summaryrefslogtreecommitdiff
path: root/deps/openssl/asm/x86-win32-masm/x86cpuid.asm
blob: 7e663d664508a8428d0bffe9c98be89425bb3d8e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
TITLE	x86cpuid.asm
IF @Version LT 800
ECHO MASM version 8.00 or later is strongly recommended.
ENDIF
.586
.MODEL	FLAT
OPTION	DOTNAME
IF @Version LT 800
.text$	SEGMENT PAGE 'CODE'
ELSE
.text$	SEGMENT ALIGN(64) 'CODE'
ENDIF
ALIGN	16
_OPENSSL_ia32_cpuid	PROC PUBLIC
$L_OPENSSL_ia32_cpuid_begin::
	push	ebp
	push	ebx
	push	esi
	push	edi
	xor	edx,edx
	pushfd
	pop	eax
	mov	ecx,eax
	xor	eax,2097152
	push	eax
	popfd
	pushfd
	pop	eax
	xor	ecx,eax
	bt	ecx,21
	jnc	$L000done
	xor	eax,eax
	cpuid
	mov	edi,eax
	xor	eax,eax
	cmp	ebx,1970169159
	setne	al
	mov	ebp,eax
	cmp	edx,1231384169
	setne	al
	or	ebp,eax
	cmp	ecx,1818588270
	setne	al
	or	ebp,eax
	jz	$L001intel
	cmp	ebx,1752462657
	setne	al
	mov	esi,eax
	cmp	edx,1769238117
	setne	al
	or	esi,eax
	cmp	ecx,1145913699
	setne	al
	or	esi,eax
	jnz	$L001intel
	mov	eax,2147483648
	cpuid
	cmp	eax,2147483656
	jb	$L001intel
	mov	eax,2147483656
	cpuid
	movzx	esi,cl
	inc	esi
	mov	eax,1
	cpuid
	bt	edx,28
	jnc	$L000done
	shr	ebx,16
	and	ebx,255
	cmp	ebx,esi
	ja	$L000done
	and	edx,4026531839
	jmp	$L000done
$L001intel:
	cmp	edi,4
	mov	edi,-1
	jb	$L002nocacheinfo
	mov	eax,4
	mov	ecx,0
	cpuid
	mov	edi,eax
	shr	edi,14
	and	edi,4095
$L002nocacheinfo:
	mov	eax,1
	cpuid
	cmp	ebp,0
	jne	$L003notP4
	and	ah,15
	cmp	ah,15
	jne	$L003notP4
	or	edx,1048576
$L003notP4:
	bt	edx,28
	jnc	$L000done
	and	edx,4026531839
	cmp	edi,0
	je	$L000done
	or	edx,268435456
	shr	ebx,16
	cmp	bl,1
	ja	$L000done
	and	edx,4026531839
$L000done:
	mov	eax,edx
	mov	edx,ecx
	pop	edi
	pop	esi
	pop	ebx
	pop	ebp
	ret
_OPENSSL_ia32_cpuid ENDP
;EXTERN	_OPENSSL_ia32cap_P:NEAR
ALIGN	16
_OPENSSL_rdtsc	PROC PUBLIC
$L_OPENSSL_rdtsc_begin::
	xor	eax,eax
	xor	edx,edx
	lea	ecx,DWORD PTR _OPENSSL_ia32cap_P
	bt	DWORD PTR [ecx],4
	jnc	$L004notsc
	rdtsc
$L004notsc:
	ret
_OPENSSL_rdtsc ENDP
ALIGN	16
_OPENSSL_instrument_halt	PROC PUBLIC
$L_OPENSSL_instrument_halt_begin::
	lea	ecx,DWORD PTR _OPENSSL_ia32cap_P
	bt	DWORD PTR [ecx],4
	jnc	$L005nohalt
DD	2421723150
	and	eax,3
	jnz	$L005nohalt
	pushfd
	pop	eax
	bt	eax,9
	jnc	$L005nohalt
	rdtsc
	push	edx
	push	eax
	hlt
	rdtsc
	sub	eax,DWORD PTR [esp]
	sbb	edx,DWORD PTR 4[esp]
	add	esp,8
	ret
$L005nohalt:
	xor	eax,eax
	xor	edx,edx
	ret
_OPENSSL_instrument_halt ENDP
ALIGN	16
_OPENSSL_far_spin	PROC PUBLIC
$L_OPENSSL_far_spin_begin::
	pushfd
	pop	eax
	bt	eax,9
	jnc	$L006nospin
	mov	eax,DWORD PTR 4[esp]
	mov	ecx,DWORD PTR 8[esp]
DD	2430111262
	xor	eax,eax
	mov	edx,DWORD PTR [ecx]
	jmp	$L007spin
ALIGN	16
$L007spin:
	inc	eax
	cmp	edx,DWORD PTR [ecx]
	je	$L007spin
DD	529567888
	ret
$L006nospin:
	xor	eax,eax
	xor	edx,edx
	ret
_OPENSSL_far_spin ENDP
ALIGN	16
_OPENSSL_wipe_cpu	PROC PUBLIC
$L_OPENSSL_wipe_cpu_begin::
	xor	eax,eax
	xor	edx,edx
	lea	ecx,DWORD PTR _OPENSSL_ia32cap_P
	mov	ecx,DWORD PTR [ecx]
	bt	DWORD PTR [ecx],1
	jnc	$L008no_x87
DD	4007259865,4007259865,4007259865,4007259865,2430851995
$L008no_x87:
	lea	eax,DWORD PTR 4[esp]
	ret
_OPENSSL_wipe_cpu ENDP
ALIGN	16
_OPENSSL_atomic_add	PROC PUBLIC
$L_OPENSSL_atomic_add_begin::
	mov	edx,DWORD PTR 4[esp]
	mov	ecx,DWORD PTR 8[esp]
	push	ebx
	nop
	mov	eax,DWORD PTR [edx]
$L009spin:
	lea	ebx,DWORD PTR [ecx*1+eax]
	nop
DD	447811568
	jne	$L009spin
	mov	eax,ebx
	pop	ebx
	ret
_OPENSSL_atomic_add ENDP
ALIGN	16
_OPENSSL_indirect_call	PROC PUBLIC
$L_OPENSSL_indirect_call_begin::
	push	ebp
	mov	ebp,esp
	sub	esp,28
	mov	ecx,DWORD PTR 12[ebp]
	mov	DWORD PTR [esp],ecx
	mov	edx,DWORD PTR 16[ebp]
	mov	DWORD PTR 4[esp],edx
	mov	eax,DWORD PTR 20[ebp]
	mov	DWORD PTR 8[esp],eax
	mov	eax,DWORD PTR 24[ebp]
	mov	DWORD PTR 12[esp],eax
	mov	eax,DWORD PTR 28[ebp]
	mov	DWORD PTR 16[esp],eax
	mov	eax,DWORD PTR 32[ebp]
	mov	DWORD PTR 20[esp],eax
	mov	eax,DWORD PTR 36[ebp]
	mov	DWORD PTR 24[esp],eax
	call	DWORD PTR 8[ebp]
	mov	esp,ebp
	pop	ebp
	ret
_OPENSSL_indirect_call ENDP
ALIGN	16
_OPENSSL_cleanse	PROC PUBLIC
$L_OPENSSL_cleanse_begin::
	mov	edx,DWORD PTR 4[esp]
	mov	ecx,DWORD PTR 8[esp]
	xor	eax,eax
	cmp	ecx,7
	jae	$L010lot
	cmp	ecx,0
	je	$L011ret
$L012little:
	mov	BYTE PTR [edx],al
	sub	ecx,1
	lea	edx,DWORD PTR 1[edx]
	jnz	$L012little
$L011ret:
	ret
ALIGN	16
$L010lot:
	test	edx,3
	jz	$L013aligned
	mov	BYTE PTR [edx],al
	lea	ecx,DWORD PTR [ecx-1]
	lea	edx,DWORD PTR 1[edx]
	jmp	$L010lot
$L013aligned:
	mov	DWORD PTR [edx],eax
	lea	ecx,DWORD PTR [ecx-4]
	test	ecx,-4
	lea	edx,DWORD PTR 4[edx]
	jnz	$L013aligned
	cmp	ecx,0
	jne	$L012little
	ret
_OPENSSL_cleanse ENDP
.text$	ENDS
.bss	SEGMENT 'BSS'
COMM	_OPENSSL_ia32cap_P:DWORD
.bss	ENDS
.CRT$XCU	SEGMENT DWORD PUBLIC 'DATA'
EXTERN	_OPENSSL_cpuid_setup:NEAR
DD	_OPENSSL_cpuid_setup
.CRT$XCU	ENDS
END