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Improved display of register lists.

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This commit is contained in:
Nick Clifton
1997-09-12 18:41:26 +00:00
parent 410230cf6d
commit d0fd63cb8f
2 changed files with 57 additions and 12 deletions
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63
opcodes/v850-dis.c
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@ -164,9 +164,12 @@ disassemble (memaddr, info, insn)
static int list18_h_regs[32] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
static int list18_l_regs[32] = { 3, 2, 1, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 };
/* end-sanitize-v850eq */
int * regs;
int i;
int shown_one = false;
int * regs;
int i;
unsigned long int mask = 0;
int pc = false;
int sr = false;
switch (operand->shift)
{
@ -180,27 +183,63 @@ disassemble (memaddr, info, insn)
abort();
}
info->fprintf_func (info->stream, "{");
for (i = 0; i < 32; i++)
{
if (value & (1 << i))
{
if (shown_one)
info->fprintf_func (info->stream, ",");
else
shown_one = true;
switch (regs[ i ])
{
default: info->fprintf_func (info->stream, "%s", v850_reg_names[regs[ i ]]); break;
default: mask |= (1 << regs[ i ]); break;
/* start-sanitize-v850eq */
case 0: fprintf (stderr, "unknown pop reg: %d\n", i ); abort();
case -1: info->fprintf_func (info->stream, "PC "); break;
case -2: info->fprintf_func (info->stream, "SR"); break;
case -1: pc = true; break;
case -2: sr = true; break;
/* end-sanitize-v850eq */
}
}
}
info->fprintf_func (info->stream, "{");
if (mask || pc || sr)
{
if (mask)
{
unsigned int bit;
int shown_one = false;
for (bit = 0; bit < 32; bit++)
if (mask & (1 << bit))
{
unsigned long int first = bit;
unsigned long int last;
if (shown_one)
info->fprintf_func (info->stream, ", ");
else
shown_one = true;
info->fprintf_func (info->stream, v850_reg_names[first]);
for (bit++; bit < 32; bit++)
if ((mask & (1 << bit)) == 0)
break;
last = bit;
if (last > first + 1)
{
info->fprintf_func (info->stream, " - %s", v850_reg_names[ last - 1 ]);
}
}
}
if (pc)
info->fprintf_func (info->stream, "%sPC", mask ? ", " : "");
if (sr)
info->fprintf_func (info->stream, "%sSR", (mask || pc) ? ", " : "");
}
info->fprintf_func (info->stream, "}");
}
break;