ColdFire target.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2196 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 140 insertions, 0 deletions

diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
new file mode 100644
index 0000000000..29e02e8bb2
--- /dev/null
+++ b/target-m68k/cpu.h
@@ -0,0 +1,140 @@
+/*
+ * m68k virtual CPU header
+ * 
+ *  Copyright (c) 2005-2006 CodeSourcery
+ *  Written by Paul Brook
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef CPU_M68K_H
+#define CPU_M68K_H
+
+#define TARGET_LONG_BITS 32
+
+#include "cpu-defs.h"
+
+#include "softfloat.h"
+
+#define MAX_QREGS 32
+
+#define TARGET_HAS_ICE 1
+
+#define EXCP_ACCESS         2   /* Access (MMU) error.  */
+#define EXCP_ADDRESS        3   /* Address error.  */
+#define EXCP_ILLEGAL        4   /* Illegal instruction.  */
+#define EXCP_DIV0           5   /* Divide by zero */
+#define EXCP_PRIVILEGE      8   /* Privilege violation.  */
+#define EXCP_TRACE          9
+#define EXCP_LINEA          10  /* Unimplemented line-A (MAC) opcode.  */
+#define EXCP_LINEF          11  /* Unimplemented line-F (FPU) opcode.  */
+#define EXCP_DEBUGNBP       12  /* Non-breakpoint debug interrupt.  */
+#define EXCP_DEBEGBP        13  /* Breakpoint debug interrupt.  */
+#define EXCP_FORMAT         14  /* RTE format error.  */
+#define EXCP_UNINITIALIZED  15
+#define EXCP_TRAP0          32   /* User trap #0.  */
+#define EXCP_TRAP15         47   /* User trap #15.  */
+#define EXCP_UNSUPPORTED    61
+#define EXCP_ICE            13
+
+typedef struct CPUM68KState {
+    uint32_t dregs[8];
+    uint32_t aregs[8];
+    uint32_t pc;
+    uint32_t sr;
+
+    /* Condition flags.  */
+    uint32_t cc_op;
+    uint32_t cc_dest;
+    uint32_t cc_src;
+    uint32_t cc_x;
+
+    float64 fregs[8];
+    float64 fp_result;
+    uint32_t fpcr;
+    uint32_t fpsr;
+    float_status fp_status;
+
+    /* Temporary storage for DIV helpers.  */
+    uint32_t div1;
+    uint32_t div2;
+    
+    /* MMU status.  */
+    struct {
+        uint32_t ar;
+    } mmu;
+    /* ??? remove this.  */
+    uint32_t t1;
+
+    /* exception/interrupt handling */
+    jmp_buf jmp_env;
+    int exception_index;
+    int interrupt_request;
+    int user_mode_only;
+    uint32_t address;
+
+    uint32_t qregs[MAX_QREGS];
+
+    CPU_COMMON
+} CPUM68KState;
+
+CPUM68KState *cpu_m68k_init(void);
+int cpu_m68k_exec(CPUM68KState *s);
+void cpu_m68k_close(CPUM68KState *s);
+/* you can call this signal handler from your SIGBUS and SIGSEGV
+   signal handlers to inform the virtual CPU of exceptions. non zero
+   is returned if the signal was handled by the virtual CPU.  */
+struct siginfo;
+int cpu_m68k_signal_handler(int host_signum, struct siginfo *info, 
+                           void *puc);
+void cpu_m68k_flush_flags(CPUM68KState *, int);
+
+enum {
+    CC_OP_DYNAMIC, /* Use env->cc_op  */
+    CC_OP_FLAGS, /* CC_DEST = CVZN, CC_SRC = unused */
+    CC_OP_LOGIC, /* CC_DEST = result, CC_SRC = unused */
+    CC_OP_ADD,   /* CC_DEST = result, CC_SRC = source */
+    CC_OP_SUB,   /* CC_DEST = result, CC_SRC = source */
+    CC_OP_CMPB,  /* CC_DEST = result, CC_SRC = source */
+    CC_OP_CMPW,  /* CC_DEST = result, CC_SRC = source */
+    CC_OP_ADDX,  /* CC_DEST = result, CC_SRC = source */
+    CC_OP_SUBX,  /* CC_DEST = result, CC_SRC = source */
+    CC_OP_SHL,   /* CC_DEST = source, CC_SRC = shift */
+    CC_OP_SHR,   /* CC_DEST = source, CC_SRC = shift */
+    CC_OP_SAR,   /* CC_DEST = source, CC_SRC = shift */
+};
+
+#define CCF_C 0x01
+#define CCF_V 0x02
+#define CCF_Z 0x04
+#define CCF_N 0x08
+#define CCF_X 0x01
+
+typedef struct m68k_def_t m68k_def_t;
+
+m68k_def_t *m68k_find_by_name(const char *);
+void cpu_m68k_register(CPUM68KState *, m68k_def_t *);
+
+#define M68K_FPCR_PREC (1 << 6)
+
+#ifdef CONFIG_USER_ONLY
+/* Linux uses 8k pages.  */
+#define TARGET_PAGE_BITS 13
+#else
+/* Smallest TLB entry size is 1k.  */ 
+#define TARGET_PAGE_BITS 10
+#endif
+#include "cpu-all.h"
+
+#endif