/* Disassembly routines for TMS320C30 architecture
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
This program is free software; you can redistribute it and/or modify
#define PARALLEL_INSN 2
/* Gets the type of instruction based on the top 2 or 3 bits of the
- instruction word. */
+ instruction word. */
#define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000)
-/* Instruction types. */
+/* Instruction types. */
#define TWO_OPERAND_1 0x00000000
#define TWO_OPERAND_2 0x40000000
#define THREE_OPERAND 0x20000000
#define MUL_ADDS 0x80000000
#define BRANCHES 0x60000000
-/* Specific instruction id bits. */
+/* Specific instruction id bits. */
#define NORMAL_IDEN 0x1F800000
#define PAR_STORE_IDEN 0x3E000000
#define MUL_ADD_IDEN 0x2C000000
#define BR_IMM_IDEN 0x1F000000
#define BR_COND_IDEN 0x1C3F0000
-/* Addressing modes. */
+/* Addressing modes. */
#define AM_REGISTER 0x00000000
#define AM_DIRECT 0x00200000
#define AM_INDIRECT 0x00400000
#define REG_AR0 0x08
#define LDP_INSN 0x08700000
-/* TMS320C30 program counter for current instruction. */
+/* TMS320C30 program counter for current instruction. */
static unsigned int _pc;
struct instruction
- {
- int type;
- template *tm;
- partemplate *ptm;
- };
+{
+ int type;
+ template *tm;
+ partemplate *ptm;
+};
int get_tic30_instruction PARAMS ((unsigned long, struct instruction *));
int print_two_operand
disassemble_info *info;
{
unsigned long insn_word;
- struct instruction insn =
- {0, NULL, NULL};
+ struct instruction insn = { 0, NULL, NULL };
bfd_vma bufaddr = pc - info->buffer_vma;
- /* Obtain the current instruction word from the buffer. */
+ /* Obtain the current instruction word from the buffer. */
insn_word = (*(info->buffer + bufaddr) << 24) | (*(info->buffer + bufaddr + 1) << 16) |
(*(info->buffer + bufaddr + 2) << 8) | *(info->buffer + bufaddr + 3);
_pc = pc / 4;
/* Get the instruction refered to by the current instruction word
- and print it out based on its type. */
+ and print it out based on its type. */
if (!get_tic30_instruction (insn_word, &insn))
return -1;
switch (GET_TYPE (insn_word))
if (insn->tm->opcode_modifier == AddressMode)
{
int src_op, dest_op;
- /* Determine whether instruction is a store or a normal instruction. */
+ /* Determine whether instruction is a store or a normal instruction. */
if ((insn->tm->operand_types[1] & (Direct | Indirect)) == (Direct | Indirect))
{
src_op = 1;
src_op = 0;
dest_op = 1;
}
- /* Get the destination register. */
+ /* Get the destination register. */
if (insn->tm->operands == 2)
get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]);
- /* Get the source operand based on addressing mode. */
+ /* Get the source operand based on addressing mode. */
switch (insn_word & AddressMode)
{
case AM_REGISTER:
- /* Check for the NOP instruction before getting the operand. */
+ /* Check for the NOP instruction before getting the operand. */
if ((insn->tm->operand_types[0] & NotReq) == 0)
get_register_operand ((insn_word & 0x0000001F), operand[src_op]);
break;
get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]);
break;
case AM_IMM:
- /* Get the value of the immediate operand based on variable type. */
+ /* Get the value of the immediate operand based on variable type. */
switch (insn->tm->imm_arg_type)
{
case Imm_Float:
default:
return 0;
}
- /* Handle special case for LDP instruction. */
+ /* Handle special case for LDP instruction. */
if ((insn_word & 0xFFFFFF00) == LDP_INSN)
{
strcpy (name, "ldp");
}
}
}
- /* Handle case for stack and rotate instructions. */
+ /* Handle case for stack and rotate instructions. */
else if (insn->tm->operands == 1)
{
if (insn->tm->opcode_modifier == StackOp)
get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]);
}
}
- /* Output instruction to stream. */
+ /* Output instruction to stream. */
info->fprintf_func (info->stream, " %s %s%c%s", name,
operand[0][0] ? operand[0] : "",
operand[1][0] ? ',' : ' ',
if (insn->ptm == NULL)
return 0;
/* Parse out the names of each of the parallel instructions from the
- q_insn1_insn2 format. */
+ q_insn1_insn2 format. */
name1 = (char *) strdup (insn->ptm->name + 2);
name2 = "";
len = strlen (name1);
break;
}
}
- /* Get the operands of the instruction based on the operand order. */
+ /* Get the operands of the instruction based on the operand order. */
switch (insn->ptm->oporder)
{
case OO_4op1:
if (insn->tm == NULL)
return 0;
- /* Get the operands for 24-bit immediate jumps. */
+ /* Get the operands for 24-bit immediate jumps. */
if (insn->tm->operand_types[0] & Imm24)
{
address = insn_word & 0x00FFFFFF;
sprintf (operand[0], "0x%lX", address);
print_label = 1;
}
- /* Get the operand for the trap instruction. */
+ /* Get the operand for the trap instruction. */
else if (insn->tm->operand_types[0] & IVector)
{
address = insn_word & 0x0000001F;
else
{
address = insn_word & 0x0000FFFF;
- /* Get the operands for the DB instructions. */
+ /* Get the operands for the DB instructions. */
if (insn->tm->operands == 2)
{
get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]);
else
get_register_operand (insn_word & 0x0000001F, operand[1]);
}
- /* Get the operands for the standard branches. */
+ /* Get the operands for the standard branches. */
else if (insn->tm->operands == 1)
{
if (insn_word & PCRel)
operand[0][0] ? operand[0] : "",
operand[1][0] ? ',' : ' ',
operand[1][0] ? operand[1] : "");
- /* Print destination of branch in relation to current symbol. */
+ /* Print destination of branch in relation to current symbol. */
if (print_label && info->symbols)
{
asymbol *sym = *info->symbols;
if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel))
{
address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4);
- /* Check for delayed instruction, if so adjust destination. */
+ /* Check for delayed instruction, if so adjust destination. */
if (insn_word & 0x00200000)
address += 2;
}
if (buffer == NULL)
return 0;
- /* Determine which bits identify the sections of the indirect operand based on the
- size in bytes. */
+ /* Determine which bits identify the sections of the indirect
+ operand based on the size in bytes. */
switch (size)
{
case 1:
{
size_t i, len;
int bufcnt;
-
+
len = strlen (current_ind->syntax);
for (i = 0, bufcnt = 0; i < len; i++, bufcnt++)
{
buffer[bufcnt] = current_ind->syntax[i];
if (buffer[bufcnt - 1] == 'a' && buffer[bufcnt] == 'r')
buffer[++bufcnt] = arnum + '0';
- if (buffer[bufcnt] == '(' && current_ind->displacement == DISP_REQUIRED)
+ if (buffer[bufcnt] == '('
+ && current_ind->displacement == DISP_REQUIRED)
{
sprintf (&buffer[bufcnt + 1], "%u", disp);
bufcnt += strlen (&buffer[bufcnt + 1]);
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