summaryrefslogtreecommitdiff
path: root/include/asm-m68k/math-emu.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-m68k/math-emu.h')
-rw-r--r--include/asm-m68k/math-emu.h315
1 files changed, 0 insertions, 315 deletions
diff --git a/include/asm-m68k/math-emu.h b/include/asm-m68k/math-emu.h
deleted file mode 100644
index ddfab96..0000000
--- a/include/asm-m68k/math-emu.h
+++ /dev/null
@@ -1,315 +0,0 @@
-#ifndef _ASM_M68K_SETUP_H
-#define _ASM_M68K_SETUP_H
-
-#include <asm/setup.h>
-#include <linux/linkage.h>
-
-/* Status Register bits */
-
-/* accrued exception bits */
-#define FPSR_AEXC_INEX 3
-#define FPSR_AEXC_DZ 4
-#define FPSR_AEXC_UNFL 5
-#define FPSR_AEXC_OVFL 6
-#define FPSR_AEXC_IOP 7
-
-/* exception status bits */
-#define FPSR_EXC_INEX1 8
-#define FPSR_EXC_INEX2 9
-#define FPSR_EXC_DZ 10
-#define FPSR_EXC_UNFL 11
-#define FPSR_EXC_OVFL 12
-#define FPSR_EXC_OPERR 13
-#define FPSR_EXC_SNAN 14
-#define FPSR_EXC_BSUN 15
-
-/* quotient byte, assumes big-endian, of course */
-#define FPSR_QUOTIENT(fpsr) (*((signed char *) &(fpsr) + 1))
-
-/* condition code bits */
-#define FPSR_CC_NAN 24
-#define FPSR_CC_INF 25
-#define FPSR_CC_Z 26
-#define FPSR_CC_NEG 27
-
-
-/* Control register bits */
-
-/* rounding mode */
-#define FPCR_ROUND_RN 0 /* round to nearest/even */
-#define FPCR_ROUND_RZ 1 /* round to zero */
-#define FPCR_ROUND_RM 2 /* minus infinity */
-#define FPCR_ROUND_RP 3 /* plus infinity */
-
-/* rounding precision */
-#define FPCR_PRECISION_X 0 /* long double */
-#define FPCR_PRECISION_S 1 /* double */
-#define FPCR_PRECISION_D 2 /* float */
-
-
-/* Flags to select the debugging output */
-#define PDECODE 0
-#define PEXECUTE 1
-#define PCONV 2
-#define PNORM 3
-#define PREGISTER 4
-#define PINSTR 5
-#define PUNIMPL 6
-#define PMOVEM 7
-
-#define PMDECODE (1<<PDECODE)
-#define PMEXECUTE (1<<PEXECUTE)
-#define PMCONV (1<<PCONV)
-#define PMNORM (1<<PNORM)
-#define PMREGISTER (1<<PREGISTER)
-#define PMINSTR (1<<PINSTR)
-#define PMUNIMPL (1<<PUNIMPL)
-#define PMMOVEM (1<<PMOVEM)
-
-#ifndef __ASSEMBLY__
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-union fp_mant64 {
- unsigned long long m64;
- unsigned long m32[2];
-};
-
-union fp_mant128 {
- unsigned long long m64[2];
- unsigned long m32[4];
-};
-
-/* internal representation of extended fp numbers */
-struct fp_ext {
- unsigned char lowmant;
- unsigned char sign;
- unsigned short exp;
- union fp_mant64 mant;
-};
-
-/* C representation of FPU registers */
-/* NOTE: if you change this, you have to change the assembler offsets
- below and the size in <asm/fpu.h>, too */
-struct fp_data {
- struct fp_ext fpreg[8];
- unsigned int fpcr;
- unsigned int fpsr;
- unsigned int fpiar;
- unsigned short prec;
- unsigned short rnd;
- struct fp_ext temp[2];
-};
-
-#ifdef FPU_EMU_DEBUG
-extern unsigned int fp_debugprint;
-
-#define dprint(bit, fmt, args...) ({ \
- if (fp_debugprint & (1 << (bit))) \
- printk(fmt, ## args); \
-})
-#else
-#define dprint(bit, fmt, args...)
-#endif
-
-#define uprint(str) ({ \
- static int __count = 3; \
- \
- if (__count > 0) { \
- printk("You just hit an unimplemented " \
- "fpu instruction (%s)\n", str); \
- printk("Please report this to ....\n"); \
- __count--; \
- } \
-})
-
-#define FPDATA ((struct fp_data *)current->thread.fp)
-
-#else /* __ASSEMBLY__ */
-
-#define FPDATA %a2
-
-/* offsets from the base register to the floating point data in the task struct */
-#define FPD_FPREG (TASK_THREAD+THREAD_FPREG+0)
-#define FPD_FPCR (TASK_THREAD+THREAD_FPREG+96)
-#define FPD_FPSR (TASK_THREAD+THREAD_FPREG+100)
-#define FPD_FPIAR (TASK_THREAD+THREAD_FPREG+104)
-#define FPD_PREC (TASK_THREAD+THREAD_FPREG+108)
-#define FPD_RND (TASK_THREAD+THREAD_FPREG+110)
-#define FPD_TEMPFP1 (TASK_THREAD+THREAD_FPREG+112)
-#define FPD_TEMPFP2 (TASK_THREAD+THREAD_FPREG+124)
-#define FPD_SIZEOF (TASK_THREAD+THREAD_FPREG+136)
-
-/* offsets on the stack to access saved registers,
- * these are only used during instruction decoding
- * where we always know how deep we're on the stack.
- */
-#define FPS_DO (PT_D0)
-#define FPS_D1 (PT_D1)
-#define FPS_D2 (PT_D2)
-#define FPS_A0 (PT_A0)
-#define FPS_A1 (PT_A1)
-#define FPS_A2 (PT_A2)
-#define FPS_SR (PT_SR)
-#define FPS_PC (PT_PC)
-#define FPS_EA (PT_PC+6)
-#define FPS_PC2 (PT_PC+10)
-
-.macro fp_get_fp_reg
- lea (FPD_FPREG,FPDATA,%d0.w*4),%a0
- lea (%a0,%d0.w*8),%a0
-.endm
-
-/* Macros used to get/put the current program counter.
- * 020/030 use a different stack frame then 040/060, for the
- * 040/060 the return pc points already to the next location,
- * so this only needs to be modified for jump instructions.
- */
-.macro fp_get_pc dest
- move.l (FPS_PC+4,%sp),\dest
-.endm
-
-.macro fp_put_pc src,jump=0
- move.l \src,(FPS_PC+4,%sp)
-.endm
-
-.macro fp_get_instr_data f,s,dest,label
- getuser \f,%sp@(FPS_PC+4)@(0),\dest,\label,%sp@(FPS_PC+4)
- addq.l #\s,%sp@(FPS_PC+4)
-.endm
-
-.macro fp_get_instr_word dest,label,addr
- fp_get_instr_data w,2,\dest,\label,\addr
-.endm
-
-.macro fp_get_instr_long dest,label,addr
- fp_get_instr_data l,4,\dest,\label,\addr
-.endm
-
-/* These macros are used to read from/write to user space
- * on error we jump to the fixup section, load the fault
- * address into %a0 and jump to the exit.
- * (derived from <asm/uaccess.h>)
- */
-.macro getuser size,src,dest,label,addr
-| printf ,"[\size<%08x]",1,\addr
-.Lu1\@: moves\size \src,\dest
-
- .section .fixup,"ax"
- .even
-.Lu2\@: move.l \addr,%a0
- jra \label
- .previous
-
- .section __ex_table,"a"
- .align 4
- .long .Lu1\@,.Lu2\@
- .previous
-.endm
-
-.macro putuser size,src,dest,label,addr
-| printf ,"[\size>%08x]",1,\addr
-.Lu1\@: moves\size \src,\dest
-.Lu2\@:
-
- .section .fixup,"ax"
- .even
-.Lu3\@: move.l \addr,%a0
- jra \label
- .previous
-
- .section __ex_table,"a"
- .align 4
- .long .Lu1\@,.Lu3\@
- .long .Lu2\@,.Lu3\@
- .previous
-.endm
-
-/* work around binutils idiocy */
-old_gas=-1
-.irp gas_ident.x .x
-old_gas=old_gas+1
-.endr
-.if !old_gas
-.irp m b,w,l
-.macro getuser.\m src,dest,label,addr
- getuser .\m,\src,\dest,\label,\addr
-.endm
-.macro putuser.\m src,dest,label,addr
- putuser .\m,\src,\dest,\label,\addr
-.endm
-.endr
-.endif
-
-.macro movestack nr,arg1,arg2,arg3,arg4,arg5
- .if \nr
- movestack (\nr-1),\arg2,\arg3,\arg4,\arg5
- move.l \arg1,-(%sp)
- .endif
-.endm
-
-.macro printf bit=-1,string,nr=0,arg1,arg2,arg3,arg4,arg5
-#ifdef FPU_EMU_DEBUG
- .data
-.Lpdata\@:
- .string "\string"
- .previous
-
- movem.l %d0/%d1/%a0/%a1,-(%sp)
- .if \bit+1
-#if 0
- moveq #\bit,%d0
- andw #7,%d0
- btst %d0,fp_debugprint+((31-\bit)/8)
-#else
- btst #\bit,fp_debugprint+((31-\bit)/8)
-#endif
- jeq .Lpskip\@
- .endif
- movestack \nr,\arg1,\arg2,\arg3,\arg4,\arg5
- pea .Lpdata\@
- jsr printk
- lea ((\nr+1)*4,%sp),%sp
-.Lpskip\@:
- movem.l (%sp)+,%d0/%d1/%a0/%a1
-#endif
-.endm
-
-.macro printx bit,fp
-#ifdef FPU_EMU_DEBUG
- movem.l %d0/%a0,-(%sp)
- lea \fp,%a0
-#if 0
- moveq #'+',%d0
- tst.w (%a0)
- jeq .Lx1\@
- moveq #'-',%d0
-.Lx1\@: printf \bit," %c",1,%d0
- move.l (4,%a0),%d0
- bclr #31,%d0
- jne .Lx2\@
- printf \bit,"0."
- jra .Lx3\@
-.Lx2\@: printf \bit,"1."
-.Lx3\@: printf \bit,"%08x%08x",2,%d0,%a0@(8)
- move.w (2,%a0),%d0
- ext.l %d0
- printf \bit,"E%04x",1,%d0
-#else
- printf \bit," %08x%08x%08x",3,%a0@,%a0@(4),%a0@(8)
-#endif
- movem.l (%sp)+,%d0/%a0
-#endif
-.endm
-
-.macro debug instr,args
-#ifdef FPU_EMU_DEBUG
- \instr \args
-#endif
-.endm
-
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_M68K_SETUP_H */