gdb/

2009-05-18  Jon Beniston <jon@beniston.com>

        * MAINTAINERS: Add lm32 target.
        * Makefile.in: Add lm32 dependencies.
        * NEWS: Indicate lm32 is a new target.
        * configure.tgt: Add lm32 targets.
        * lm32-tdep.c: New file.

gdb/testsuite
2009-05-18  Jon Beniston <jon@beniston.com>

        * gdb.asm/asm-source.exp: Add lm32 target.

include/gdb/
2009-05-18  Jon Beniston <jon@beniston.com>

        * sim-lm32.h: New file.

sim/
2009-05-18  Jon Beniston <jon@beniston.com>

        * MAINTAINERS: Add Jon Beniston as maintainer of lm32 sim.
        * configure.ac: Add lm32 target.
        * lm32: New directory.

sim/common
2009-05-18  Jon Beniston <jon@beniston.com>

        * gennltvals.sh: Add lm32 target.
        * nltvals.def: Add lm32 syscall definitions.

sim/lm32/
2009-05-18  Jon Beniston <jon@beniston.com>

        * Makefile.in: New file.
        * arch.c: New file.
        * arch.h: New file.
        * config.in: New file.
        * configure: New file.
        * configure.ac: New file.
        * cpu.c: New file.
        * cpu.h: New file.
        * cpuall.h: New file.
        * decode.c: New file.
        * decode.h: New file.
        * dv-lm32cpu.c: New file.
        * dv-lm32timer.c: New file.
        * dv-lm32uart.c: New file.
        * lm32.c: New file.
        * lm32-sim.h: New file.
        * mloop.in: New file.
        * model.c: New file.
        * sem.c: New file.
        * sem-switch.c: New file.
        * sim-if.c: New file.
        * sim-main.c: New file.
        * tconfig.in: New file.
        * traps.c: New file.
        * user.c: New file.

1 files changed, 349 insertions, 0 deletions

diff --git a/sim/lm32/cpu.h b/sim/lm32/cpu.h
new file mode 100644
index 0000000000..54146f40af
--- /dev/null
+++ b/sim/lm32/cpu.h
@@ -0,0 +1,349 @@
+/* CPU family header for lm32bf.
+
+THIS FILE IS MACHINE GENERATED WITH CGEN.
+
+Copyright 1996-2005 Free Software Foundation, Inc.
+
+This file is part of the GNU simulators.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+
+*/
+
+#ifndef CPU_LM32BF_H
+#define CPU_LM32BF_H
+
+/* Maximum number of instructions that are fetched at a time.
+   This is for LIW type instructions sets (e.g. m32r).  */
+#define MAX_LIW_INSNS 1
+
+/* Maximum number of instructions that can be executed in parallel.  */
+#define MAX_PARALLEL_INSNS 1
+
+/* CPU state information.  */
+typedef struct {
+  /* Hardware elements.  */
+  struct {
+  /* Program counter */
+  USI h_pc;
+#define GET_H_PC() CPU (h_pc)
+#define SET_H_PC(x) (CPU (h_pc) = (x))
+  /* General purpose registers */
+  SI h_gr[32];
+#define GET_H_GR(a1) CPU (h_gr)[a1]
+#define SET_H_GR(a1, x) (CPU (h_gr)[a1] = (x))
+  /* Control and status registers */
+  SI h_csr[32];
+#define GET_H_CSR(a1) CPU (h_csr)[a1]
+#define SET_H_CSR(a1, x) (CPU (h_csr)[a1] = (x))
+  } hardware;
+#define CPU_CGEN_HW(cpu) (& (cpu)->cpu_data.hardware)
+} LM32BF_CPU_DATA;
+
+/* Cover fns for register access.  */
+USI lm32bf_h_pc_get (SIM_CPU *);
+void lm32bf_h_pc_set (SIM_CPU *, USI);
+SI lm32bf_h_gr_get (SIM_CPU *, UINT);
+void lm32bf_h_gr_set (SIM_CPU *, UINT, SI);
+SI lm32bf_h_csr_get (SIM_CPU *, UINT);
+void lm32bf_h_csr_set (SIM_CPU *, UINT, SI);
+
+/* These must be hand-written.  */
+extern CPUREG_FETCH_FN lm32bf_fetch_register;
+extern CPUREG_STORE_FN lm32bf_store_register;
+
+typedef struct {
+  int empty;
+} MODEL_LM32_DATA;
+
+/* Instruction argument buffer.  */
+
+union sem_fields {
+  struct { /* no operands */
+    int empty;
+  } fmt_empty;
+  struct { /*  */
+    IADDR i_call;
+  } sfmt_bi;
+  struct { /*  */
+    UINT f_csr;
+    UINT f_r1;
+  } sfmt_wcsr;
+  struct { /*  */
+    UINT f_csr;
+    UINT f_r2;
+  } sfmt_rcsr;
+  struct { /*  */
+    IADDR i_branch;
+    UINT f_r0;
+    UINT f_r1;
+  } sfmt_be;
+  struct { /*  */
+    UINT f_r0;
+    UINT f_r1;
+    UINT f_uimm;
+  } sfmt_andi;
+  struct { /*  */
+    INT f_imm;
+    UINT f_r0;
+    UINT f_r1;
+  } sfmt_addi;
+  struct { /*  */
+    UINT f_r0;
+    UINT f_r1;
+    UINT f_r2;
+    UINT f_user;
+  } sfmt_user;
+#if WITH_SCACHE_PBB
+  /* Writeback handler.  */
+  struct {
+    /* Pointer to argbuf entry for insn whose results need writing back.  */
+    const struct argbuf *abuf;
+  } write;
+  /* x-before handler */
+  struct {
+    /*const SCACHE *insns[MAX_PARALLEL_INSNS];*/
+    int first_p;
+  } before;
+  /* x-after handler */
+  struct {
+    int empty;
+  } after;
+  /* This entry is used to terminate each pbb.  */
+  struct {
+    /* Number of insns in pbb.  */
+    int insn_count;
+    /* Next pbb to execute.  */
+    SCACHE *next;
+    SCACHE *branch_target;
+  } chain;
+#endif
+};
+
+/* The ARGBUF struct.  */
+struct argbuf {
+  /* These are the baseclass definitions.  */
+  IADDR addr;
+  const IDESC *idesc;
+  char trace_p;
+  char profile_p;
+  /* ??? Temporary hack for skip insns.  */
+  char skip_count;
+  char unused;
+  /* cpu specific data follows */
+  union sem semantic;
+  int written;
+  union sem_fields fields;
+};
+
+/* A cached insn.
+
+   ??? SCACHE used to contain more than just argbuf.  We could delete the
+   type entirely and always just use ARGBUF, but for future concerns and as
+   a level of abstraction it is left in.  */
+
+struct scache {
+  struct argbuf argbuf;
+};
+
+/* Macros to simplify extraction, reading and semantic code.
+   These define and assign the local vars that contain the insn's fields.  */
+
+#define EXTRACT_IFMT_EMPTY_VARS \
+  unsigned int length;
+#define EXTRACT_IFMT_EMPTY_CODE \
+  length = 0; \
+
+#define EXTRACT_IFMT_ADD_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_resv0; \
+  unsigned int length;
+#define EXTRACT_IFMT_ADD_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_resv0 = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_ADDI_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  INT f_imm; \
+  unsigned int length;
+#define EXTRACT_IFMT_ADDI_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_imm = EXTRACT_LSB0_INT (insn, 32, 15, 16); \
+
+#define EXTRACT_IFMT_ANDI_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_uimm; \
+  unsigned int length;
+#define EXTRACT_IFMT_ANDI_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_uimm = EXTRACT_LSB0_UINT (insn, 32, 15, 16); \
+
+#define EXTRACT_IFMT_ANDHII_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_uimm; \
+  unsigned int length;
+#define EXTRACT_IFMT_ANDHII_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_uimm = EXTRACT_LSB0_UINT (insn, 32, 15, 16); \
+
+#define EXTRACT_IFMT_B_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_resv0; \
+  unsigned int length;
+#define EXTRACT_IFMT_B_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_resv0 = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_BI_VARS \
+  UINT f_opcode; \
+  SI f_call; \
+  unsigned int length;
+#define EXTRACT_IFMT_BI_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_call = ((pc) + (((int) (((EXTRACT_LSB0_INT (insn, 32, 25, 26)) << (6))) >> (4)))); \
+
+#define EXTRACT_IFMT_BE_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  SI f_branch; \
+  unsigned int length;
+#define EXTRACT_IFMT_BE_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_branch = ((pc) + (((int) (((EXTRACT_LSB0_INT (insn, 32, 15, 16)) << (16))) >> (14)))); \
+
+#define EXTRACT_IFMT_ORI_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_uimm; \
+  unsigned int length;
+#define EXTRACT_IFMT_ORI_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_uimm = EXTRACT_LSB0_UINT (insn, 32, 15, 16); \
+
+#define EXTRACT_IFMT_RCSR_VARS \
+  UINT f_opcode; \
+  UINT f_csr; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_resv0; \
+  unsigned int length;
+#define EXTRACT_IFMT_RCSR_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_csr = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_resv0 = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_SEXTB_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_resv0; \
+  unsigned int length;
+#define EXTRACT_IFMT_SEXTB_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_resv0 = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_USER_VARS \
+  UINT f_opcode; \
+  UINT f_r0; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_user; \
+  unsigned int length;
+#define EXTRACT_IFMT_USER_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_r0 = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_user = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_WCSR_VARS \
+  UINT f_opcode; \
+  UINT f_csr; \
+  UINT f_r1; \
+  UINT f_r2; \
+  UINT f_resv0; \
+  unsigned int length;
+#define EXTRACT_IFMT_WCSR_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_csr = EXTRACT_LSB0_UINT (insn, 32, 25, 5); \
+  f_r1 = EXTRACT_LSB0_UINT (insn, 32, 20, 5); \
+  f_r2 = EXTRACT_LSB0_UINT (insn, 32, 15, 5); \
+  f_resv0 = EXTRACT_LSB0_UINT (insn, 32, 10, 11); \
+
+#define EXTRACT_IFMT_BREAK_VARS \
+  UINT f_opcode; \
+  UINT f_exception; \
+  unsigned int length;
+#define EXTRACT_IFMT_BREAK_CODE \
+  length = 4; \
+  f_opcode = EXTRACT_LSB0_UINT (insn, 32, 31, 6); \
+  f_exception = EXTRACT_LSB0_UINT (insn, 32, 25, 26); \
+
+/* Collection of various things for the trace handler to use.  */
+
+typedef struct trace_record {
+  IADDR pc;
+  /* FIXME:wip */
+} TRACE_RECORD;
+
+#endif /* CPU_LM32BF_H */