PARSE_FN (vfreg);
PRINT_FN (vfreg);
-/* Various types of ARC operands, including insn suffixes.
+PARSE_FN (bc);
+PRINT_FN (bc);
+
+PARSE_FN (ftregbc);
+PRINT_FN (ftregbc);
+
+PARSE_FN (accdest);
+PRINT_FN (accdest);
+
+PARSE_FN (xyz);
+
+/* Various types of TXVU operands, including insn suffixes.
Fields are:
const struct txvu_operand txvu_operands[] =
{
-/* place holder (??? not sure if needed) */
+ /* place holder (??? not sure if needed) */
#define UNUSED 128
{ 0 },
-/* Destination indicator, with leading '.'. */
+ /* Destination indicator, with leading '.'. */
#define DOTDEST (UNUSED + 1)
{ 4, TXVU_SHIFT_DEST, TXVU_OPERAND_SUFFIX,
parse_dotdest, insert_dotdest, extract_dotdest, print_dotdest },
-/* ft reg */
+ /* ft reg */
#define FTREG (DOTDEST + 1)
{ 5, TXVU_SHIFT_FTREG, 0, parse_vfreg, 0, 0, print_vfreg },
-/* fs reg */
+ /* fs reg */
#define FSREG (FTREG + 1)
{ 5, TXVU_SHIFT_FSREG, 0, parse_vfreg, 0, 0, print_vfreg },
-/* fd reg */
+ /* fd reg */
#define FDREG (FSREG + 1)
{ 5, TXVU_SHIFT_FDREG, 0, parse_vfreg, 0, 0, print_vfreg },
+ /* broadcast */
+#define BC (FDREG + 1)
+ { 2, 0, 0, parse_bc, 0, 0, print_bc },
+
+ /* ftreg in broadcast case */
+#define FTREGBC (BC + 1)
+ { 5, TXVU_SHIFT_FTREG, 0, parse_ftregbc, 0, 0, print_ftregbc },
+
+ /* accumulator dest */
+#define ACCDEST (FTREGBC + 1)
+ { 0, 0, TXVU_OPERAND_FAKE, parse_accdest, 0, 0, print_accdest },
+
+ /* The XYZ operand is a fake one that is used to ensure only "xyz" is
+ specified. It simplifies the opmula and opmsub entries. */
+#define XYZ (FDREG + 1)
+ { 0, 0, TXVU_OPERAND_FAKE, parse_xyz, 0, 0, 0 },
+
/* end of list place holder */
{ 0 }
};
\f
/* Macros to put a field's value into the right place. */
-#define FT(x) (((x) & TXVU_MASK_VFREG) << TXVU_SHIFT_FTREG)
-#define FS(x) (((x) & TXVU_MASK_VFREG) << TXVU_SHIFT_FSREG)
-#define FD(x) (((x) & TXVU_MASK_VFREG) << TXVU_SHIFT_FDREG)
+/* FIXME: If assembler needs these, move to opcode/txvu.h. */
+
#define R(x,b,m) (((x) & (m)) << (b)) /* value X, mask M, at bit B */
+/* Upper Flag bits. */
+#define UF(x) R ((x), 27, 31)
+/* Upper REServed two bits next to flag bits. */
+#define URES(x) R ((x), 25, 3)
+/* The DEST field. */
+#define UDEST(x) R ((x), 21, 15)
+/* The FT reg field. */
+#define UFT(x) R ((x), TXVU_SHIFT_FTREG, TXVU_MASK_VFREG)
+/* The FS reg field. */
+#define UFS(x) R ((x), TXVU_SHIFT_FSREG, TXVU_MASK_VFREG)
+/* The FD reg field. */
+#define UFD(x) R ((x), TXVU_SHIFT_FDREG, TXVU_MASK_VFREG)
+/* The 4 bit opcode field. */
+#define UOP4(x) R ((x), 2, 15)
+/* The 6 bit opcode field. */
+#define UOP6(x) R ((x), 0, 63)
+/* The 9 bit opcode field. */
+#define UOP9(x) R ((x), 2, 0x1ff)
+/* The 11 bit opcode field. */
+#define UOP11(x) R ((x), 0, 0x7ff)
+/* The BroadCast field. */
+#define UBC(x) R ((x), 0, 3)
+
+/* Macros for special field values. */
+/* The upper 7 bits of the upper word. */
+#define UUBITS (UF (0) + URES (0))
+/* Mask for UBITS. */
+#define MUUBITS (UF (~0) + URES (~0))
+/* Mask for URES. */
+#define MURES URES (~0)
+/* Mask for OP4. */
+#define MUOP4 UOP4 (~0)
+/* Mask for OP6. */
+#define MUOP6 UOP6 (~0)
+/* Mask for OP9. */
+#define MUOP9 UOP9 (~0)
+/* Mask for OP11. */
+#define MUOP11 UOP11 (~0)
+
+/* A space, separates instruction name (mnemonic + mnemonic operands) from operands. */
+#define SP ' '
+
/* TXVU instructions.
[??? some of these comments are left over from the ARC port from which
this code is borrowed, delete in time]
/* Macros appear first. */
/* ??? Any aliases? */
- /* The rest of these needn't be sorted, but it helps to find them if they
- are. */
- { "abs", { DOTDEST, ' ', FTREG, FSREG }, 0xfe0001ff, 0x1fd, 0 },
- { "add", { DOTDEST, ' ', FDREG, FSREG, FTREG }, 0xfe00003f, 0x28, 0 },
+ /* The rest of these needn't be sorted, but it helps to find them if they are. */
+ { "abs", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x1fd) },
+ { "add", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x28) },
+ { "addi", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x22) },
+ { "addq", { DOTDEST, SP, FDREG, FSREG, 'q' }, MURES + UFT (~0) + MUOP6, UOP6 (0x20) },
+ { "add", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + UOP4 (~0), UOP4 (0) },
+ { "adda", { DOTDEST, SP, ACCDEST, FSREG, FTREG }, MURES + MUOP11, UOP11 (0x2bc) },
+ { "addai", { DOTDEST, SP, ACCDEST, FSREG, 'i' }, MURES + UFT (~0) + MUOP11, UOP11 (0x23e) },
+ { "addaq", { DOTDEST, SP, ACCDEST, FSREG, 'q' }, MURES + UFT (~0) + MUOP11, UOP11 (0x23c) },
+ { "adda", { BC, DOTDEST, SP, ACCDEST, FSREG, FTREGBC }, MURES + MUOP9, UOP9 (0xf) },
+ { "clip", { DOTDEST, SP, FSREG }, MURES + UDEST (~0) + UFT (~0) + MUOP11, UDEST (0xf) + UOP11 (0x1ff) },
+ { "ftoi0", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x17c) },
+ { "ftoi4", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x17d) },
+ { "ftoi12", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x17e) },
+ { "ftoi15", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x17f) },
+ { "itof0", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x13c) },
+ { "itof4", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x13d) },
+ { "itof12", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x13e) },
+ { "itof15", { DOTDEST, SP, FTREG, FSREG }, MURES + MUOP11, UOP11 (0x13f) },
+ { "madd", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x29) },
+ { "maddi", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x23) },
+ { "maddq", { DOTDEST, SP, FDREG, FSREG, 'q' }, MURES + UFT (~0) + MUOP6, UOP6 (0x21) },
+ { "madd", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + MUOP4, UOP4 (0x2) },
+ { "madda", { DOTDEST, SP, ACCDEST, FSREG, FTREG }, MURES + MUOP11, UOP11 (0x2bd) },
+ { "maddai", { DOTDEST, SP, ACCDEST, FSREG, 'i' }, MURES + UFT (~0) + MUOP11, UOP11 (0x23f) },
+ { "maddaq", { DOTDEST, SP, ACCDEST, FSREG, 'q' }, MURES + UFT (~0) + MUOP11, UOP11 (0x23d) },
+ { "madda", { BC, DOTDEST, SP, ACCDEST, FSREG, FTREGBC }, MURES + MUOP9, UOP9 (0x2f) },
+ { "max", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x2b) },
+ { "maxi", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x2d) },
+ { "max", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + MUOP4, UOP4 (0x4) },
+ /* FIXME: mini or min? */
+ { "mini", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x2f) },
+ { "mini", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x1f) },
+ { "mini", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + MUOP4, UOP4 (0x5) },
+ { "msub", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x2d) },
+ { "msubi", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x27) },
+ { "msubq", { DOTDEST, SP, FDREG, FSREG, 'q' }, MURES + UFT (~0) + MUOP6, UOP6 (0x25) },
+ { "msub", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + MUOP4, UOP4 (0x3) },
+ { "msuba", { DOTDEST, SP, ACCDEST, FSREG, FTREG }, MURES + MUOP11, UOP11 (0x2fd) },
+ { "msubai", { DOTDEST, SP, ACCDEST, FSREG, 'i' }, MURES + UFT (~0) + MUOP11, UOP11 (0x27f) },
+ { "msubaq", { DOTDEST, SP, ACCDEST, FSREG, 'q' }, MURES + UFT (~0) + MUOP11, UOP11 (0x27d) },
+ { "msuba", { BC, DOTDEST, SP, ACCDEST, FSREG, FTREGBC }, MURES + MUOP9, UOP9 (0x3f) },
+ { "mul", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x2a) },
+ { "muli", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x1e) },
+ { "mulq", { DOTDEST, SP, FDREG, FSREG, 'q' }, MURES + UFT (~0) + MUOP6, UOP6 (0x1c) },
+ { "mul", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + UOP4 (~0), UOP4 (6) },
+ { "mula", { DOTDEST, SP, ACCDEST, FSREG, FTREG }, MURES + MUOP11, UOP11 (0x2be) },
+ { "mulai", { DOTDEST, SP, ACCDEST, FSREG, 'i' }, MURES + UFT (~0) + MUOP11, UOP11 (0x1fe) },
+ { "mulaq", { DOTDEST, SP, ACCDEST, FSREG, 'q' }, MURES + UFT (~0) + MUOP11, UOP11 (0x1fc) },
+ { "mula", { BC, DOTDEST, SP, ACCDEST, FSREG, FTREGBC }, MURES + MUOP9, UOP9 (0x6f) },
+ { "nop", { 0 }, MURES + UDEST (~0) + UFT (~0) + UFS (~0) + MUOP11, UOP11 (0x2ff) },
+ { "opmula", { DOTDEST, SP, ACCDEST, FSREG, FTREG, XYZ }, MURES + MUOP11, UOP11 (0x2fe) },
+ { "opmsub", { DOTDEST, SP, FDREG, FSREG, FTREG, XYZ }, MURES + MUOP6, UOP6 (0x2e) },
+ { "sub", { DOTDEST, SP, FDREG, FSREG, FTREG }, MURES + MUOP6, UOP6 (0x2c) },
+ { "subi", { DOTDEST, SP, FDREG, FSREG, 'i' }, MURES + UFT (~0) + MUOP6, UOP6 (0x26) },
+ { "subq", { DOTDEST, SP, FDREG, FSREG, 'q' }, MURES + UFT (~0) + MUOP6, UOP6 (0x24) },
+ { "sub", { BC, DOTDEST, SP, FDREG, FSREG, FTREGBC }, MURES + UOP4 (~0), UOP4 (1) },
+ { "suba", { DOTDEST, SP, ACCDEST, FSREG, FTREG }, MURES + MUOP11, UOP11 (0x2fc) },
+ { "subai", { DOTDEST, SP, ACCDEST, FSREG, 'i' }, MURES + UFT (~0) + MUOP11, UOP11 (0x27e) },
+ { "subaq", { DOTDEST, SP, ACCDEST, FSREG, 'q' }, MURES + UFT (~0) + MUOP11, UOP11 (0x27c) },
+ { "suba", { BC, DOTDEST, SP, ACCDEST, FSREG, FTREGBC }, MURES + MUOP9, UOP9 (0x1f) }
};
const int txvu_upper_opcodes_count = sizeof (txvu_upper_opcodes) / sizeof (txvu_opcodes[0]);
Each of the registers must specify the same value as the opcode.
??? Perhaps remove the duplication? */
static int dest;
+
+/* Value of BC to use.
+ The register specified for the ftreg must match the broadcast register
+ specified in the opcode. */
+static int bc;
\f
/* Init fns.
These are called before doing each of the respective activities. */
txvu_opcode_init_parse ()
{
dest = -1;
+ bc = -1;
}
/* Called by the disassembler before printing an instruction. */
txvu_opcode_init_print ()
{
dest = -1;
+ bc = -1;
}
\f
/* Destination choice support.
(*info->fprintf_func) (info->stream, "vf%ld", value);
print_dest (info, insn, dest);
}
+\f
+/* Broadcast handling. */
+
+static long
+parse_bc (pstr, errmsg)
+ char **pstr;
+ const char **errmsg;
+{
+ long dest = 0;
+
+ switch (**pstr)
+ {
+ case 'x' : case 'X' : dest = TXVU_BC_X; break;
+ case 'y' : case 'Y' : dest = TXVU_BC_Y; break;
+ case 'z' : case 'Z' : dest = TXVU_BC_Z; break;
+ case 'w' : case 'W' : dest = TXVU_BC_W; break;
+ default : *errmsg = "invalid `bc'"; return 0;
+ }
+ ++*pstr;
+
+ *errmsg = NULL;
+ return dest;
+}
+
+static void
+print_bc (info, insn, value)
+ disassemble_info *info;
+ TXVU_INSN insn;
+ long value;
+{
+ char c;
+
+ switch (value)
+ {
+ case TXVU_BC_X : c = 'x' ; break;
+ case TXVU_BC_Y : c = 'y' ; break;
+ case TXVU_BC_Z : c = 'z' ; break;
+ case TXVU_BC_W : c = 'w' ; break;
+ }
+
+ (*info->fprintf_func) (info->stream, "%c", c);
+}
+\f
+/* FT register in broadcast case. */
+
+static long
+parse_ftregbc (pstr, errmsg)
+ char **pstr;
+ const char **errmsg;
+{
+ char *str = *pstr;
+ char *start;
+ long reg;
+ int reg_bc;
+
+ if (tolower (str[0]) != 'v'
+ || tolower (str[1]) != 'f')
+ {
+ *errmsg = "unknown register";
+ return 0;
+ }
+
+ /* FIXME: quick hack until the framework works. */
+ start = str = str + 2;
+ while (*str && isdigit (*str))
+ ++str;
+ reg = atoi (start);
+ reg_bc = parse_bc (&str, errmsg);
+ if (*errmsg)
+ return 0;
+ if (reg_bc != bc)
+ {
+ *errmsg = "register `bc' does not match instruction `bc'";
+ return 0;
+ }
+ *pstr = str;
+ *errmsg = NULL;
+ return reg;
+}
+
+static void
+print_ftregbc (info, insn, value)
+ disassemble_info *info;
+ TXVU_INSN insn;
+ long value;
+{
+ (*info->fprintf_func) (info->stream, "vf%ld", value);
+ print_bc (info, insn, bc);
+}
+\f
+/* ACC handling. */
+
+static long
+parse_accdest (pstr, errmsg)
+ char **pstr;
+ const char **errmsg;
+{
+ char *str = *pstr;
+ long acc_dest = 0;
+
+ if (strncasecmp (str, "acc", 3) != 0)
+ {
+ *errmsg = "expecting `acc'";
+ return 0;
+ }
+ str += 3;
+ acc_dest = parse_dest (&str);
+ if (acc_dest == 0 || isalnum (*str))
+ {
+ *errmsg = "invalid `dest'";
+ return 0;
+ }
+ if (acc_dest != dest)
+ {
+ *errmsg = "acc `dest' does not match instruction `dest'";
+ return 0;
+ }
+ *pstr = str;
+ *errmsg = NULL;
+ /* Value isn't used, but we must return something. */
+ return 0;
+}
+
+static void
+print_accdest (info, insn, value)
+ disassemble_info *info;
+ TXVU_INSN insn;
+ long value;
+{
+ (*info->fprintf_func) (info->stream, "acc");
+ print_dest (info, insn, value);
+}
+\f
+/* XYZ operand handling.
+ This simplifies the opmula,opmsub entries by keeping them equivalent to
+ the others. */
+
+static long
+parse_xyz (pstr, errmsg)
+ char **pstr;
+ const char **errmsg;
+{
+ if (dest != (TXVU_DEST_X | TXVU_DEST_Y | TXVU_DEST_Z))
+ {
+ *errmsg = "expecting `xyz' for `dest' value";
+ return 0;
+ }
+ return 0;
+}
projects / binutils-gdb.git / commitdiff