summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/xmon/spu.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/xmon/spu.h')
-rw-r--r--arch/powerpc/xmon/spu.h115
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/powerpc/xmon/spu.h b/arch/powerpc/xmon/spu.h
new file mode 100644
index 0000000000..2d13b1a5fa
--- /dev/null
+++ b/arch/powerpc/xmon/spu.h
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* SPU ELF support for BFD.
+
+ Copyright 2006 Free Software Foundation, Inc.
+
+ This file is part of GDB, GAS, and the GNU binutils.
+
+ */
+
+
+/* These two enums are from rel_apu/common/spu_asm_format.h */
+/* definition of instruction format */
+typedef enum {
+ RRR,
+ RI18,
+ RI16,
+ RI10,
+ RI8,
+ RI7,
+ RR,
+ LBT,
+ LBTI,
+ IDATA,
+ UNKNOWN_IFORMAT
+} spu_iformat;
+
+/* These values describe assembly instruction arguments. They indicate
+ * how to encode, range checking and which relocation to use. */
+typedef enum {
+ A_T, /* register at pos 0 */
+ A_A, /* register at pos 7 */
+ A_B, /* register at pos 14 */
+ A_C, /* register at pos 21 */
+ A_S, /* special purpose register at pos 7 */
+ A_H, /* channel register at pos 7 */
+ A_P, /* parenthesis, this has to separate regs from immediates */
+ A_S3,
+ A_S6,
+ A_S7N,
+ A_S7,
+ A_U7A,
+ A_U7B,
+ A_S10B,
+ A_S10,
+ A_S11,
+ A_S11I,
+ A_S14,
+ A_S16,
+ A_S18,
+ A_R18,
+ A_U3,
+ A_U5,
+ A_U6,
+ A_U7,
+ A_U14,
+ A_X16,
+ A_U18,
+ A_MAX
+} spu_aformat;
+
+enum spu_insns {
+#define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
+ TAG,
+#define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
+ TAG,
+#include "spu-insns.h"
+#undef APUOP
+#undef APUOPFB
+ M_SPU_MAX
+};
+
+struct spu_opcode
+{
+ spu_iformat insn_type;
+ unsigned int opcode;
+ char *mnemonic;
+ int arg[5];
+};
+
+#define SIGNED_EXTRACT(insn,size,pos) (((int)((insn) << (32-size-pos))) >> (32-size))
+#define UNSIGNED_EXTRACT(insn,size,pos) (((insn) >> pos) & ((1 << size)-1))
+
+#define DECODE_INSN_RT(insn) (insn & 0x7f)
+#define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f)
+#define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f)
+#define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f)
+
+#define DECODE_INSN_I10(insn) SIGNED_EXTRACT(insn,10,14)
+#define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT(insn,10,14)
+
+/* For branching, immediate loads, hbr and lqa/stqa. */
+#define DECODE_INSN_I16(insn) SIGNED_EXTRACT(insn,16,7)
+#define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT(insn,16,7)
+
+/* for stop */
+#define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT(insn,14,0)
+
+/* For ila */
+#define DECODE_INSN_I18(insn) SIGNED_EXTRACT(insn,18,7)
+#define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT(insn,18,7)
+
+/* For rotate and shift and generate control mask */
+#define DECODE_INSN_I7(insn) SIGNED_EXTRACT(insn,7,14)
+#define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT(insn,7,14)
+
+/* For float <-> int conversion */
+#define DECODE_INSN_I8(insn) SIGNED_EXTRACT(insn,8,14)
+#define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT(insn,8,14)
+
+/* For hbr */
+#define DECODE_INSN_I9a(insn) ((SIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
+#define DECODE_INSN_I9b(insn) ((SIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
+#define DECODE_INSN_U9a(insn) ((UNSIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
+#define DECODE_INSN_U9b(insn) ((UNSIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
+