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linux-vax-kern-commit
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From: Andy P. <at...@us...> - 2002-04-10 18:39:35
|
Update of /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe
In directory usw-pr-cvs1:/tmp/cvs-serv24336/arm/nwfpe
Modified Files:
Makefile double_cpdo.c entry.S entry26.S extended_cpdo.c
fpa11.c fpa11.h fpa11.inl fpa11_cpdo.c fpa11_cpdt.c
fpa11_cprt.c fpmodule.c fpmodule.inl fpopcode.c fpopcode.h
single_cpdo.c
Removed Files:
config.h
Log Message:
synch 2.4.15 commit 32
Index: Makefile
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/Makefile,v
retrieving revision 1.1.1.2
retrieving revision 1.2
diff -u -r1.1.1.2 -r1.2
--- Makefile 25 Feb 2001 23:15:21 -0000 1.1.1.2
+++ Makefile 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,7 +1,7 @@
#
# linux/arch/arm/nwfpe/Makefile
#
-# Copyright (C) 1998, 1999 Philip Blundell
+# Copyright (C) 1998, 1999, 2001 Philip Blundell
#
USE_STANDARD_AS_RULE := true
@@ -14,7 +14,7 @@
list-multi := nwfpe.o
-obj-$(CONFIG_NWFPE) += nwfpe.o
+obj-$(CONFIG_FPE_NWFPE) += nwfpe.o
nwfpe-objs := fpa11.o fpa11_cpdo.o fpa11_cpdt.o fpa11_cprt.o \
fpmodule.o fpopcode.o softfloat.o \
Index: double_cpdo.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/double_cpdo.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- double_cpdo.c 14 Jan 2001 19:47:07 -0000 1.1.1.1
+++ double_cpdo.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -23,10 +23,6 @@
#include "fpopcode.h"
#include "fpa11.h"
-extern FPA11 *fpa11;
-
-float64 getDoubleConstant(unsigned int);
-
float64 float64_exp(float64 Fm);
float64 float64_ln(float64 Fm);
float64 float64_sin(float64 rFm);
@@ -41,6 +37,7 @@
unsigned int DoubleCPDO(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
float64 rFm, rFn;
unsigned int Fd, Fm, Fn, nRc = 1;
Index: entry.S
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/entry.S,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- entry.S 14 Jan 2001 19:47:07 -0000 1.1.1.1
+++ entry.S 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,7 +1,7 @@
/*
NetWinder Floating Point Emulator
- (c) Corel Computer Corporation, 1998
- (c) Philip Blundell 1998-1999
+ (c) Rebel.COM, 1998
+ (c) 1998, 1999 Philip Blundell
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -77,16 +77,13 @@
emulation. This would reduce load/store overhead at the expense
of stealing two regs from the register allocator. Not sure if
it's worth it. */
- ldr r4, =userRegisters
- str sp, [r4] @ save pointer to user regs
- ldr r4, =fpa11
- str r10, [r4] @ store pointer to our state
+ str sp, [r10] @ Store the user registers pointer in the fpa11 structure.
mov r4, sp @ use r4 for local pointer
mov r10, lr @ save the failure-return addresses
ldr r5, [r4, #60] @ get contents of PC;
sub r8, r5, #4
-.Lx2: ldrt r0, [r8], #0 @ get actual instruction into r0
+.Lx2: ldrt r0, [r8] @ get actual instruction into r0
emulate:
bl EmulateAll @ emulate the instruction
cmp r0, #0 @ was emulation successful
@@ -115,15 +112,17 @@
mov r0, r6 @ prepare for EmulateAll()
b emulate @ if r0 != 0, goto EmulateAll
- @ We need to be prepared for the instruction at .Lx1 or .Lx2
- @ to fault.
+ @ We need to be prepared for the instructions at .Lx1 and .Lx2
+ @ to fault. Emit the appropriate exception gunk to fix things up.
+ @ ??? For some reason, faults can happen at .Lx2 even with a
+ @ plain LDR instruction. Weird, but it seems harmless.
.section .fixup,"ax"
- .align
-.Lfix: mov pc, r9
+ .align 2
+.Lfix: mov pc, r9 @ let the user eat segfaults
.previous
.section __ex_table,"a"
- .align 3
- .long .Lx2, .Lfix
+ .align 3
.long .Lx1, .Lfix
+ .long .Lx2, .Lfix
.previous
Index: entry26.S
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/entry26.S,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- entry26.S 14 Jan 2001 19:47:08 -0000 1.1.1.1
+++ entry26.S 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Corel Computer Corporation, 1998
+ (c) Rebel.COM, 1998
(c) Philip Blundell 1998-1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -20,7 +20,7 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include "../lib/constants.h"
+#include <asm/constants.h>
/* This is the kernel's entry point into the floating point emulator.
It is called from the kernel with code similar to this:
@@ -84,7 +84,7 @@
beq fpundefinstr @ no, return failure
next:
- ldrt r6, [r5], #4 @ get the next instruction and
+.Lx1: ldrt r6, [r5], #4 @ get the next instruction and
@ increment PC
and r2, r6, #0x0F000000 @ test for FP insns
@@ -110,3 +110,13 @@
adr lr, 1b
orr lr, lr, #3
b EmulateAll @ if r0 != 0, goto EmulateAll
+
+.Lret: b ret_from_exception @ let the user eat segfaults
+
+ @ We need to be prepared for the instruction at .Lx1 to fault.
+ @ Emit the appropriate exception gunk to fix things up.
+ .section __ex_table,"a"
+ .align 3
+ .long .Lx1
+ ldr lr, [lr, $(.Lret - .Lx1)/4]
+ .previous
Index: extended_cpdo.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/extended_cpdo.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- extended_cpdo.c 14 Jan 2001 19:47:09 -0000 1.1.1.1
+++ extended_cpdo.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -23,8 +23,6 @@
#include "fpopcode.h"
#include "fpa11.h"
-floatx80 getExtendedConstant(unsigned int);
-
floatx80 floatx80_exp(floatx80 Fm);
floatx80 floatx80_ln(floatx80 Fm);
floatx80 floatx80_sin(floatx80 rFm);
@@ -39,6 +37,7 @@
unsigned int ExtendedCPDO(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
floatx80 rFm, rFn;
unsigned int Fd, Fm, Fn, nRc = 1;
Index: fpa11.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11.c 14 Jan 2001 19:47:10 -0000 1.1.1.1
+++ fpa11.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -32,22 +32,20 @@
unsigned int EmulateCPDT(const unsigned int);
unsigned int EmulateCPRT(const unsigned int);
-/* Emulator registers */
-FPA11 *fpa11;
-
/* Reset the FPA11 chip. Called to initialize and reset the emulator. */
void resetFPA11(void)
{
int i;
-
+ FPA11 *fpa11 = GET_FPA11();
+
/* initialize the register type array */
for (i=0;i<=7;i++)
{
fpa11->fType[i] = typeNone;
}
- /* FPSR: set system id to FP_EMULATOR, clear all other bits */
- fpa11->fpsr = FP_EMULATOR;
+ /* FPSR: set system id to FP_EMULATOR, set AC, clear all other bits */
+ fpa11->fpsr = FP_EMULATOR | BIT_AC;
/* FPCR: set SB, AB and DA bits, clear all others */
#if MAINTAIN_FPCR
@@ -130,8 +128,10 @@
{
unsigned int nRc = 0;
unsigned long flags;
-
+ FPA11 *fpa11;
save_flags(flags); sti();
+
+ fpa11 = GET_FPA11();
if (fpa11->initflag == 0) /* good place for __builtin_expect */
{
Index: fpa11.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11.h,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11.h 14 Jan 2001 19:47:10 -0000 1.1.1.1
+++ fpa11.h 10 Apr 2002 13:51:23 -0000 1.2
@@ -26,6 +26,9 @@
#include "fpsr.h" /* FP control and status register definitions */
#include "softfloat.h"
+/* Need task_struct */
+#include <linux/sched.h>
+
#define typeNone 0x00
#define typeSingle 0x01
#define typeDouble 0x02
@@ -39,6 +42,7 @@
/* FPA11 device model */
typedef struct tagFPA11 {
+ unsigned int *userRegisters;
FPREG fpreg[8]; /* 8 floating point registers */
FPSR fpsr; /* floating point status register */
FPCR fpcr; /* floating point control register */
@@ -56,6 +60,7 @@
extern void SetRoundingMode(const unsigned int);
extern void SetRoundingPrecision(const unsigned int);
-extern FPA11 *fpa11;
+#define GET_FPA11() ((FPA11 *)(¤t->thread.fpstate))
+#define GET_USERREG() (GET_FPA11()->userRegisters)
#endif
Index: fpa11.inl
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11.inl,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11.inl 14 Jan 2001 19:47:10 -0000 1.1.1.1
+++ fpa11.inl 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Corel Computer Corporation, 1998
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -24,11 +24,13 @@
/* Read and write floating point status register */
extern __inline__ unsigned int readFPSR(void)
{
+ FPA11 *fpa11 = GET_FPA11();
return(fpa11->fpsr);
}
extern __inline__ void writeFPSR(FPSR reg)
{
+ FPA11 *fpa11 = GET_FPA11();
/* the sysid byte in the status register is readonly */
fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID);
}
@@ -36,12 +38,14 @@
/* Read and write floating point control register */
extern __inline__ FPCR readFPCR(void)
{
+ FPA11 *fpa11 = GET_FPA11();
/* clear SB, AB and DA bits before returning FPCR */
return(fpa11->fpcr & ~MASK_RFC);
}
extern __inline__ void writeFPCR(FPCR reg)
{
+ FPA11 *fpa11 = GET_FPA11();
fpa11->fpcr &= ~MASK_WFC; /* clear SB, AB and DA bits */
fpa11->fpcr |= (reg & MASK_WFC); /* write SB, AB and DA bits */
}
Index: fpa11_cpdo.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11_cpdo.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11_cpdo.c 14 Jan 2001 19:47:11 -0000 1.1.1.1
+++ fpa11_cpdo.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -28,6 +28,7 @@
unsigned int EmulateCPDO(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
unsigned int Fd, nType, nDest, nRc = 1;
//printk("EmulateCPDO(0x%08x)\n",opcode);
Index: fpa11_cpdt.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11_cpdt.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11_cpdt.c 14 Jan 2001 19:47:12 -0000 1.1.1.1
+++ fpa11_cpdt.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -28,16 +28,18 @@
#include <asm/uaccess.h>
-extern __inline__
+static inline
void loadSingle(const unsigned int Fn,const unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
fpa11->fType[Fn] = typeSingle;
get_user(fpa11->fpreg[Fn].fSingle, pMem);
}
-extern __inline__
+static inline
void loadDouble(const unsigned int Fn,const unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
unsigned int *p;
p = (unsigned int*)&fpa11->fpreg[Fn].fDouble;
fpa11->fType[Fn] = typeDouble;
@@ -45,9 +47,10 @@
get_user(p[1], &pMem[0]); /* sign & exponent */
}
-extern __inline__
+static inline
void loadExtended(const unsigned int Fn,const unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
unsigned int *p;
p = (unsigned int*)&fpa11->fpreg[Fn].fExtended;
fpa11->fType[Fn] = typeExtended;
@@ -56,9 +59,10 @@
get_user(p[2], &pMem[1]); /* ms bits */
}
-extern __inline__
+static inline
void loadMultiple(const unsigned int Fn,const unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
register unsigned int *p;
unsigned long x;
@@ -87,9 +91,10 @@
}
}
-extern __inline__
+static inline
void storeSingle(const unsigned int Fn,unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
float32 val;
register unsigned int *p = (unsigned int*)&val;
@@ -109,9 +114,10 @@
put_user(p[0], pMem);
}
-extern __inline__
+static inline
void storeDouble(const unsigned int Fn,unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
float64 val;
register unsigned int *p = (unsigned int*)&val;
@@ -131,9 +137,10 @@
put_user(p[0], &pMem[1]); /* lsw */
}
-extern __inline__
+static inline
void storeExtended(const unsigned int Fn,unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
floatx80 val;
register unsigned int *p = (unsigned int*)&val;
@@ -155,9 +162,10 @@
put_user(p[2], &pMem[1]); /* msw */
}
-extern __inline__
+static inline
void storeMultiple(const unsigned int Fn,unsigned int *pMem)
{
+ FPA11 *fpa11 = GET_FPA11();
register unsigned int nType, *p;
p = (unsigned int*)&(fpa11->fpreg[Fn]);
Index: fpa11_cprt.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpa11_cprt.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpa11_cprt.c 14 Jan 2001 19:47:13 -0000 1.1.1.1
+++ fpa11_cprt.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
(c) Philip Blundell, 1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -78,6 +78,8 @@
unsigned int PerformFLT(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
+
unsigned int nRc = 1;
SetRoundingMode(opcode);
SetRoundingPrecision(opcode);
@@ -116,6 +118,7 @@
unsigned int PerformFIX(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
unsigned int nRc = 1;
unsigned int Fn = getFm(opcode);
@@ -182,6 +185,7 @@
static unsigned int PerformComparison(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
unsigned int Fn, Fm;
floatx80 rFn, rFm;
int e_flag = opcode & 0x400000; /* 1 if CxFE */
Index: fpmodule.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpmodule.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpmodule.c 14 Jan 2001 19:47:13 -0000 1.1.1.1
+++ fpmodule.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -39,9 +39,6 @@
#include "fpa11.h"
#include "fpa11.inl"
-/* external data */
-extern FPA11 *fpa11;
-
/* kernel symbols required for signal handling */
typedef struct task_struct* PTASK;
@@ -55,6 +52,8 @@
#else
#define fp_send_sig send_sig
#define kern_fp_enter fp_enter
+
+extern char fpe_type[];
#endif
/* kernel function prototypes required */
@@ -69,27 +68,45 @@
/* forward declarations */
extern void nwfpe_enter(void);
-/* Address of user registers on the kernel stack. */
-unsigned int *userRegisters;
+#ifdef MODULE
+/*
+ * Return 0 if we can be unloaded. This can only happen if
+ * kern_fp_enter is still pointing at nwfpe_enter
+ */
+static int fpe_unload(void)
+{
+ return (kern_fp_enter == nwfpe_enter) ? 0 : 1;
+}
+#endif
-int __init fpe_init(void)
+static int __init fpe_init(void)
{
- if (sizeof(FPA11) > sizeof(union fp_state))
+ if (sizeof(FPA11) > sizeof(union fp_state)) {
printk(KERN_ERR "nwfpe: bad structure size\n");
- else {
- /* Display title, version and copyright information. */
- printk(KERN_WARNING "NetWinder Floating Point Emulator V0.95 "
- "(c) 1998-1999 Rebel.com\n");
-
- /* Save pointer to the old FP handler and then patch ourselves in */
- orig_fp_enter = kern_fp_enter;
- kern_fp_enter = nwfpe_enter;
+ return -EINVAL;
}
+#ifdef MODULE
+ if (!mod_member_present(&__this_module, can_unload))
+ return -EINVAL;
+ __this_module.can_unload = fpe_unload;
+#else
+ if (fpe_type[0] && strcmp(fpe_type, "nwfpe"))
+ return 0;
+#endif
+
+ /* Display title, version and copyright information. */
+ printk(KERN_WARNING "NetWinder Floating Point Emulator V0.95 "
+ "(c) 1998-1999 Rebel.com\n");
+
+ /* Save pointer to the old FP handler and then patch ourselves in */
+ orig_fp_enter = kern_fp_enter;
+ kern_fp_enter = nwfpe_enter;
+
return 0;
}
-void __exit fpe_exit(void)
+static void __exit fpe_exit(void)
{
/* Restore the values we saved earlier. */
kern_fp_enter = orig_fp_enter;
@@ -122,7 +139,7 @@
#ifdef CONFIG_DEBUG_USER
printk(KERN_DEBUG "NWFPE: %s[%d] takes exception %08x at %p from %08x\n",
current->comm, current->pid, flags,
- __builtin_return_address(0), userRegisters[15]);
+ __builtin_return_address(0), GET_USERREG()[15]);
#endif
/* Keep SoftFloat exception flags up to date. */
Index: fpmodule.inl
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpmodule.inl,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpmodule.inl 14 Jan 2001 19:47:14 -0000 1.1.1.1
+++ fpmodule.inl 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
- NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ NetWinder Floating Point Emulator
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -19,9 +19,6 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* Address of user registers on the kernel stack. */
-extern unsigned int *userRegisters;
-
extern __inline__
unsigned int readRegister(const unsigned int nReg)
{
@@ -32,6 +29,7 @@
for this in this routine. LDF/STF instructions with Rn = PC
depend on the PC being correct, as they use PC+8 in their
address calculations. */
+ unsigned int *userRegisters = GET_USERREG();
unsigned int val = userRegisters[nReg];
if (REG_PC == nReg) val -= 4;
return val;
@@ -40,6 +38,7 @@
extern __inline__
void writeRegister(const unsigned int nReg, const unsigned int val)
{
+ unsigned int *userRegisters = GET_USERREG();
userRegisters[nReg] = val;
}
@@ -68,6 +67,7 @@
extern __inline__
void writeConditionCodes(const unsigned int val)
{
+ unsigned int *userRegisters = GET_USERREG();
unsigned int rval;
/*
* Operate directly on userRegisters since
Index: fpopcode.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpopcode.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpopcode.c 14 Jan 2001 19:47:15 -0000 1.1.1.1
+++ fpopcode.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -26,7 +26,7 @@
#include "fpmodule.h"
#include "fpmodule.inl"
-static floatx80 floatx80Constant[] = {
+const floatx80 floatx80Constant[] = {
{ 0x0000, 0x0000000000000000ULL}, /* extended 0.0 */
{ 0x3fff, 0x8000000000000000ULL}, /* extended 1.0 */
{ 0x4000, 0x8000000000000000ULL}, /* extended 2.0 */
@@ -37,7 +37,7 @@
{ 0x4002, 0xa000000000000000ULL} /* extended 10.0 */
};
-static float64 float64Constant[] = {
+const float64 float64Constant[] = {
0x0000000000000000ULL, /* double 0.0 */
0x3ff0000000000000ULL, /* double 1.0 */
0x4000000000000000ULL, /* double 2.0 */
@@ -48,7 +48,7 @@
0x4024000000000000ULL /* double 10.0 */
};
-static float32 float32Constant[] = {
+const float32 float32Constant[] = {
0x00000000, /* single 0.0 */
0x3f800000, /* single 1.0 */
0x40000000, /* single 2.0 */
@@ -59,21 +59,6 @@
0x41200000 /* single 10.0 */
};
-floatx80 getExtendedConstant(const unsigned int nIndex)
-{
- return floatx80Constant[nIndex];
-}
-
-float64 getDoubleConstant(const unsigned int nIndex)
-{
- return float64Constant[nIndex];
-}
-
-float32 getSingleConstant(const unsigned int nIndex)
-{
- return float32Constant[nIndex];
-}
-
unsigned int getTransferLength(const unsigned int opcode)
{
unsigned int nRc;
@@ -135,10 +120,10 @@
return(nRc);
}
-/* contition code lookup table
+/* condition code lookup table
index into the table is test code: EQ, NE, ... LT, GT, AL, NV
bit position in short is condition code: NZCV */
-unsigned short aCC[16] = {
+static const unsigned short aCC[16] = {
0xF0F0, // EQ == Z set
0x0F0F, // NE
0xCCCC, // CS == C set
Index: fpopcode.h
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/fpopcode.h,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- fpopcode.h 14 Jan 2001 19:47:16 -0000 1.1.1.1
+++ fpopcode.h 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -366,11 +366,25 @@
/* Get the rounding mode from the opcode. */
#define getRoundingMode(opcode) ((opcode & MASK_ROUNDING_MODE) >> 5)
-float32 getSingleConstant(const unsigned int nIndex);
-float64 getDoubleConstant(const unsigned int nIndex);
-floatx80 getExtendedConstant(const unsigned int nIndex);
+static inline const floatx80 getExtendedConstant(const unsigned int nIndex)
+{
+ extern const floatx80 floatx80Constant[];
+ return floatx80Constant[nIndex];
+}
+
+static inline const float64 getDoubleConstant(const unsigned int nIndex)
+{
+ extern const float64 float64Constant[];
+ return float64Constant[nIndex];
+}
+
+static inline const float32 getSingleConstant(const unsigned int nIndex)
+{
+ extern const float32 float32Constant[];
+ return float32Constant[nIndex];
+}
-unsigned int getRegisterCount(const unsigned int opcode);
-unsigned int getDestinationSize(const unsigned int opcode);
+extern unsigned int getRegisterCount(const unsigned int opcode);
+extern unsigned int getDestinationSize(const unsigned int opcode);
#endif
Index: single_cpdo.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/arm/nwfpe/single_cpdo.c,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -r1.1.1.1 -r1.2
--- single_cpdo.c 14 Jan 2001 19:47:18 -0000 1.1.1.1
+++ single_cpdo.c 10 Apr 2002 13:51:23 -0000 1.2
@@ -1,6 +1,6 @@
/*
NetWinder Floating Point Emulator
- (c) Rebel.com, 1998-1999
+ (c) Rebel.COM, 1998,1999
Direct questions, comments to Scott Bambrough <sc...@ne...>
@@ -23,8 +23,6 @@
#include "fpopcode.h"
#include "fpa11.h"
-float32 getSingleConstant(unsigned int);
-
float32 float32_exp(float32 Fm);
float32 float32_ln(float32 Fm);
float32 float32_sin(float32 rFm);
@@ -39,6 +37,7 @@
unsigned int SingleCPDO(const unsigned int opcode)
{
+ FPA11 *fpa11 = GET_FPA11();
float32 rFm, rFn;
unsigned int Fd, Fm, Fn, nRc = 1;
--- config.h DELETED ---
|
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