From b0aba4c46b14204f7de6471512136de7003877c4 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 27 Apr 1998 16:10:16 +0000
Subject: Added swap of unsigned16

---
 c/src/exec/score/cpu/a29k/cpu.h        |  6 +++++-
 c/src/exec/score/cpu/hppa1.1/cpu.h     |  3 +++
 c/src/exec/score/cpu/i386/i386.h       | 21 +++++++++++++++++++--
 c/src/exec/score/cpu/i960/i960.h       |  3 +++
 c/src/exec/score/cpu/m68k/m68k.h       | 12 ++++++++++++
 c/src/exec/score/cpu/mips64orion/cpu.h |  3 +++
 c/src/exec/score/cpu/no_cpu/cpu.h      |  3 +++
 c/src/exec/score/cpu/powerpc/cpu.h     |  3 +++
 c/src/exec/score/cpu/sh/sh.h           | 12 ++++++++++++
 c/src/exec/score/cpu/sparc/cpu.h       |  3 +++
 c/src/exec/score/cpu/unix/cpu.h        |  3 +++
 11 files changed, 69 insertions(+), 3 deletions(-)

(limited to 'c/src/exec')

diff --git a/c/src/exec/score/cpu/a29k/cpu.h b/c/src/exec/score/cpu/a29k/cpu.h
index 326abaab5c..bf7f5230b9 100644
--- a/c/src/exec/score/cpu/a29k/cpu.h
+++ b/c/src/exec/score/cpu/a29k/cpu.h
@@ -961,7 +961,11 @@ void _CPU_Context_restore_fp(
  */
  
 #define CPU_swap_u32( value ) \
-  ((value&0xff) << 24) | (((value >> 8)&0xff) << 16) | (((value >> 16)&0xff) << 8) | ((value>>24)&0xff) 
+  ((value&0xff) << 24) | (((value >> 8)&0xff) << 16) | \
+    (((value >> 16)&0xff) << 8) | ((value>>24)&0xff) 
+
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
 
 #ifdef __cplusplus
 }
diff --git a/c/src/exec/score/cpu/hppa1.1/cpu.h b/c/src/exec/score/cpu/hppa1.1/cpu.h
index 3df9215730..91dbdc8cad 100644
--- a/c/src/exec/score/cpu/hppa1.1/cpu.h
+++ b/c/src/exec/score/cpu/hppa1.1/cpu.h
@@ -599,6 +599,9 @@ CPU_swap_u32(unsigned32 value)
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 #endif   /* ! ASM */
 
 #ifdef __cplusplus
diff --git a/c/src/exec/score/cpu/i386/i386.h b/c/src/exec/score/cpu/i386/i386.h
index 7f35a68ace..91c5294221 100644
--- a/c/src/exec/score/cpu/i386/i386.h
+++ b/c/src/exec/score/cpu/i386/i386.h
@@ -165,10 +165,26 @@ static inline unsigned int i386_swap_U32(
   unsigned int value
 )
 {
+  unsigned long lout;
+
   asm volatile( "rorw  $8,%%ax;"
                 "rorl  $16,%0;"
-                "rorw  $8,%%ax" : "=a" (value) : "0" (value) );
-  return( value );
+                "rorw  $8,%%ax" : "=a" (lout) : "0" (value) );
+/* this should be better for i486dx and above */
+/*
+    __asm__ volatile( "bswap %0" : "=r"  (lout) : "0"   (lin));
+*/
+  return( lout );
+}
+
+static inline unsigned int i386_swap_U16(
+  unsigned int value
+)
+{
+    unsigned short      sout;
+
+    __asm__ volatile( "rorw $8,%0" : "=r"  (sout) : "0"   (value));
+    return (sout);
 }
 
 /*
@@ -439,6 +455,7 @@ void i386_Install_idt(
 #define get_gs()   i386_get_gs()
  
 #define CPU_swap_u32( _value )  i386_swap_U32( _value )
+#define CPU_swap_u16( _value )  i386_swap_U16( _value )
  
 /* i80x86 I/O instructions */
  
diff --git a/c/src/exec/score/cpu/i960/i960.h b/c/src/exec/score/cpu/i960/i960.h
index 5f67f72fb6..78260a5a57 100644
--- a/c/src/exec/score/cpu/i960/i960.h
+++ b/c/src/exec/score/cpu/i960/i960.h
@@ -255,6 +255,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/c/src/exec/score/cpu/m68k/m68k.h b/c/src/exec/score/cpu/m68k/m68k.h
index 1336b581d1..a6d24562d2 100644
--- a/c/src/exec/score/cpu/m68k/m68k.h
+++ b/c/src/exec/score/cpu/m68k/m68k.h
@@ -243,6 +243,17 @@ static inline unsigned int m68k_swap_u32(
   return( swapped );
 }
 
+static inline unsigned int m68k_swap_u16(
+  unsigned int value
+)
+{
+  unsigned short swapped = value;
+
+  asm volatile( "rorw  #8,%0" : "=d" (swapped) : "0" (swapped) );
+
+  return( swapped );
+}
+
 /* XXX this is only valid for some m68k family members and should be fixed */
 
 #define m68k_enable_caching() \
@@ -252,6 +263,7 @@ static inline unsigned int m68k_swap_u32(
   }
 
 #define CPU_swap_u32( value )  m68k_swap_u32( value )
+#define CPU_swap_u16( value )  m68k_swap_u16( value )
 
 #endif  /* !ASM */
 
diff --git a/c/src/exec/score/cpu/mips64orion/cpu.h b/c/src/exec/score/cpu/mips64orion/cpu.h
index 7868c88ddd..75809b3384 100644
--- a/c/src/exec/score/cpu/mips64orion/cpu.h
+++ b/c/src/exec/score/cpu/mips64orion/cpu.h
@@ -941,6 +941,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 /*
  *  Miscellaneous prototypes 
  *
diff --git a/c/src/exec/score/cpu/no_cpu/cpu.h b/c/src/exec/score/cpu/no_cpu/cpu.h
index 36e5681709..0373e43fc7 100644
--- a/c/src/exec/score/cpu/no_cpu/cpu.h
+++ b/c/src/exec/score/cpu/no_cpu/cpu.h
@@ -859,6 +859,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/c/src/exec/score/cpu/powerpc/cpu.h b/c/src/exec/score/cpu/powerpc/cpu.h
index d2353bacf5..5360b21770 100644
--- a/c/src/exec/score/cpu/powerpc/cpu.h
+++ b/c/src/exec/score/cpu/powerpc/cpu.h
@@ -1091,6 +1091,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/c/src/exec/score/cpu/sh/sh.h b/c/src/exec/score/cpu/sh/sh.h
index 1561732c33..b6491128ed 100644
--- a/c/src/exec/score/cpu/sh/sh.h
+++ b/c/src/exec/score/cpu/sh/sh.h
@@ -134,7 +134,19 @@ static inline unsigned int sh_swap_u32(
   return( swapped );
 }
 
+static inline unsigned int sh_swap_u32(
+  unsigned int value
+)
+{
+  register unsigned int swapped ;
+
+  asm volatile ( "swap.b %1,%0 : "=r" (swapped) : "r"  (value) );
+
+  return( swapped );
+}
+
 #define CPU_swap_u32( value ) sh_swap_u32( value )
+#define CPU_swap_u16( value ) sh_swap_u16( value )
 
 /*
  *  Simple spin delay in microsecond units for device drivers.
diff --git a/c/src/exec/score/cpu/sparc/cpu.h b/c/src/exec/score/cpu/sparc/cpu.h
index 9d96e05838..21b24a0ba7 100644
--- a/c/src/exec/score/cpu/sparc/cpu.h
+++ b/c/src/exec/score/cpu/sparc/cpu.h
@@ -994,6 +994,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 #endif ASM
 
 #ifdef __cplusplus
diff --git a/c/src/exec/score/cpu/unix/cpu.h b/c/src/exec/score/cpu/unix/cpu.h
index 13558267a0..1667438f92 100644
--- a/c/src/exec/score/cpu/unix/cpu.h
+++ b/c/src/exec/score/cpu/unix/cpu.h
@@ -991,6 +991,9 @@ static inline unsigned int CPU_swap_u32(
   return( swapped );
 }
 
+#define CPU_swap_u16( value ) \
+  (((value&0xff) << 8) | ((value >> 8)&0xff))
+
 /*
  *  Special Purpose Routines to hide the use of UNIX system calls.
  */
-- 
cgit v1.2.3