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Up to [Power 6/32 Unix Tahoe 4.2BSD] / cci / sys / tahoe|
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1.1 root 1: .data
2: .comm _errno,4
3: .align 2
4: _log2: .long 0x40317217, 0xf7d1cf7a # .double 0.69314718055994531
5: .align 2
6: _ln10: .long 0x41135d8d, 0xddaaa8ac # .double 2.3025850929940457
7: .align 2
8: _sqrto2:
9: .long 0x403504f3, 0x33f9de65 # .double 0.70710678118654753
10: .align 2
11: _p0: .long 0xc154114d, 0xeb0ba468 # .double -3.31355617479
12: .align 2
13: _p1: .long 0x40654226, 0x56bd0c4c # .double 0.89554061525
14: .align 2
15: _q0: .long 0xc0d4114c, 0xfdc7df02 # .double -1.65677797691
16: .align 2
17: _q1: .long 0x40800000, 0x00000000 # .double 1
18: .text
19: LL0: .align 1
20: .globl _Klogf
21: .data
22: .align 2
23: L54: .long 0xfffffffe, 0xfffffffe # .double -1.7014117331926443e+38
24: .text
25: .data
26: .align 2
27: L57: .long 0x40000000, 0x00000000 # .double 0.5
28: .text
29: .data
30: .align 2
31: L58: .long 0x41000000, 0x00000000 # .double 2
32: .text
33: .data
34: .align 2
35: L60: .long 0x41000000, 0x00000000 # .double 2
36: .text
37: .data
38: .align 2
39: L61: .long 0x40800000, 0x00000000 # .double 1
40: .align 2
41: L62: .long 0x40800000, 0x00000000 # .double 1
42: .text
43: .set L49,0x3c # Using registers 2,3,4,5
44: .data
45: .text
46: _Klogf: .word L49
47: subl3 $88,fp,sp
48: clrl 8(fp)
49: tstl 4(fp)
50: jgtr L53
51: movl $33,_errno
52: movl L54+4,r1
53: movl L54,r0
54: ret
55: L53: pushl 20(fp) # hfs
56: subl3 $88,fp,-(sp) # &exp
57: pushl 8(fp) # arg
58: pushl 4(fp)
59: callf $20,_Kfrexpf
60: ldd r0
61: # movl r1,-56(fp)
62: std -60(fp) # movl r0,-60(fp)
63: jbr L55
64: L2000001:
65: pushl 20(fp) # hfs
66: ldd L58 # 2.0
67: pushd
68: ldd -60(fp) # x
69: pushd
70: callf $24,_Kmuld
71: ldd r0
72: std -60(fp)
73: subl2 $1,-88(fp)
74: L55: cmpd2 -60(fp),L57
75: jlss L2000001
76: cmpd2 -60(fp),_sqrto2
77: jgeq L59
78: pushl 20(fp) # hfs
79: ldd -60(fp) # x
80: pushd
81: ldd L60 # 2.0
82: pushd
83: callf $24,_Kmuld
84: ldd r0
85: std -60(fp)
86: subl2 $1,-88(fp)
87: L59: pushl 20(fp) # hfs
88: ldd L61 # 1.0
89: pushd
90: ldd -60(fp) # x
91: pushd
92: callf $24,_Ksubd
93: ldd r0
94: std r2
95: pushl 20(fp) # hfs
96: ldd L62 # 1.0
97: pushd
98: ldd -60(fp) # x
99: pushd
100: callf $24,_Kaddd
101: ldd r0
102: std r4
103: pushl 20(fp) # hfs
104: ldd r4 # temp result of x-1
105: pushd
106: ldd r2 # temp result of x+1
107: pushd
108: callf $24,_Kdivd
109: ldd r0
110: std -68(fp) # z
111: pushl 20(fp) # hfs
112: pushd # z
113: pushd # z
114: callf $24,_Kmuld
115: ldd r0
116: std -76(fp) # zsq
117: pushl 20(fp) # hfs
118: ldd -76(fp) # zsq
119: pushd
120: ldd _p1 # p1
121: pushd
122: callf $24,_Kmuld
123: ldd r0
124: std r2
125: pushl 20(fp) # hfs
126: ldd _p0 # p0
127: pushd
128: ldd r2
129: pushd
130: callf $24,_Kaddd
131: ldd r0
132: std -84(fp) # temp
133: pushl 20(fp) # hfs
134: ldd -76(fp) # zsq
135: pushd
136: ldd _q1
137: pushd
138: callf $24,_Kmuld
139: ldd r0
140: std r2
141: pushl 20(fp) # hfs
142: ldd _q0 # q0
143: pushd
144: ldd r2
145: pushd
146: callf $24,_Kaddd
147: ldd r0
148: std r2 # temp result of (q1*zsq+q0)
149: pushl 20(fp) # hfs
150: ldd r2
151: pushd
152: ldd -84(fp) # temp
153: pushd
154: callf $24,_Kdivd
155: ldd r0
156: std -84(fp) # put in temp
157: pushl 20(fp) # hfs
158: ldd -68(fp) # z
159: pushd
160: ldd -84(fp)
161: pushd
162: callf $24,_Kmuld
163: ldd r0
164: std r2
165: pushl 20(fp) #hfs
166: pushl $0 # 0 pad
167: pushl -88(fp) # exp
168: pushl $0 # dummy
169: pushl $0 # dummy
170: callf $24,_Kcvtld
171: pushl 20(fp) # hfs
172: ldd _log2 # log2
173: pushd
174: pushl r1 # exp converted
175: pushl r0
176: callf $24,_Kmuld
177: ldd r0
178: std r4
179: pushl 20(fp) # hfs
180: ldd r2 # result of temp*z
181: pushd
182: ldd r4
183: pushd
184: callf $24,_Kaddd
185: ldd r0
186: cvdf
187: stf r0
188: clrl r1
189: ret
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