1 files changed, 131 insertions, 0 deletions
diff --git a/arch/sh/lib64/sdivsi3.S b/arch/sh/lib64/sdivsi3.S
new file mode 100644
index 000000000000..6a800c6a4904
--- /dev/null
+++ b/arch/sh/lib64/sdivsi3.S
@@ -0,0 +1,131 @@
+        .global __sdivsi3
+        .section        .text..SHmedia32,"ax"
+        .align  2
+        /* inputs: r4,r5 */
+        /* clobbered: r1,r18,r19,r20,r21,r25,tr0 */
+        /* result in r0 */
+__sdivsi3:
+        ptb __div_table,tr0
+        nsb r5, r1
+        shlld r5, r1, r25    /* normalize; [-2 ..1, 1..2) in s2.62 */
+        shari r25, 58, r21   /* extract 5(6) bit index (s2.4 with hole -1..1) */
+        /* bubble */
+        gettr tr0,r20
+        ldx.ub r20, r21, r19 /* u0.8 */
+        shari r25, 32, r25   /* normalize to s2.30 */
+        shlli r21, 1, r21
+        muls.l r25, r19, r19 /* s2.38 */
+        ldx.w r20, r21, r21  /* s2.14 */
+        ptabs r18, tr0
+        shari r19, 24, r19   /* truncate to s2.14 */
+        sub r21, r19, r19    /* some 11 bit inverse in s1.14 */
+        muls.l r19, r19, r21 /* u0.28 */
+        sub r63, r1, r1
+        addi r1, 92, r1
+        muls.l r25, r21, r18 /* s2.58 */
+        shlli r19, 45, r19   /* multiply by two and convert to s2.58 */
+        /* bubble */
+        sub r19, r18, r18
+        shari r18, 28, r18   /* some 22 bit inverse in s1.30 */
+        muls.l r18, r25, r0  /* s2.60 */
+        muls.l r18, r4, r25 /* s32.30 */
+        /* bubble */
+        shari r0, 16, r19   /* s-16.44 */
+        muls.l r19, r18, r19 /* s-16.74 */
+        shari r25, 63, r0
+        shari r4, 14, r18   /* s19.-14 */
+        shari r19, 30, r19   /* s-16.44 */
+        muls.l r19, r18, r19 /* s15.30 */
+        xor r21, r0, r21    /* You could also use the constant 1 << 27. */
+        add r21, r25, r21
+        sub r21, r19, r21
+        shard r21, r1, r21
+        sub r21, r0, r0
+        blink tr0, r63
+        
+/* This table has been generated by divtab.c .
+Defects for bias -330:
+   Max defect: 6.081536e-07 at -1.000000e+00
+   Min defect: 2.849516e-08 at 1.030651e+00
+   Max 2nd step defect: 9.606539e-12 at -1.000000e+00
+   Min 2nd step defect: 0.000000e+00 at 0.000000e+00
+   Defect at 1: 1.238659e-07
+   Defect at -2: 1.061708e-07 */
+        .balign 2
+        .type   __div_table,@object
+        .size   __div_table,128
+/* negative division constants */
+        .word   -16638
+        .word   -17135
+        .word   -17737
+        .word   -18433
+        .word   -19103
+        .word   -19751
+        .word   -20583
+        .word   -21383
+        .word   -22343
+        .word   -23353
+        .word   -24407
+        .word   -25582
+        .word   -26863
+        .word   -28382
+        .word   -29965
+        .word   -31800
+/* negative division factors */
+        .byte   66
+        .byte   70
+        .byte   75
+        .byte   81
+        .byte   87
+        .byte   93
+        .byte   101
+        .byte   109
+        .byte   119
+        .byte   130
+        .byte   142
+        .byte   156
+        .byte   172
+        .byte   192
+        .byte   214
+        .byte   241
+        .skip 16
+        .global __div_table
+__div_table:
+        .skip 16
+/* positive division factors */
+        .byte   241
+        .byte   214
+        .byte   192
+        .byte   172
+        .byte   156
+        .byte   142
+        .byte   130
+        .byte   119
+        .byte   109
+        .byte   101
+        .byte   93
+        .byte   87
+        .byte   81
+        .byte   75
+        .byte   70
+        .byte   66
+/* positive division constants */
+        .word   31801
+        .word   29966
+        .word   28383
+        .word   26864
+        .word   25583
+        .word   24408
+        .word   23354
+        .word   22344
+        .word   21384
+        .word   20584
+        .word   19752
+        .word   19104
+        .word   18434
+        .word   17738
+        .word   17136
+        .word   16639

diff --git a/arch/sh/lib64/sdivsi3.S b/arch/sh/lib64/sdivsi3.S new file mode 100644 index 000000000000..6a800c6a4904 --- /dev/null +++ b/arch/sh/lib64/sdivsi3.S
@@ -0,0 +1,131 @@
	1	.global __sdivsi3
	2	.section .text..SHmedia32,"ax"
	3	.align 2
	4
	5	/* inputs: r4,r5 */
	6	/* clobbered: r1,r18,r19,r20,r21,r25,tr0 */
	7	/* result in r0 */
	8	__sdivsi3:
	9	ptb __div_table,tr0
	10
	11	nsb r5, r1
	12	shlld r5, r1, r25 /* normalize; [-2 ..1, 1..2) in s2.62 */
	13	shari r25, 58, r21 /* extract 5(6) bit index (s2.4 with hole -1..1) */
	14	/* bubble */
	15	gettr tr0,r20
	16	ldx.ub r20, r21, r19 /* u0.8 */
	17	shari r25, 32, r25 /* normalize to s2.30 */
	18	shlli r21, 1, r21
	19	muls.l r25, r19, r19 /* s2.38 */
	20	ldx.w r20, r21, r21 /* s2.14 */
	21	ptabs r18, tr0
	22	shari r19, 24, r19 /* truncate to s2.14 */
	23	sub r21, r19, r19 /* some 11 bit inverse in s1.14 */
	24	muls.l r19, r19, r21 /* u0.28 */
	25	sub r63, r1, r1
	26	addi r1, 92, r1
	27	muls.l r25, r21, r18 /* s2.58 */
	28	shlli r19, 45, r19 /* multiply by two and convert to s2.58 */
	29	/* bubble */
	30	sub r19, r18, r18
	31	shari r18, 28, r18 /* some 22 bit inverse in s1.30 */
	32	muls.l r18, r25, r0 /* s2.60 */
	33	muls.l r18, r4, r25 /* s32.30 */
	34	/* bubble */
	35	shari r0, 16, r19 /* s-16.44 */
	36	muls.l r19, r18, r19 /* s-16.74 */
	37	shari r25, 63, r0
	38	shari r4, 14, r18 /* s19.-14 */
	39	shari r19, 30, r19 /* s-16.44 */
	40	muls.l r19, r18, r19 /* s15.30 */
	41	xor r21, r0, r21 /* You could also use the constant 1 << 27. */
	42	add r21, r25, r21
	43	sub r21, r19, r21
	44	shard r21, r1, r21
	45	sub r21, r0, r0
	46	blink tr0, r63
	47
	48	/* This table has been generated by divtab.c .
	49	Defects for bias -330:
	50	Max defect: 6.081536e-07 at -1.000000e+00
	51	Min defect: 2.849516e-08 at 1.030651e+00
	52	Max 2nd step defect: 9.606539e-12 at -1.000000e+00
	53	Min 2nd step defect: 0.000000e+00 at 0.000000e+00
	54	Defect at 1: 1.238659e-07
	55	Defect at -2: 1.061708e-07 */
	56
	57	.balign 2
	58	.type __div_table,@object
	59	.size __div_table,128
	60	/* negative division constants */
	61	.word -16638
	62	.word -17135
	63	.word -17737
	64	.word -18433
	65	.word -19103
	66	.word -19751
	67	.word -20583
	68	.word -21383
	69	.word -22343
	70	.word -23353
	71	.word -24407
	72	.word -25582
	73	.word -26863
	74	.word -28382
	75	.word -29965
	76	.word -31800
	77	/* negative division factors */
	78	.byte 66
	79	.byte 70
	80	.byte 75
	81	.byte 81
	82	.byte 87
	83	.byte 93
	84	.byte 101
	85	.byte 109
	86	.byte 119
	87	.byte 130
	88	.byte 142
	89	.byte 156
	90	.byte 172
	91	.byte 192
	92	.byte 214
	93	.byte 241
	94	.skip 16
	95	.global __div_table
	96	__div_table:
	97	.skip 16
	98	/* positive division factors */
	99	.byte 241
	100	.byte 214
	101	.byte 192
	102	.byte 172
	103	.byte 156
	104	.byte 142
	105	.byte 130
	106	.byte 119
	107	.byte 109
	108	.byte 101
	109	.byte 93
	110	.byte 87
	111	.byte 81
	112	.byte 75
	113	.byte 70
	114	.byte 66
	115	/* positive division constants */
	116	.word 31801
	117	.word 29966
	118	.word 28383
	119	.word 26864
	120	.word 25583
	121	.word 24408
	122	.word 23354
	123	.word 22344
	124	.word 21384
	125	.word 20584
	126	.word 19752
	127	.word 19104
	128	.word 18434
	129	.word 17738
	130	.word 17136
	131	.word 16639