/* Basic floating-point 3-address register format:
* mnemonic %fs1,%fs2,%fd */
static void flop_12d(std::ostream &stream, char *mnemonic, uint32_t pc, uint32_t insn)
{
char newname[256];
const char *const suffix[4] = { "ss", "sd", "ds", "dd" };
const char *prefix_d, *prefix_p;
prefix_p = (insn & 0x400) ? "p" : "";
prefix_d = (insn & 0x200) ? "d." : "";
/* Special case: pf[m]am and pf[m]sm families are always pipelined, so they
do not have a prefix. Also, for the pfmam and pfmsm families, replace
any 'a' in the mnemonic with 'm' and prepend an 'm'. */
if ((insn & 0x7f) < 0x20)
{
int is_pfam = insn & 0x400;
if (!is_pfam)
{
char *op = mnemonic;
char *np = newname + 1;
newname[0] = 'm';
while (*op)
{
if (*op == 'a')
*np = 'm';
else
*np = *op;
np++;
op++;
}
*np = 0;
mnemonic = newname;
}
prefix_p = "";
}
/* Special case: pfgt/pfle-- R-bit distinguishes the two. */
if ((insn & 0x7f) == 0x34)
{
const char *const mn[2] = { "fgt.", "fle." };
int r = (insn & 0x080) >> 7;
int s = (insn & 0x100) ? 3 : 0;
util::stream_format(stream, "%s%s%s%s\t%%f%d,%%f%d,%%f%d", prefix_d, prefix_p, mn[r],
suffix[s], get_fsrc1 (insn), get_fsrc2 (insn), get_fdest (insn));
}
else
{
/* Integer (mixed) 2-address isrc1ni,fdest. */
static void int_1d(std::ostream &stream, char *mnemonic, uint32_t pc, uint32_t insn)
{
util::stream_format(stream, "%s\t%%r%d,%%f%d", mnemonic, get_isrc1 (insn), get_fdest (insn));
}
}
/* Special case: pfgt/pfle-- R-bit distinguishes the two. */
if ((insn & 0x7f) == 0x34)
{
const char *const mn[2] = { "fgt.", "fle." };
int r = (insn & 0x080) >> 7;
int s = (insn & 0x100) ? 3 : 0;
util::stream_format(stream, "%s%s%s%s\t%%f%d,%%f%d,%%f%d", prefix_d, prefix_p, mn[r],
suffix[s], get_fsrc1 (insn), get_fsrc2 (insn), get_fdest (insn));
}
else
{
int s = (insn & 0x180) >> 7;
util::stream_format(stream, "%s%s%s%s\t%%f%d,%%f%d,%%f%d", prefix_d, prefix_p, mnemonic,
suffix[s], get_fsrc1 (insn), get_fsrc2 (insn), get_fdest (insn));
}
}
/* Floating-point 2-address register format:
* mnemonic %fs1,%fd */
static void flop_1d(std::ostream &stream, char *mnemonic, uint32_t pc, uint32_t insn)
{
const char *const suffix[4] = { "ss", "sd", "ds", "dd" };
const char *prefix_d, *prefix_p;
int s = (insn & 0x180) >> 7;
prefix_p = (insn & 0x400) ? "p" : "";
prefix_d = (insn & 0x200) ? "d." : "";
util::stream_format(stream, "%s%s%s%s\t%%f%d,%%f%d", prefix_d, prefix_p, mnemonic,
suffix[s], get_fsrc1 (insn), get_fdest (insn));
/* Integer (mixed) 2-address isrc1ni,fdest. */
static void int_1d(char *buf, char *mnemonic, UINT32 pc, UINT32 insn)
{
sprintf(buf, "%s\t%%r%d,%%f%d", mnemonic, get_isrc1 (insn), get_fdest (insn));
}
