2008-09-25 Joel Sherrill <joel.sherrill@oarcorp.com>

	* Makefile.am, configure.ac, sh7032/score/cpu_asm.c,
	sh7045/score/cpu_asm.c, sh7750/score/cpu_asm.c: Move duplicated
	context switch code to score/cpu and provide an interrupt handling
	stub for the GDB SuperH simulator since it does not support
	interrupts or devices. This has been used to run tests on the
	simulator BSP as SH1, SH2, and SH4.
	* shgdb/score/cpu_asm.c, shgdb/score/ispshgdb.c: New files.

1 files changed, 0 insertions, 200 deletions

diff --git a/c/src/lib/libcpu/sh/sh7750/score/cpu_asm.c b/c/src/lib/libcpu/sh/sh7750/score/cpu_asm.c
index 979a42e102..11a5dab76f 100644
--- a/c/src/lib/libcpu/sh/sh7750/score/cpu_asm.c
+++ b/c/src/lib/libcpu/sh/sh7750/score/cpu_asm.c
@@ -51,206 +51,6 @@ extern proc_ptr         _Hardware_isr_Table[];
 register unsigned long  *stack_ptr asm("r15");
 
 /*
- *  _CPU_Context_save_fp_context
- *
- *  This routine is responsible for saving the FP context
- *  at *fp_context_ptr.  If the point to load the FP context
- *  from is changed then the pointer is modified by this routine.
- *
- *  Sometimes a macro implementation of this is in cpu.h which dereferences
- *  the ** and a similarly named routine in this file is passed something
- *  like a (Context_Control_fp *).  The general rule on making this decision
- *  is to avoid writing assembly language.
- */
-
-void _CPU_Context_save_fp(
-  Context_Control_fp **fp_context_ptr     /* r4 */
-)
-{
-#if SH_HAS_FPU
-
-asm volatile("\n\
-    mov.l   @%0,r4    \n\
-    add     %1,r4\n\
-    sts.l   fpscr,@-r4\n\
-    sts.l   fpul,@-r4\n\
-    lds     %2,fpscr\n\
-    fmov    dr14,@-r4\n\
-    fmov    dr12,@-r4\n\
-    fmov    dr10,@-r4\n\
-    fmov    dr8,@-r4\n\
-    fmov    dr6,@-r4\n\
-    fmov    dr4,@-r4\n\
-    fmov    dr2,@-r4\n\
-    fmov    dr0,@-r4\n\
-    "
-#ifdef SH4_USE_X_REGISTERS
-    "\
-    lds     %3,fpscr\n\
-    fmov    xd14,@-r4\n\
-    fmov    xd12,@-r4\n\
-    fmov    xd10,@-r4\n\
-    fmov    xd8,@-r4\n\
-    fmov    xd6,@-r4\n\
-    fmov    xd4,@-r4\n\
-    fmov    xd2,@-r4\n\
-    fmov    xd0,@-r4\n\
-    "
-#endif
-   "lds     %4,fpscr\n\
-   "
-    :
-    : "r"(fp_context_ptr), "r"(sizeof(Context_Control_fp)),
-      "r"(SH4_FPSCR_SZ), "r"(SH4_FPSCR_PR | SH4_FPSCR_SZ), "r"(SH4_FPSCR_PR)
-    : "r4", "r0");
-
-#endif
-}
-
-/*
- *  _CPU_Context_restore_fp_context
- *
- *  This routine is responsible for restoring the FP context
- *  at *fp_context_ptr.  If the point to load the FP context
- *  from is changed then the pointer is modified by this routine.
- *
- *  Sometimes a macro implementation of this is in cpu.h which dereferences
- *  the ** and a similarly named routine in this file is passed something
- *  like a (Context_Control_fp *).  The general rule on making this decision
- *  is to avoid writing assembly language.
- */
-
-void _CPU_Context_restore_fp(
-  Context_Control_fp **fp_context_ptr     /* r4 */
-)
-{
-#if SH_HAS_FPU
-
-asm volatile("\n\
-    mov.l   @%0,r4    \n\
-    "
-#ifdef SH4_USE_X_REGISTERS
-    "\n\
-    lds     %1,fpscr\n\
-    fmov    @r4+,xd0\n\
-    fmov    @r4+,xd2\n\
-    fmov    @r4+,xd4\n\
-    fmov    @r4+,xd6\n\
-    fmov    @r4+,xd8\n\
-    fmov    @r4+,xd10\n\
-    fmov    @r4+,xd12\n\
-    fmov    @r4+,xd14\n\
-    "
-#endif
-    "\n\
-    lds     %2,fpscr\n\
-    fmov    @r4+,dr0\n\
-    fmov    @r4+,dr2\n\
-    fmov    @r4+,dr4\n\
-    fmov    @r4+,dr6\n\
-    fmov    @r4+,dr8\n\
-    fmov    @r4+,dr10\n\
-    fmov    @r4+,dr12\n\
-    fmov    @r4+,dr14\n\
-    lds.l   @r4+,fpul\n\
-    lds.l   @r4+,fpscr\n\
-    " :
-    : "r"(fp_context_ptr), "r"(SH4_FPSCR_PR | SH4_FPSCR_SZ), "r"(SH4_FPSCR_SZ)
-    : "r4", "r0");
-
-#endif
-}
-
-/*  _CPU_Context_switch
- *
- *  This routine performs a normal non-FP context switch.
- */
-
-/*  within __CPU_Context_switch:
- *  _CPU_Context_switch
- *  _CPU_Context_restore
- *
- *  This routine is generally used only to restart self in an
- *  efficient manner.  It may simply be a label in _CPU_Context_switch.
- *
- * NOTE: It should be safe not to store r4, r5
- *
- * NOTE: It is doubtful if r0 is really needed to be stored
- *
- * NOTE: gbr is added, but should not be necessary, as it is
- *	only used globally in this port.
- */
-
-/*
- * FIXME: This is an ugly hack, but we wanted to avoid recalculating
- *        the offset each time Context_Control is changed
- */
-void __CPU_Context_switch(
-  Context_Control  *run,	/* r4 */
-  Context_Control  *heir	/* r5 */
-)
-{
-
-asm volatile("\n\
-	.global __CPU_Context_switch\n\
-__CPU_Context_switch:\n\
-\n\
-	add	%0,r4\n\
-  \n\
-	stc.l   sr,@-r4\n\
-	stc.l	gbr,@-r4\n\
-	mov.l   r0,@-r4\n\
-	mov.l   r1,@-r4\n\
-	mov.l   r2,@-r4\n\
-	mov.l   r3,@-r4\n\
-\n\
-	mov.l   r6,@-r4\n\
-	mov.l   r7,@-r4\n\
-	mov.l	r8,@-r4\n\
-	mov.l	r9,@-r4\n\
-	mov.l	r10,@-r4\n\
-	mov.l	r11,@-r4\n\
-	mov.l	r12,@-r4\n\
-	mov.l	r13,@-r4\n\
-	mov.l   r14,@-r4\n\
-	sts.l   pr,@-r4\n\
-	sts.l   mach,@-r4\n\
-	sts.l   macl,@-r4\n\
-	mov.l   r15,@-r4\n\
-\n\
-	mov     r5, r4"
-  :: "i" (sizeof(Context_Control))
-  );
-
-  asm volatile("\n\
-	.global __CPU_Context_restore\n\
-__CPU_Context_restore:\n\
-	mov.l   @r4+,r15\n\
-	lds.l   @r4+,macl\n\
-	lds.l   @r4+,mach\n\
-	lds.l   @r4+,pr\n\
-	mov.l   @r4+,r14\n\
-	mov.l   @r4+,r13\n\
-	mov.l   @r4+,r12\n\
-	mov.l   @r4+,r11\n\
-	mov.l   @r4+,r10\n\
-	mov.l   @r4+,r9\n\
-	mov.l   @r4+,r8\n\
-	mov.l   @r4+,r7\n\
-	mov.l   @r4+,r6\n\
-\n\
-	mov.l   @r4+,r3\n\
-	mov.l   @r4+,r2\n\
-	mov.l   @r4+,r1\n\
-	mov.l   @r4+,r0\n\
-	ldc.l   @r4+,gbr\n\
-	ldc.l   @r4+,sr\n\
-\n\
-	rts\n\
-	nop" );
-}
-
-/*
  *  This routine provides the RTEMS interrupt management.
  */