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
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
|
// Copyright (c) 1998 Albrecht Kleine All rights reserved
// file version #200
#define TYAASM_S
#include "tyaconfig.h"
#include "tya.h"
#undef TYAASM_S
.text
.align 16
.globl Arrstex
.type Arrstex,@function
Arrstex:
pushl %eax
pushl %ebx
movl (LOCSTART-16)(%ebp),%ecx
// get EE into ecx
pushl %ecx
// cc=(ClassClass**)unhand(arr);
movl (%ebx),%eax
// dcb=*(cc+obj_length(arr));
movl 4(%ebx),%ecx
shrl $5,%ecx
movl (%eax,%ecx,4),%eax
//
pushl %eax
pushl %edx
call is_instance_of
orl %eax,%eax
popl %edx
popl %ebx
popl %ecx
popl %ebx
popl %eax
ret
//////////////////////////////////////////////////////////////
#ifdef FAST_NATIVE102STYLE
.align 16
.globl CRun32asm
.type CRun32asm,@function
CRun32asm:
pushl %ebp
movl %esp,%ebp
movl 8(%ebp),%edi
movl 12(%ebp),%esi
movl 16(%ebp),%ebx
push %edi
push %esi
movl (%esi), %edi //save
call *%ebx
movl (%esi), %eax // LO
movl %edi, (%esi) //restore
movl %ebp,%esp
popl %ebp
ret
#endif
//////////////////////////////////////////////////////////////
#ifdef FAST_NATIVE102STYLE
.align 16
.globl CRun64asm
.type CRun64asm,@function
CRun64asm:
pushl %ebp
movl %esp,%ebp
movl 8(%ebp),%edi
movl 12(%ebp),%esi
movl 16(%ebp),%ebx
push %edi
push %esi
movl 4(%esi), %edi // save // nb32
movl %edi, 12(%ebp) // nb 32
movl (%esi), %edi
call *%ebx
movl (%esi), %eax // LO
movl 4(%esi), %edx // HI
movl %edi, (%esi) //restore
movl 12(%ebp), %edi // nb 32
movl %edi, 4(%esi) // nb 32
movl %ebp,%esp
popl %ebp
ret
#endif
///////////////////////////////////////////////////////////
#ifdef USEASM
.globl FastInvCheck32,FastInvNoCheck32
//
// this looks from C side as follows:
//
// void* FastInvCheck(struct execenv *ee,struct methodblock *mbpcalled,stack_item *sp);
// = ebx = eax = 12(%esp)
//
.type FastInvCheck32,@function
.align 16
FastInvCheck32:
cmpl $0,68(%eax)
je FICheck32_2
FastInvNoCheck32:
movl 4(%ebx),%ecx
movl %ecx,%edx // cfr
addl $44,%ecx // new JF
//
// if ((char*)JF > (char*)ee->current_frame->javastack->end_data)
// StOvExcHandler();
//
movl 20(%edx),%edx // cfr->jstc
cmpl %ecx,12(%edx) // end_data @ 12
jae FICheck32_1
call StOvExcHandler
FICheck32_1:
movl 12(%esp),%edx // == stack_item *sp
movl %edx,12(%ecx)
movl 4(%ebx),%edx
movl %edx,16(%ecx)
movl %eax,28(%ecx)
movl 20(%edx),%edx
movl %edx,20(%ecx)
leal 40(%ecx),%edx
movl %edx,8(%ecx) // ecx is ee->current_frame
movl %ecx,4(%ebx)
movl 68(%eax),%eax
//
movl 16(%ecx),%ecx // ...->prev [ also via subl $44,%ecx ]
ret
// returning:
// eax is mbpcalled->CompiledCode / ebx is ee / ecx is ee->current_frame->prev
//
// JF++;
// JF->vars=sp;
// JF->prev=ee->current_frame;
// JF->current_method=mbpcalled;
// JF->javastack=ee->current_frame->javastack;
// JF->optop=JF->ostack;
// ee->current_frame=JF;
//
.align 16
FICheck32_2:
testb $1,17(%eax) // this is ACC_NATIVE's hibyte
jne FICheck32_3
pushl %ebx
pushl %eax
call JITCompileMethod
testl %eax,%eax
popl %eax
popl %ebx
jne FastInvNoCheck32
FICheck32_3:
movl 4(%ebx),%ecx
movl $CodeRunner32_withDummies,%eax
ret
.globl FastInvCheck64,FastInvNoCheck64
.type FastInvCheck64,@function
.align 16
FastInvCheck64:
cmpl $0,68(%eax)
je FICheck64_2
FastInvNoCheck64:
movl 4(%ebx),%ecx
movl %ecx,%edx // cfr
addl $44,%ecx // new JF
//
// if ((char*)JF > (char*)ee->current_frame->javastack->end_data)
// StOvExcHandler();
//
movl 20(%edx),%edx // cfr->jstc
cmpl %ecx,12(%edx) // end_data @ 12
jae FICheck64_1
call StOvExcHandler
FICheck64_1:
movl 12(%esp),%edx // == stack_item *sp
movl %edx,12(%ecx)
movl 4(%ebx),%edx
movl %edx,16(%ecx)
movl %eax,28(%ecx)
movl 20(%edx),%edx
movl %edx,20(%ecx)
leal 40(%ecx),%edx
movl %edx,8(%ecx) // ecx is ee->current_frame
movl %ecx,4(%ebx)
movl 68(%eax),%eax
//
movl 16(%ecx),%ecx // ...->prev [ also via subl $44,%ecx ]
ret
// returning:
// eax is mbpcalled->CompiledCode / ebx is ee / ecx is ee->current_frame->prev
//
// JF++;
// JF->vars=sp;
// JF->prev=ee->current_frame;
// JF->current_method=mbpcalled;
// JF->javastack=ee->current_frame->javastack;
// JF->optop=JF->ostack;
// ee->current_frame=JF;
//
.align 16
FICheck64_2:
testb $1,17(%eax) // this is ACC_NATIVE's hibyte
jne FICheck64_3
pushl %ebx
pushl %eax
call JITCompileMethod
testl %eax,%eax
popl %eax
popl %ebx
jne FastInvNoCheck64
FICheck64_3:
movl $CodeRunner64_withDummies,%eax
movl 4(%ebx),%ecx
ret
#endif
//////////////////////////////////////////////////////////////
#ifdef USEASM
.align 16
.globl MyObjAlloc
.type MyObjAlloc,@function
MyObjAlloc:
// expecting class in eax
pushl $0
pushl %eax
call ObjAlloc
popl %ebx
popl %ecx
testl %eax,%eax
je .MyObjAlloc2
movl (%ebx),%edx // unhand(class)
movl %edi,%ebx // save edi
movl (%eax),%edi // unhand(object)
movzwl 84(%edx),%ecx
movl %eax,%edx
shrl $0x2,%ecx
xorl %eax,%eax
cld
rep
stosl %es:(%edi)
movl %edx,%eax
movl %ebx,%edi // restore edi
ret
.MyObjAlloc2:
jmp out_of_memory
#endif
//////////////////////////////////////////////////////////////
.align 16
.globl StOvExcHandler
.type StOvExcHandler,@function
StOvExcHandler:
#ifndef USEASM
movl %ebp,%esp // discard caller's C stack frame
popl %ebp // for access to stack pointer
#endif
call EE
pushl StOvExc // params for ExecExcep
pushl %eax
jmp SEH1 // exc is not catchable inside method
/////////////////////////////////////////////////////////////
.align 16
.globl SimpleExcHandler
.type SimpleExcHandler,@function
SimpleExcHandler:
pushl %eax // expecting in eax: ExcObject
movl (LOCSTART-16)(%ebp),%edx // get EE into ecx
pushl %edx
SEH1:
call ExecExcep
movl %ebp,%esp // standard epilog
popl %ebp
popl %edi
popl %esi
popl %ebx
ret
/////////////////////////////////////////////////////////////
|
