FM / asm

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm

Name	Size	Mode	Actions
adb_iop.h	1188	0644	edit dl rm
amigahw.h	10737	0644	edit dl rm
amigaints.h	3583	0644	edit dl rm
amigayle.h	3271	0644	edit dl rm
amipcmcia.h	2568	0644	edit dl rm
apollohw.h	2410	0644	edit dl rm
asm-offsets.h	35	0644	edit dl rm
asm-prototypes.h	211	0644	edit dl rm
atarihw.h	20919	0644	edit dl rm
atariints.h	5691	0644	edit dl rm
atarikb.h	1434	0644	edit dl rm
atari_joystick.h	457	0644	edit dl rm
atari_stdma.h	514	0644	edit dl rm
atari_stram.h	528	0644	edit dl rm
atomic.h	5016	0644	edit dl rm
bitops.h	12827	0644	edit dl rm
blinken.h	641	0644	edit dl rm
bootinfo.h	783	0644	edit dl rm
bootstd.h	4747	0644	edit dl rm
bug.h	659	0644	edit dl rm
bvme6000hw.h	3529	0644	edit dl rm
cache.h	296	0644	edit dl rm
cacheflush.h	133	0644	edit dl rm
cacheflush_mm.h	7173	0644	edit dl rm
cacheflush_no.h	1884	0644	edit dl rm
checksum.h	3497	0644	edit dl rm
cmpxchg.h	3189	0644	edit dl rm
coldfire.h	1653	0644	edit dl rm
contregs.h	3390	0644	edit dl rm
current.h	580	0644	edit dl rm
delay.h	3504	0644	edit dl rm
div64.h	858	0644	edit dl rm
dma.h	17040	0644	edit dl rm
dsp56k.h	1269	0644	edit dl rm
dvma.h	9903	0644	edit dl rm
elf.h	3145	0644	edit dl rm
entry.h	5902	0644	edit dl rm
export.h	53	0644	edit dl rm
fb.h	921	0644	edit dl rm
fbio.h	10106	0644	edit dl rm
flat.h	333	0644	edit dl rm
floppy.h	5330	0644	edit dl rm
fpu.h	535	0644	edit dl rm
ftrace.h	12	0644	edit dl rm
gpio.h	2294	0644	edit dl rm
hash.h	2115	0644	edit dl rm
hp300hw.h	186	0644	edit dl rm
hwtest.h	467	0644	edit dl rm
ide.h	1708	0644	edit dl rm
idprom.h	725	0644	edit dl rm
intersil.h	1134	0644	edit dl rm
io.h	244	0644	edit dl rm
io_mm.h	13198	0644	edit dl rm
io_no.h	4196	0644	edit dl rm
irq.h	2634	0644	edit dl rm
irqflags.h	1652	0644	edit dl rm
Kbuild	165	0644	edit dl rm
kexec.h	732	0644	edit dl rm
kmap.h	1754	0644	edit dl rm
linkage.h	1583	0644	edit dl rm
m52xxacr.h	3660	0644	edit dl rm
m53xxacr.h	3683	0644	edit dl rm
m53xxsim.h	55262	0644	edit dl rm
m54xxacr.h	4934	0644	edit dl rm
m54xxgpt.h	3750	0644	edit dl rm
m54xxpci.h	6276	0644	edit dl rm
m54xxsim.h	3892	0644	edit dl rm
m520xsim.h	7323	0644	edit dl rm
m523xsim.h	7882	0644	edit dl rm
m525xsim.h	10822	0644	edit dl rm
m527xsim.h	13835	0644	edit dl rm
m528xsim.h	9599	0644	edit dl rm
m5206sim.h	6555	0644	edit dl rm
m5272sim.h	6199	0644	edit dl rm
m5307sim.h	7698	0644	edit dl rm
m5407sim.h	6289	0644	edit dl rm
m5441xsim.h	10294	0644	edit dl rm
machdep.h	1331	0644	edit dl rm
machines.h	3209	0644	edit dl rm
machw.h	588	0644	edit dl rm
macintosh.h	2438	0644	edit dl rm
macints.h	3210	0644	edit dl rm
mac_asc.h	520	0644	edit dl rm
mac_baboon.h	999	0644	edit dl rm
mac_iop.h	5499	0644	edit dl rm
mac_oss.h	1873	0644	edit dl rm
mac_psc.h	7427	0644	edit dl rm
mac_via.h	11718	0644	edit dl rm
math-emu.h	6897	0644	edit dl rm
MC68EZ328.h	38650	0644	edit dl rm
MC68VZ328.h	42006	0644	edit dl rm
MC68328.h	38724	0644	edit dl rm
mc146818rtc.h	598	0644	edit dl rm
mcf8390.h	3844	0644	edit dl rm
mcfclk.h	961	0644	edit dl rm
mcfdma.h	6662	0644	edit dl rm
mcfgpio.h	8269	0644	edit dl rm
mcfintc.h	3161	0644	edit dl rm
mcfmmu.h	3761	0644	edit dl rm
mcfpit.h	2278	0644	edit dl rm
mcfqspi.h	1466	0644	edit dl rm
mcfsim.h	1531	0644	edit dl rm
mcfslt.h	1240	0644	edit dl rm
mcftimer.h	2357	0644	edit dl rm
mcfuart.h	7076	0644	edit dl rm
mcfwdebug.h	5106	0644	edit dl rm
mcf_pgalloc.h	2000	0644	edit dl rm
mcf_pgtable.h	8312	0644	edit dl rm
mmu.h	243	0644	edit dl rm
mmu_context.h	7207	0644	edit dl rm
module.h	847	0644	edit dl rm
module.lds.h	91	0644	edit dl rm
motorola_pgalloc.h	2146	0644	edit dl rm
motorola_pgtable.h	7610	0644	edit dl rm
movs.h	1472	0644	edit dl rm
mvme16xhw.h	2216	0644	edit dl rm
mvme147hw.h	2938	0644	edit dl rm
natfeat.h	533	0644	edit dl rm
nettel.h	3023	0644	edit dl rm
nubus.h	1262	0644	edit dl rm
openprom.h	8173	0644	edit dl rm
oplib.h	9768	0644	edit dl rm
page.h	1728	0644	edit dl rm
page_mm.h	3399	0644	edit dl rm
page_no.h	1322	0644	edit dl rm
page_offset.h	256	0644	edit dl rm
parport.h	837	0644	edit dl rm
pci.h	258	0644	edit dl rm
pgalloc.h	444	0644	edit dl rm
pgtable.h	127	0644	edit dl rm
pgtable_mm.h	4931	0644	edit dl rm
pgtable_no.h	1438	0644	edit dl rm
processor.h	4158	0644	edit dl rm
ptrace.h	643	0644	edit dl rm
q40ints.h	749	0644	edit dl rm
q40_master.h	2357	0644	edit dl rm
quicc_simple.h	1830	0644	edit dl rm
raw_io.h	12003	0644	edit dl rm
serial.h	1165	0644	edit dl rm
setup.h	9467	0644	edit dl rm
signal.h	1377	0644	edit dl rm
smp.h	32	0644	edit dl rm
string.h	1717	0644	edit dl rm
sun3-head.h	353	0644	edit dl rm
sun3ints.h	989	0644	edit dl rm
sun3mmu.h	5025	0644	edit dl rm
sun3x.h	868	0644	edit dl rm
sun3xflop.h	5757	0644	edit dl rm
sun3xprom.h	1343	0644	edit dl rm
sun3_pgalloc.h	1267	0644	edit dl rm
sun3_pgtable.h	6583	0644	edit dl rm
switch_to.h	1549	0644	edit dl rm
syscall.h	251	0644	edit dl rm
thread_info.h	2237	0644	edit dl rm
timex.h	974	0644	edit dl rm
tlb.h	135	0644	edit dl rm
tlbflush.h	5989	0644	edit dl rm
traps.h	8615	0644	edit dl rm
uaccess.h	12563	0644	edit dl rm
ucontext.h	570	0644	edit dl rm
unistd.h	993	0644	edit dl rm
user.h	3874	0644	edit dl rm
vga.h	902	0644	edit dl rm
virtconvert.h	834	0644	edit dl rm
vmalloc.h	90	0644	edit dl rm
zorro.h	1222	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/math-emu.h (6897B)

/* SPDX-License-Identifier: GPL-2.0 */
#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, ...) ({			\
	if (fp_debugprint & (1 << (bit)))		\
		pr_info(fmt, ##__VA_ARGS__);		\
})
#else
#define dprint(bit, fmt, ...)	no_printk(fmt, ##__VA_ARGS__)
#endif

#define uprint(str) ({					\
	static int __count = 3;				\
							\
	if (__count > 0) {				\
		pr_err("You just hit an unimplemented "	\
		       "fpu instruction (%s)\n", str);	\
		pr_err("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_OFF_D0)
#define FPS_D1		(PT_OFF_D1)
#define FPS_D2		(PT_OFF_D2)
#define FPS_A0		(PT_OFF_A0)
#define FPS_A1		(PT_OFF_A1)
#define FPS_A2		(PT_OFF_A2)
#define FPS_SR		(PT_OFF_SR)
#define FPS_PC		(PT_OFF_PC)
#define FPS_EA		(PT_OFF_PC+6)
#define FPS_PC2		(PT_OFF_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 */

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