer; - int size; - struct disassemble_info *info; +read_memory (bfd_vma memaddr, bfd_byte* buffer, int size, + struct disassemble_info* info) { int status; @@ -60,17 +67,19 @@ read_memory (memaddr, buffer, size, info) /* Read the 68HC12 indexed operand byte and print the corresponding mode. Returns the number of bytes read or -1 if failure. */ static int -print_indexed_operand (memaddr, info, mov_insn) - bfd_vma memaddr; - struct disassemble_info *info; - int mov_insn; +print_indexed_operand (bfd_vma memaddr, struct disassemble_info* info, + int* indirect, int mov_insn, int pc_offset, + bfd_vma endaddr, int arch) { bfd_byte buffer[4]; int reg; int status; - short sval; + bfd_vma val; int pos = 1; + if (indirect) + *indirect = 0; + status = read_memory (memaddr, &buffer[0], 1, info); if (status != 0) { @@ -81,11 +90,22 @@ print_indexed_operand (memaddr, info, mov_insn) if ((buffer[0] & 0x20) == 0) { reg = (buffer[0] >> 6) & 3; - sval = (buffer[0] & 0x1f); - if (sval & 0x10) - sval |= 0xfff0; - (*info->fprintf_func) (info->stream, "%d,%s", - (int) sval, reg_name[reg]); + val = ((buffer[0] & 0x1f) ^ 0x10) - 0x10; + /* 68HC12 requires an adjustment for movb/movw pc relative modes. */ + if (reg == PC_REGNUM && info->mach == bfd_mach_m6812 && mov_insn) + val += pc_offset; + (*info->fprintf_func) (info->stream, "0x%x,%s", + (unsigned) val & 0xffff, reg_name[reg]); + + if (reg == PC_REGNUM) + { + (* info->fprintf_func) (info->stream, " {"); + /* Avoid duplicate 0x from core binutils. */ + if (info->symtab_size > 0) + (*info->fprintf_func) (info->stream, "0x"); + (* info->print_address_func) (endaddr + val, info); + (* info->fprintf_func) (info->stream, "}"); + } } /* Auto pre/post increment/decrement. */ @@ -94,28 +114,27 @@ print_indexed_operand (memaddr, info, mov_insn) const char *mode; reg = (buffer[0] >> 6) & 3; - sval = (buffer[0] & 0x0f); - if (sval & 0x8) + val = buffer[0] & 7; + if (buffer[0] & 8) { - sval |= 0xfff0; - sval = -sval; + val = 8 - val; mode = "-"; } else { - sval = sval + 1; + val = val + 1; mode = "+"; } (*info->fprintf_func) (info->stream, "%d,%s%s%s", - (int) sval, - (buffer[0] & 0x10 ? "" : mode), - reg_name[reg], (buffer[0] & 0x10 ? mode : "")); + (unsigned) val, + buffer[0] & 0x10 ? "" : mode, + reg_name[reg], buffer[0] & 0x10 ? mode : ""); } /* [n,r] 16-bits offset indexed indirect. */ else if ((buffer[0] & 0x07) == 3) { - if (mov_insn) + if ((mov_insn) && (!(arch & cpu9s12x))) { (*info->fprintf_func) (info->stream, "", buffer[0] & 0x0ff); @@ -124,45 +143,52 @@ print_indexed_operand (memaddr, info, mov_insn) reg = (buffer[0] >> 3) & 0x03; status = read_memory (memaddr + pos, &buffer[0], 2, info); if (status != 0) - { - return status; - } + return status; pos += 2; - sval = ((buffer[0] << 8) | (buffer[1] & 0x0FF)); - (*info->fprintf_func) (info->stream, "[%u,%s]", - sval & 0x0ffff, reg_name[reg]); + val = (buffer[0] << 8) | buffer[1]; + (*info->fprintf_func) (info->stream, "[0x%x,%s]", + (unsigned) val & 0xffff, reg_name[reg]); + if (indirect) + *indirect = 1; } + + /* n,r with 9 and 16 bit signed constant. */ else if ((buffer[0] & 0x4) == 0) { - if (mov_insn) + if ((mov_insn) && (!(arch & cpu9s12x))) { (*info->fprintf_func) (info->stream, "", buffer[0] & 0x0ff); return 0; } + reg = (buffer[0] >> 3) & 0x03; status = read_memory (memaddr + pos, &buffer[1], (buffer[0] & 0x2 ? 2 : 1), info); if (status != 0) - { - return status; - } + return status; + if (buffer[0] & 2) { - sval = ((buffer[1] << 8) | (buffer[2] & 0x0FF)); - sval &= 0x0FFFF; + val = (((buffer[1] << 8) | buffer[2]) ^ 0x8000) - 0x8000; pos += 2; + endaddr += 2; } else { - sval = buffer[1] & 0x00ff; - if (buffer[0] & 0x01) - sval |= 0xff00; + val = buffer[1] - ((buffer[0] & 1) << 8); pos++; + endaddr++; + } + (*info->fprintf_func) (info->stream, "0x%x,%s", + (unsigned) val & 0xffff, reg_name[reg]); + if (reg == PC_REGNUM) + { + (* info->fprintf_func) (info->stream, " {0x"); + (* info->print_address_func) (endaddr + val, info); + (* info->fprintf_func) (info->stream, "}"); } - (*info->fprintf_func) (info->stream, "%d,%s", - (int) sval, reg_name[reg]); } else { @@ -181,6 +207,8 @@ print_indexed_operand (memaddr, info, mov_insn) case 3: default: (*info->fprintf_func) (info->stream, "[D,%s]", reg_name[reg]); + if (indirect) + *indirect = 1; break; } } @@ -191,25 +219,114 @@ print_indexed_operand (memaddr, info, mov_insn) /* Disassemble one instruction at address 'memaddr'. Returns the number of bytes used by that instruction. */ static int -print_insn (memaddr, info, arch) - bfd_vma memaddr; - struct disassemble_info *info; - int arch; +print_insn (bfd_vma memaddr, struct disassemble_info* info, int arch) { int status; bfd_byte buffer[4]; - unsigned char code; + unsigned int code; long format, pos, i; - short sval; + bfd_vma val; const struct m68hc11_opcode *opcode; + if (arch & cpuxgate) + { + /* Get two bytes as all XGATE instructions are 16bit. */ + status = read_memory (memaddr, buffer, 2, info); + if (status != 0) + return status; + + format = 0; + code = (buffer[0] << 8) + buffer[1]; + + /* Scan the opcode table until we find the opcode + with the corresponding page. */ + opcode = m68hc11_opcodes; + for (i = 0; i < m68hc11_num_opcodes; i++, opcode++) + { + if ((opcode->opcode != (code & opcode->xg_mask)) || (opcode->arch != cpuxgate)) + continue; + /* We have found the opcode. Extract the operand and print it. */ + (*info->fprintf_func) (info->stream, "%s", opcode->name); + format = opcode->format; + if (format & (M68XG_OP_NONE)) + { + /* Nothing to print. */ + } + else if (format & M68XG_OP_IMM3) + (*info->fprintf_func) (info->stream, " #0x%x", (code >> 8) & 0x7); + else if (format & M68XG_OP_R_R) + (*info->fprintf_func) (info->stream, " R%x, R%x", + (code >> 8) & 0x7, (code >> 5) & 0x7); + else if (format & M68XG_OP_R_R_R) + (*info->fprintf_func) (info->stream, " R%x, R%x, R%x", + (code >> 8) & 0x7, (code >> 5) & 0x7, (code >> 2) & 0x7); + else if (format & M68XG_OP_RD_RB_RI) + (*info->fprintf_func) (info->stream, " R%x, (R%x, R%x)", + (code >> 8) & 0x7, (code >> 5) & 0x7, (code >> 2) & 0x7); + else if (format & M68XG_OP_RD_RB_RIp) + (*info->fprintf_func) (info->stream, " R%x, (R%x, R%x+)", + (code >> 8) & 0x7, (code >> 5) & 0x7, (code >> 2) & 0x7); + else if (format & M68XG_OP_RD_RB_mRI) + (*info->fprintf_func) (info->stream, " R%x, (R%x, -R%x)", + (code >> 8) & 0x7, (code >> 5) & 0x7, (code >> 2) & 0x7); + else if (format & M68XG_OP_R_R_OFFS5) + (*info->fprintf_func) (info->stream, " R%x, (R%x, #0x%x)", + (code >> 8) & 0x7, (code >> 5) & 0x7, code & 0x1f); + else if (format & M68XG_OP_R_IMM8) + (*info->fprintf_func) (info->stream, " R%x, #0x%02x", + (code >> 8) & 0x7, code & 0xff); + else if (format & M68XG_OP_R_IMM4) + (*info->fprintf_func) (info->stream, " R%x, #0x%x", + (code >> 8) & 0x7, (code & 0xf0) >> 4); + else if (format & M68XG_OP_REL9) + { + (*info->fprintf_func) (info->stream, " 0x"); + val = buffer[1] - ((buffer[0] & 1) << 8); + (*info->print_address_func) (memaddr + (val << 1) + 2, info); + } + else if (format & M68XG_OP_REL10) + { + (*info->fprintf_func) (info->stream, " 0x"); + val = (buffer[0] << 8) | buffer[1]; + val = ((val & 0x3ff) ^ 0x200) - 0x200; + (*info->print_address_func) (memaddr + (val << 1) + 2, info); + } + else if ((code & 0x00ff) == 0x00f8) + (*info->fprintf_func) (info->stream, " R%x, CCR", (code >> 8) & 0x7); + else if ((code & 0x00ff) == 0x00f9) + (*info->fprintf_func) (info->stream, " CCR, R%x", (code >> 8) & 0x7); + else if ((code & 0x00ff) == 0x0) + (*info->fprintf_func) (info->stream, " R%x, PC", (code >> 8) & 0x7); + else if (format & M68XG_OP_R) + { + /* Special cases for TFR. */ + if ((code & 0xf8ff) == 0x00f8) + (*info->fprintf_func) (info->stream, " R%x, CCR", (code >> 8) & 0x7); + else if ((code & 0xf8ff) == 0x00f9) + (*info->fprintf_func) (info->stream, " CCR, R%x", (code >> 8) & 0x7); + else if ((code & 0xf8ff) == 0x00fa) + (*info->fprintf_func) (info->stream, " R%x, PC", (code >> 8) & 0x7); + else + (*info->fprintf_func) (info->stream, " R%x", (code >> 8) & 0x7); + } + else + /* Opcode not recognized. */ + (*info->fprintf_func) (info->stream, "Not yet handled TEST .byte\t0x%04x", code); + return 2; + } + + /* Opcode not recognized. */ + (*info->fprintf_func) (info->stream, ".byte\t0x%04x", code); + return 2; /* Everything is two bytes. */ + } + + /* HC11 and HC12. */ + /* Get first byte. Only one at a time because we don't know the size of the insn. */ status = read_memory (memaddr, buffer, 1, info); if (status != 0) - { - return status; - } + return status; format = 0; code = buffer[0]; @@ -237,13 +354,11 @@ print_insn (memaddr, info, arch) { status = read_memory (memaddr + pos, &buffer[1], 1, info); if (status != 0) - { - return status; - } + return status; + code = buffer[1]; } - /* Look first for a 68HC12 alias. All of them are 2-bytes long and in page 1. There is no operand to print. We read the second byte only when we have a possible match. */ @@ -283,6 +398,8 @@ print_insn (memaddr, info, arch) for (i = 0; i < m68hc11_num_opcodes; i++, opcode++) { int offset; + int pc_src_offset; + int pc_dst_offset = 0; if ((opcode->arch & arch) == 0) continue; @@ -340,6 +457,10 @@ print_insn (memaddr, info, arch) && (((buffer[0] & 0x07) >= 3 && (buffer[0] & 7) <= 7)) && ((buffer[0] & 0x0f0) <= 0x20)) break; + if ((opcode[j].format & M6812_OP_SEX_MARKER) + && (arch & cpu9s12x) + && ((buffer[0] == 0x4d) || (buffer[0] == 0x4e))) + break; if (opcode[j].format & M6812_OP_TFR_MARKER && !(buffer[0] & 0x80)) break; @@ -358,62 +479,138 @@ print_insn (memaddr, info, arch) (*info->fprintf_func) (info->stream, "\t"); } - /* The movb and movw must be handled in a special way... */ - offset = 0; - if (format & (M6812_OP_IDX_P2 | M6812_OP_IND16_P2)) + /* The movb and movw must be handled in a special way... + The source constant 'ii' is not always at the same place. + This is the same for the destination for the post-indexed byte. + The 'offset' is used to do the appropriate correction. + + offset offset + for constant for destination + movb 18 OB ii hh ll 0 0 + 18 08 xb ii 1 -1 + 18 08 xb ff ii 2 1 9 bit + 18 08 xb ee ff ii 3 1 16 bit + 18 0C hh ll hh ll 0 0 + 18 09 xb hh ll 1 -1 + 18 0D xb hh ll 0 0 + 18 0A xb xb 0 0 + + movw 18 03 jj kk hh ll 0 0 + 18 00 xb jj kk 1 -1 + 18 04 hh ll hh ll 0 0 + 18 01 xb hh ll 1 -1 + 18 05 xb hh ll 0 0 + 18 02 xb xb 0 0 + + After the source operand is read, the position 'pos' is incremented + this explains the negative offset for destination. + + movb/movw above are the only instructions with this matching + format. */ + offset = ((format & M6812_OP_IDX_P2) + && (format & (M6811_OP_IMM8 | M6811_OP_IMM16 | + M6811_OP_IND16))); + + if (offset) { - if ((format & M6812_OP_IDX_P2) - && (format & (M6811_OP_IMM8 | M6811_OP_IMM16 | M6811_OP_IND16))) - offset = 1; + /* Check xb to see position of data. */ + status = read_memory (memaddr + pos, &buffer[0], 1, info); + if (status != 0) + { + return status; + } + + if (((buffer[0] & 0xe0) == 0xe0) && ((buffer[0] & 0x04) == 0)) + { + /* 9 or 16 bit. */ + if ((buffer[0] & 0x02) == 0) + { + /* 9 bit. */ + offset = 2; + } + else + { + /* 16 bit. */ + offset = 3; + } + } } /* Operand with one more byte: - immediate, offset, - direct-low address. */ + direct-low address. */ if (format & (M6811_OP_IMM8 | M6811_OP_IX | M6811_OP_IY | M6811_OP_DIRECT)) { status = read_memory (memaddr + pos + offset, &buffer[0], 1, info); if (status != 0) + return status; + + /* This movb/movw is special (see above). */ + if (offset < 2) { - return status; + offset = -offset; + pc_dst_offset = 2; + } + else + { + offset = -1; + pc_dst_offset = 5; } - pos++; - offset = -1; + if (format & M6811_OP_IMM8) { - (*info->fprintf_func) (info->stream, "#%d", (int) buffer[0]); + (*info->fprintf_func) (info->stream, "#0x%x", (int) buffer[0]); format &= ~M6811_OP_IMM8; + /* Set PC destination offset. */ + pc_dst_offset = 1; } else if (format & M6811_OP_IX) { /* Offsets are in range 0..255, print them unsigned. */ - (*info->fprintf_func) (info->stream, "%u,x", buffer[0] & 0x0FF); + (*info->fprintf_func) (info->stream, "0x%x,x", buffer[0] & 0x0FF); format &= ~M6811_OP_IX; } else if (format & M6811_OP_IY) { - (*info->fprintf_func) (info->stream, "%u,y", buffer[0] & 0x0FF); + (*info->fprintf_func) (info->stream, "0x%x,y", buffer[0] & 0x0FF); format &= ~M6811_OP_IY; } else if (format & M6811_OP_DIRECT) { (*info->fprintf_func) (info->stream, "*"); + if (info->symtab_size > 0) /* Avoid duplicate 0x. */ + (*info->fprintf_func) (info->stream, "0x"); (*info->print_address_func) (buffer[0] & 0x0FF, info); format &= ~M6811_OP_DIRECT; } } +#define M6812_DST_MOVE (M6812_OP_IND16_P2 | M6812_OP_IDX_P2) #define M6812_INDEXED_FLAGS (M6812_OP_IDX|M6812_OP_IDX_1|M6812_OP_IDX_2) /* Analyze the 68HC12 indexed byte. */ if (format & M6812_INDEXED_FLAGS) { - status = print_indexed_operand (memaddr + pos, info, 0); + int indirect; + bfd_vma endaddr; + + endaddr = memaddr + pos + 1; + if (format & M6811_OP_IND16) + endaddr += 2; + pc_src_offset = -1; + pc_dst_offset = 1; + status = print_indexed_operand (memaddr + pos, info, &indirect, + (format & M6812_DST_MOVE), + pc_src_offset, endaddr, arch); if (status < 0) - { - return status; - } + return status; + pos += status; + + /* The indirect addressing mode of the call instruction does + not need the page code. */ + if ((format & M6812_OP_PAGE) && indirect) + format &= ~M6812_OP_PAGE; } /* 68HC12 dbcc/ibcc/tbcc operands. */ @@ -421,26 +618,22 @@ print_insn (memaddr, info, arch) { status = read_memory (memaddr + pos, &buffer[0], 2, info); if (status != 0) - { - return status; - } + return status; + (*info->fprintf_func) (info->stream, "%s,", reg_src_table[buffer[0] & 0x07]); - sval = buffer[1] & 0x0ff; - if (buffer[0] & 0x10) - sval |= 0xff00; + val = buffer[1] - ((buffer[0] & 0x10) << 4); pos += 2; - (*info->print_address_func) (memaddr + pos + sval, info); + (*info->fprintf_func) (info->stream, "0x"); + (*info->print_address_func) (memaddr + pos + val, info); format &= ~(M6812_OP_REG | M6811_OP_JUMP_REL); } else if (format & (M6812_OP_REG | M6812_OP_REG_2)) { status = read_memory (memaddr + pos, &buffer[0], 1, info); if (status != 0) - { - return status; - } + return status; pos++; (*info->fprintf_func) (info->stream, "%s,%s", @@ -448,87 +641,86 @@ print_insn (memaddr, info, arch) reg_dst_table[(buffer[0] & 7)]); } - /* M6811_OP_BITMASK and M6811_OP_JUMP_REL must be treated separately - and in that order. The brset/brclr insn have a bitmask and then - a relative branch offset. */ - if (format & M6811_OP_BITMASK) - { - status = read_memory (memaddr + pos, &buffer[0], 1, info); - if (status != 0) - { - return status; - } - pos++; - (*info->fprintf_func) (info->stream, " #$%02x%s", - buffer[0] & 0x0FF, - (format & M6811_OP_JUMP_REL ? " " : "")); - format &= ~M6811_OP_BITMASK; - } - if (format & M6811_OP_JUMP_REL) - { - int val; - - status = read_memory (memaddr + pos, &buffer[0], 1, info); - if (status != 0) - { - return status; - } - - pos++; - val = (buffer[0] & 0x80) ? buffer[0] | 0xFFFFFF00 : buffer[0]; - (*info->print_address_func) (memaddr + pos + val, info); - format &= ~M6811_OP_JUMP_REL; - } - else if (format & M6812_OP_JUMP_REL16) - { - int val; - - status = read_memory (memaddr + pos, &buffer[0], 2, info); - if (status != 0) - { - return status; - } - - pos += 2; - val = ((buffer[0] << 8) | (buffer[1] & 0x0FF)); - if (val & 0x8000) - val |= 0xffff0000; - - (*info->print_address_func) (memaddr + pos + val, info); - format &= ~M6812_OP_JUMP_REL16; - } if (format & (M6811_OP_IMM16 | M6811_OP_IND16)) { - int val; + bfd_vma addr; + unsigned page = 0; status = read_memory (memaddr + pos + offset, &buffer[0], 2, info); if (status != 0) - { - return status; - } + return status; + if (format & M6812_OP_IDX_P2) offset = -2; else offset = 0; pos += 2; - val = ((buffer[0] << 8) | (buffer[1] & 0x0FF)); - val &= 0x0FFFF; + addr = val = (buffer[0] << 8) | buffer[1]; + pc_dst_offset = 2; + if (format & M6812_OP_PAGE) + { + status = read_memory (memaddr + pos + offset, buffer, 1, info); + if (status != 0) + return status; + + page = buffer[0]; + if (addr >= M68HC12_BANK_BASE && addr < 0x0c000) + addr = (val - M68HC12_BANK_BASE + (page << M68HC12_BANK_SHIFT) + + M68HC12_BANK_VIRT); + } + else if ((arch & cpu6812) + && addr >= M68HC12_BANK_BASE && addr < 0x0c000) + { + unsigned cur_page; + bfd_vma vaddr; + + if (memaddr >= M68HC12_BANK_VIRT) + cur_page = ((memaddr - M68HC12_BANK_VIRT) + >> M68HC12_BANK_SHIFT); + else + cur_page = 0; + + vaddr = (addr - M68HC12_BANK_BASE + + (cur_page << M68HC12_BANK_SHIFT)) + M68HC12_BANK_VIRT; + if (!info->symbol_at_address_func (addr, info) + && info->symbol_at_address_func (vaddr, info)) + addr = vaddr; + } if (format & M6811_OP_IMM16) { format &= ~M6811_OP_IMM16; (*info->fprintf_func) (info->stream, "#"); } else - format &= ~M6811_OP_IND16; + { + format &= ~M6811_OP_IND16; + } - (*info->print_address_func) (val, info); + /* Avoid duplicate 0x from core binutils. */ + if (info->symtab_size > 0) + (*info->fprintf_func) (info->stream, "0x"); + + (*info->print_address_func) (addr, info); + if (format & M6812_OP_PAGE) + { + (* info->fprintf_func) (info->stream, " {"); + /* Avoid duplicate 0x from core binutils. */ + if (info->symtab_size > 0) + (*info->fprintf_func) (info->stream, "0x"); + (* info->print_address_func) (val, info); + (* info->fprintf_func) (info->stream, ", 0x%x}", page); + format &= ~M6812_OP_PAGE; + pos += 1; + } } if (format & M6812_OP_IDX_P2) { (*info->fprintf_func) (info->stream, ", "); - status = print_indexed_operand (memaddr + pos + offset, info, 1); + status = print_indexed_operand (memaddr + pos + offset, info, + 0, 1, pc_dst_offset, + memaddr + pos + offset + 1, arch); if (status < 0) return status; pos += status; @@ -536,43 +728,92 @@ print_insn (memaddr, info, arch) if (format & M6812_OP_IND16_P2) { - int val; - (*info->fprintf_func) (info->stream, ", "); status = read_memory (memaddr + pos + offset, &buffer[0], 2, info); if (status != 0) - { - return status; - } + return status; + pos += 2; - val = ((buffer[0] << 8) | (buffer[1] & 0x0FF)); - val &= 0x0FFFF; + val = (buffer[0] << 8) | buffer[1]; + /* Avoid duplicate 0x from core binutils. */ + if (info->symtab_size > 0) + (*info->fprintf_func) (info->stream, "0x"); (*info->print_address_func) (val, info); } -#ifdef DEBUG - /* Consistency check. 'format' must be 0, so that we have handled - all formats; and the computed size of the insn must match the - opcode table content. */ - if (format & ~(M6811_OP_PAGE4 | M6811_OP_PAGE3 | M6811_OP_PAGE2)) + /* M6811_OP_BITMASK and M6811_OP_JUMP_REL must be treated separately + and in that order. The brset/brclr insn have a bitmask and then + a relative branch offset. */ + if (format & M6811_OP_BITMASK) { - (*info->fprintf_func) (info->stream, "; Error, format: %x", format); + status = read_memory (memaddr + pos, &buffer[0], 1, info); + if (status != 0) + return status; + + pos++; + (*info->fprintf_func) (info->stream, ", #0x%02x%s", + buffer[0] & 0x0FF, + (format & M6811_OP_JUMP_REL ? ", " : "")); + format &= ~M6811_OP_BITMASK; } - if (pos != opcode->size) + if (format & M6811_OP_JUMP_REL) + { + status = read_memory (memaddr + pos, &buffer[0], 1, info); + if (status != 0) + return status; + + (*info->fprintf_func) (info->stream, "0x"); + pos++; + val = (buffer[0] ^ 0x80) - 0x80; + (*info->print_address_func) (memaddr + pos + val, info); + format &= ~M6811_OP_JUMP_REL; + } + else if (format & M6812_OP_JUMP_REL16) + { + status = read_memory (memaddr + pos, &buffer[0], 2, info); + if (status != 0) + return status; + + pos += 2; + val = (((buffer[0] << 8) | buffer[1]) ^ 0x8000) - 0x8000; + + (*info->fprintf_func) (info->stream, "0x"); + (*info->print_address_func) (memaddr + pos + val, info); + format &= ~M6812_OP_JUMP_REL16; + } + + if (format & M6812_OP_PAGE) { - (*info->fprintf_func) (info->stream, "; Error, size: %d expect %d", - pos, opcode->size); + status = read_memory (memaddr + pos + offset, &buffer[0], 1, info); + if (status != 0) + return status; + + pos += 1; + + val = buffer[0]; + (*info->fprintf_func) (info->stream, ", 0x%x", (unsigned) val); } + +#ifdef DEBUG + /* Consistency check. 'format' must be 0, so that we have handled + all formats; and the computed size of the insn must match the + opcode table content. */ + if (format & ~(M6811_OP_PAGE4 | M6811_OP_PAGE3 | M6811_OP_PAGE2)) + (*info->fprintf_func) (info->stream, "; Error, format: %lx", format); + + if (pos != opcode->size) + (*info->fprintf_func) (info->stream, "; Error, size: %ld expect %d", + pos, opcode->size); #endif return pos; } /* Opcode not recognized. */ if (format == M6811_OP_PAGE2 && arch & cpu6812 - && ((code >= 0x30 && code <= 0x39) || (code >= 0x40 && code <= 0xff))) - (*info->fprintf_func) (info->stream, "trap\t#%d", code & 0x0ff); + && ((code >= 0x30 && code <= 0x39) || (code >= 0x40))) + (*info->fprintf_func) (info->stream, "trap\t#0x%02x", code & 0x0ff); else if (format == M6811_OP_PAGE2) (*info->fprintf_func) (info->stream, ".byte\t0x%02x, 0x%02x", @@ -592,17 +833,25 @@ print_insn (memaddr, info, arch) /* Disassemble one instruction at address 'memaddr'. Returns the number of bytes used by that instruction. */ int -print_insn_m68hc11 (memaddr, info) - bfd_vma memaddr; - struct disassemble_info *info; +print_insn_m68hc11 (bfd_vma memaddr, struct disassemble_info* info) { return print_insn (memaddr, info, cpu6811); } int -print_insn_m68hc12 (memaddr, info) - bfd_vma memaddr; - struct disassemble_info *info; +print_insn_m68hc12 (bfd_vma memaddr, struct disassemble_info* info) { return print_insn (memaddr, info, cpu6812); } + +int +print_insn_m9s12x (bfd_vma memaddr, struct disassemble_info* info) +{ + return print_insn (memaddr, info, cpu6812|cpu9s12x); +} + +int +print_insn_m9s12xg (bfd_vma memaddr, struct disassemble_info* info) +{ + return print_insn (memaddr, info, cpuxgate); +}