Re: [Qemu-devel] [ADD] PPC processor emulation

[J. Mayer]

target-ppc__exec.h.diff

inline helpers and definitions for PPC emulation.
Some of those helpers are redundant with qemu ones
and need to be replaced (ldxx & stxx)...

diff -urNbB -x CVS qemu-current/target-ppc/exec.h qemu/target-ppc/exec.h
--- qemu-current/target-ppc/exec.h      Thu Jan  1 01:00:00 1970
+++ qemu/target-ppc/exec.h      Tue Nov 11 01:15:08 2003
@@ -0,0 +1,157 @@
+/*
+ *  PPC emulation definitions for qemu.
+ * 
+ *  Copyright (c) 2003 Jocelyn Mayer
+ *
+ * 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
+ * Lesser 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
+ */
+#if !defined (__PPC_H__)
+#define __PPC_H__
+
+#include "dyngen-exec.h"
+
+register struct CPUPPCState *env asm(AREG0);
+register uint32_t T0 asm(AREG1);
+register uint32_t T1 asm(AREG2);
+register uint32_t T2 asm(AREG3);
+
+#define PARAM(n) ((uint32_t)PARAM##n)
+#define SPARAM(n) ((int32_t)PARAM##n)
+
+#define RETURN() __asm__ __volatile__("");
+
+#include "cpu.h"
+#include "exec-all.h"
+
+static inline uint8_t ld8 (uint32_t EA)
+{
+    return *((uint8_t *)EA);
+}
+
+static inline uint16_t ld16 (uint32_t EA)
+{
+    return __be16_to_cpu(*((uint16_t *)EA));
+}
+
+static inline uint16_t ld16r (uint32_t EA)
+{
+    return __le16_to_cpu(*((uint16_t *)EA));
+}
+
+static inline uint32_t ld32 (uint32_t EA)
+{
+    return __be32_to_cpu(*((uint32_t *)EA));
+}
+
+static inline uint32_t ld32r (uint32_t EA)
+{
+    return __le32_to_cpu(*((uint32_t *)EA));
+}
+
+static inline uint64_t ld64 (uint32_t EA)
+{
+    return __be64_to_cpu(*((uint64_t *)EA));
+}
+
+static inline uint64_t ld64r (uint32_t EA)
+{
+    return __le64_to_cpu(*((uint64_t *)EA));
+}
+
+static inline void st8 (uint32_t EA, uint8_t data)
+{
+    *((uint8_t *)EA) = data;
+}
+
+static inline void st16 (uint32_t EA, uint16_t data)
+{
+    *((uint16_t *)EA) = __cpu_to_be16(data);
+}
+
+static inline void st16r (uint32_t EA, uint16_t data)
+{
+    *((uint16_t *)EA) = __cpu_to_le16(data);
+}
+
+static inline void st32 (uint32_t EA, uint32_t data)
+{
+    *((uint32_t *)EA) = __cpu_to_be32(data);
+}
+
+static inline void st32r (uint32_t EA, uint32_t data)
+{
+    *((uint32_t *)EA) = __cpu_to_le32(data);
+}
+
+static inline void st64 (uint32_t EA, uint64_t data)
+{
+    *((uint64_t *)EA) = __cpu_to_be64(data);
+}
+
+static inline void st64r (uint32_t EA, uint64_t data)
+{
+    *((uint64_t *)EA) = __cpu_to_le64(data);
+}
+
+static inline void set_CRn(int n, uint8_t value)
+{
+    env->crf[n] = value;
+}
+
+static inline void set_carry (void)
+{
+    xer_ca = 1;
+}
+
+static inline void reset_carry (void)
+{
+    xer_ca = 0;
+}
+
+static inline void set_overflow (void)
+{
+    xer_so = 1;
+    xer_ov = 1;
+}
+
+static inline void reset_overflow (void)
+{
+    xer_ov = 0;
+}
+
+static inline uint32_t rotl (uint32_t i, int n)
+{
+    return ((i << n) | (i >> (32 - n)));
+}
+
+void raise_exception (int exception_index);
+void raise_exception_err (int exception_index, int error_code);
+
+uint32_t do_load_cr (void);
+void do_store_cr (uint32_t crn, uint32_t value);
+uint32_t do_load_xer (void);
+void do_store_xer (uint32_t value);
+uint32_t do_load_msr (void);
+void do_store_msr (uint32_t msr_value);
+uint32_t do_load_fpscr (void);
+void do_store_fpscr (uint8_t mask, uint32_t fp);
+
+int32_t do_sraw(int32_t Ta, uint32_t Tb);
+void do_lmw (int reg, uint32_t src);
+void do_stmw (int reg, uint32_t dest);
+void do_lsw (uint32_t reg, int count, uint32_t src);
+void do_stsw (uint32_t reg, int count, uint32_t dest);
+
+#endif /* !defined (__PPC_H__) */