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/* -----------------------------------------------------------------------
   n32.S - Copyright (c) 1996, 1998, 2005  Red Hat, Inc.
 
   MIPS Foreign Function Interface
 
   Permission is hereby granted, free of charge, to any person obtaining
   a copy of this software and associated documentation files (the
   ``Software''), to deal in the Software without restriction, including
   without limitation the rights to use, copy, modify, merge, publish,
   distribute, sublicense, and/or sell copies of the Software, and to
   permit persons to whom the Software is furnished to do so, subject to
   the following conditions:
 
   The above copyright notice and this permission notice shall be included
   in all copies or substantial portions of the Software.
 
   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   OTHER DEALINGS IN THE SOFTWARE.
   ----------------------------------------------------------------------- */
 
#define LIBFFI_ASM
#include 
#include 
 
/* Only build this code if we are compiling for n32 */
 
#if defined(FFI_MIPS_N32)
 
#define callback a0
#define bytes    a2
#define flags    a3
#define raddr    a4
#define fn       a5
 
#define SIZEOF_FRAME    ( 8 * FFI_SIZEOF_ARG )
 
        .abicalls
        .text
        .align  2
        .globl  ffi_call_N32
        .ent    ffi_call_N32
ffi_call_N32:
 
        # Prologue
        SUBU    $sp, SIZEOF_FRAME                       # Frame size
        REG_S   $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp)       # Save frame pointer
        REG_S   ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)        # Save return address
        move    $fp, $sp
 
        move    t9, callback    # callback function pointer
        REG_S   bytes, 2*FFI_SIZEOF_ARG($fp) # bytes
        REG_S   flags, 3*FFI_SIZEOF_ARG($fp) # flags
        REG_S   raddr, 4*FFI_SIZEOF_ARG($fp) # raddr
        REG_S   fn,    5*FFI_SIZEOF_ARG($fp) # fn
 
        # Allocate at least 4 words in the argstack
        move    v0, bytes
        bge     bytes, 4 * FFI_SIZEOF_ARG, bigger
        LI      v0, 4 * FFI_SIZEOF_ARG
        b       sixteen
 
        bigger:
        ADDU    t4, v0, 2 * FFI_SIZEOF_ARG -1   # make sure it is aligned
        and     v0, t4, -2 * FFI_SIZEOF_ARG             # to a proper boundry.
 
sixteen:
        SUBU    $sp, $sp, v0    # move the stack pointer to reflect the
                                # arg space
 
        ADDU    a0, $sp, 0      # 4 * FFI_SIZEOF_ARG
        ADDU    a3, $fp, 3 * FFI_SIZEOF_ARG
 
        # Call ffi_prep_args
        jal     t9
 
        #       ADDU    $sp, $sp, 4 * FFI_SIZEOF_ARG    # adjust $sp to new args
 
        # Copy the stack pointer to t9
        move    t9, $sp
 
        # Fix the stack if there are more than 8 64bit slots worth
        # of arguments.
 
        # Load the number of bytes
        REG_L   t6, 2*FFI_SIZEOF_ARG($fp)
 
        # Is it bigger than 8 * FFI_SIZEOF_ARG?
        dadd    t7, $0, 8 * FFI_SIZEOF_ARG
        dsub    t8, t6, t7
        bltz    t8, loadregs
 
        add     t9, t9, t8
 
loadregs:
 
        REG_L   t4, 3*FFI_SIZEOF_ARG($fp)  # load the flags word
        add     t6, t4, 0                             # and copy it into t6
 
        and     t4, ((1<
        bnez    t4, arg1_floatp
        REG_L   a0, 0*FFI_SIZEOF_ARG(t9)
        b       arg1_next
arg1_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg1_doublep
        l.s     $f12, 0*FFI_SIZEOF_ARG(t9)
        b       arg1_next
arg1_doublep:
        l.d     $f12, 0*FFI_SIZEOF_ARG(t9)
arg1_next:
 
        add     t4, t6, 0
        SRL     t4, 1*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg2_floatp
        REG_L   a1, 1*FFI_SIZEOF_ARG(t9)
        b       arg2_next
arg2_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg2_doublep
        l.s     $f13, 1*FFI_SIZEOF_ARG(t9)
        b       arg2_next
arg2_doublep:
        l.d     $f13, 1*FFI_SIZEOF_ARG(t9)
arg2_next:
 
        add     t4, t6, 0
        SRL     t4, 2*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg3_floatp
        REG_L   a2, 2*FFI_SIZEOF_ARG(t9)
        b       arg3_next
arg3_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg3_doublep
        l.s     $f14, 2*FFI_SIZEOF_ARG(t9)
        b       arg3_next
arg3_doublep:
        l.d     $f14, 2*FFI_SIZEOF_ARG(t9)
arg3_next:
 
        add     t4, t6, 0
        SRL     t4, 3*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg4_floatp
        REG_L   a3, 3*FFI_SIZEOF_ARG(t9)
        b       arg4_next
arg4_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg4_doublep
        l.s     $f15, 3*FFI_SIZEOF_ARG(t9)
        b       arg4_next
arg4_doublep:
        l.d     $f15, 3*FFI_SIZEOF_ARG(t9)
arg4_next:
 
        add     t4, t6, 0
        SRL     t4, 4*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg5_floatp
        REG_L   a4, 4*FFI_SIZEOF_ARG(t9)
        b       arg5_next
arg5_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg5_doublep
        l.s     $f16, 4*FFI_SIZEOF_ARG(t9)
        b       arg5_next
arg5_doublep:
        l.d     $f16, 4*FFI_SIZEOF_ARG(t9)
arg5_next:
 
        add     t4, t6, 0
        SRL     t4, 5*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg6_floatp
        REG_L   a5, 5*FFI_SIZEOF_ARG(t9)
        b       arg6_next
arg6_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg6_doublep
        l.s     $f17, 5*FFI_SIZEOF_ARG(t9)
        b       arg6_next
arg6_doublep:
        l.d     $f17, 5*FFI_SIZEOF_ARG(t9)
arg6_next:
 
        add     t4, t6, 0
        SRL     t4, 6*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg7_floatp
        REG_L   a6, 6*FFI_SIZEOF_ARG(t9)
        b       arg7_next
arg7_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg7_doublep
        l.s     $f18, 6*FFI_SIZEOF_ARG(t9)
        b       arg7_next
arg7_doublep:
        l.d     $f18, 6*FFI_SIZEOF_ARG(t9)
arg7_next:
 
        add     t4, t6, 0
        SRL     t4, 7*FFI_FLAG_BITS
        and     t4, ((1<
        bnez    t4, arg8_floatp
        REG_L   a7, 7*FFI_SIZEOF_ARG(t9)
        b       arg8_next
arg8_floatp:
        bne     t4, FFI_TYPE_FLOAT, arg8_doublep
        l.s     $f19, 7*FFI_SIZEOF_ARG(t9)
        b       arg8_next
arg8_doublep:
        l.d     $f19, 7*FFI_SIZEOF_ARG(t9)
arg8_next:
 
callit:
        # Load the function pointer
        REG_L   t9, 5*FFI_SIZEOF_ARG($fp)
 
        # If the return value pointer is NULL, assume no return value.
        REG_L   t5, 4*FFI_SIZEOF_ARG($fp)
        beqz    t5, noretval
 
        # Shift the return type flag over
        SRL     t6, 8*FFI_FLAG_BITS
 
        bne     t6, FFI_TYPE_INT, retfloat
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        REG_S   v0, 0(t4)
        b       epilogue
 
retfloat:
        bne     t6, FFI_TYPE_FLOAT, retdouble
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.s     $f0, 0(t4)
        b       epilogue
 
retdouble:
        bne     t6, FFI_TYPE_DOUBLE, retstruct_d
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.d     $f0, 0(t4)
        b       epilogue
 
retstruct_d:
        bne     t6, FFI_TYPE_STRUCT_D, retstruct_f
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.d     $f0, 0(t4)
        b       epilogue
 
retstruct_f:
        bne     t6, FFI_TYPE_STRUCT_F, retstruct_d_d
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.s     $f0, 0(t4)
        b       epilogue
 
retstruct_d_d:
        bne     t6, FFI_TYPE_STRUCT_DD, retstruct_f_f
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.d     $f0, 0(t4)
        s.d     $f2, 8(t4)
        b       epilogue
 
retstruct_f_f:
        bne     t6, FFI_TYPE_STRUCT_FF, retstruct_d_f
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.s     $f0, 0(t4)
        s.s     $f2, 4(t4)
        b       epilogue
 
retstruct_d_f:
        bne     t6, FFI_TYPE_STRUCT_DF, retstruct_f_d
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.d     $f0, 0(t4)
        s.s     $f2, 8(t4)
        b       epilogue
 
retstruct_f_d:
        bne     t6, FFI_TYPE_STRUCT_FD, retstruct_small
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        s.s     $f0, 0(t4)
        s.d     $f2, 8(t4)
        b       epilogue
 
retstruct_small:
        bne     t6, FFI_TYPE_STRUCT_SMALL, retstruct_small2
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        REG_S   v0, 0(t4)
        b       epilogue
 
retstruct_small2:
        bne     t6, FFI_TYPE_STRUCT_SMALL2, retstruct
        jal     t9
        REG_L   t4, 4*FFI_SIZEOF_ARG($fp)
        REG_S   v0, 0(t4)
        REG_S   v1, 8(t4)
        b       epilogue
 
retstruct:
noretval:
        jal     t9
 
        # Epilogue
epilogue:
        move    $sp, $fp
        REG_L   $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Restore frame pointer
        REG_L   ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)  # Restore return address
        ADDU    $sp, SIZEOF_FRAME                     # Fix stack pointer
        j       ra
 
        .end    ffi_call_N32
 
#endif

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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libffi/] [src/] [mips/] [n32.S] - Blame information for rev 14

Line No.	Rev	Author	Line
1	14	jlechner	`/* -----------------------------------------------------------------------`
2			`n32.S - Copyright (c) 1996, 1998, 2005 Red Hat, Inc.`
3
4			`MIPS Foreign Function Interface`
5
6			`Permission is hereby granted, free of charge, to any person obtaining`
7			`a copy of this software and associated documentation files (the`
8			``Software''), to deal in the Software without restriction, including
9			`without limitation the rights to use, copy, modify, merge, publish,`
10			`distribute, sublicense, and/or sell copies of the Software, and to`
11			`permit persons to whom the Software is furnished to do so, subject to`
12			`the following conditions:`
13
14			`The above copyright notice and this permission notice shall be included`
15			`in all copies or substantial portions of the Software.`
16
17			THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
18			`OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF`
19			`MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.`
20			`IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR`
21			`OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,`
22			`ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR`
23			`OTHER DEALINGS IN THE SOFTWARE.`
24			`----------------------------------------------------------------------- */`
25
26			`#define LIBFFI_ASM`
27			`#include`
28			`#include`
29
30			`/* Only build this code if we are compiling for n32 */`
31
32			`#if defined(FFI_MIPS_N32)`
33
34			`#define callback a0`
35			`#define bytes a2`
36			`#define flags a3`
37			`#define raddr a4`
38			`#define fn a5`
39
40			`#define SIZEOF_FRAME ( 8 * FFI_SIZEOF_ARG )`
41
42			`.abicalls`
43			`.text`
44			`.align 2`
45			`.globl ffi_call_N32`
46			`.ent ffi_call_N32`
47			`ffi_call_N32:`
48
49			`# Prologue`
50			`SUBU $sp, SIZEOF_FRAME # Frame size`
51			`REG_S $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Save frame pointer`
52			`REG_S ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp) # Save return address`
53			`move $fp, $sp`
54
55			`move t9, callback # callback function pointer`
56			`REG_S bytes, 2*FFI_SIZEOF_ARG($fp) # bytes`
57			`REG_S flags, 3*FFI_SIZEOF_ARG($fp) # flags`
58			`REG_S raddr, 4*FFI_SIZEOF_ARG($fp) # raddr`
59			`REG_S fn, 5*FFI_SIZEOF_ARG($fp) # fn`
60
61			`# Allocate at least 4 words in the argstack`
62			`move v0, bytes`
63			`bge bytes, 4 * FFI_SIZEOF_ARG, bigger`
64			`LI v0, 4 * FFI_SIZEOF_ARG`
65			`b sixteen`
66
67			`bigger:`
68			`ADDU t4, v0, 2 * FFI_SIZEOF_ARG -1 # make sure it is aligned`
69			`and v0, t4, -2 * FFI_SIZEOF_ARG # to a proper boundry.`
70
71			`sixteen:`
72			`SUBU $sp, $sp, v0 # move the stack pointer to reflect the`
73			`# arg space`
74
75			`ADDU a0, $sp, 0 # 4 * FFI_SIZEOF_ARG`
76			`ADDU a3, $fp, 3 * FFI_SIZEOF_ARG`
77
78			`# Call ffi_prep_args`
79			`jal t9`
80
81			`# ADDU $sp, $sp, 4 * FFI_SIZEOF_ARG # adjust $sp to new args`
82
83			`# Copy the stack pointer to t9`
84			`move t9, $sp`
85
86			`# Fix the stack if there are more than 8 64bit slots worth`
87			`# of arguments.`
88
89			`# Load the number of bytes`
90			`REG_L t6, 2*FFI_SIZEOF_ARG($fp)`
91
92			`# Is it bigger than 8 * FFI_SIZEOF_ARG?`
93			`dadd t7, $0, 8 * FFI_SIZEOF_ARG`
94			`dsub t8, t6, t7`
95			`bltz t8, loadregs`
96
97			`add t9, t9, t8`
98
99			`loadregs:`
100
101			`REG_L t4, 3*FFI_SIZEOF_ARG($fp) # load the flags word`
102			`add t6, t4, 0 # and copy it into t6`
103
104			`and t4, ((1<`
105			`bnez t4, arg1_floatp`
106			`REG_L a0, 0*FFI_SIZEOF_ARG(t9)`
107			`b arg1_next`
108			`arg1_floatp:`
109			`bne t4, FFI_TYPE_FLOAT, arg1_doublep`
110			`l.s $f12, 0*FFI_SIZEOF_ARG(t9)`
111			`b arg1_next`
112			`arg1_doublep:`
113			`l.d $f12, 0*FFI_SIZEOF_ARG(t9)`
114			`arg1_next:`
115
116			`add t4, t6, 0`
117			`SRL t4, 1*FFI_FLAG_BITS`
118			`and t4, ((1<`
119			`bnez t4, arg2_floatp`
120			`REG_L a1, 1*FFI_SIZEOF_ARG(t9)`
121			`b arg2_next`
122			`arg2_floatp:`
123			`bne t4, FFI_TYPE_FLOAT, arg2_doublep`
124			`l.s $f13, 1*FFI_SIZEOF_ARG(t9)`
125			`b arg2_next`
126			`arg2_doublep:`
127			`l.d $f13, 1*FFI_SIZEOF_ARG(t9)`
128			`arg2_next:`
129
130			`add t4, t6, 0`
131			`SRL t4, 2*FFI_FLAG_BITS`
132			`and t4, ((1<`
133			`bnez t4, arg3_floatp`
134			`REG_L a2, 2*FFI_SIZEOF_ARG(t9)`
135			`b arg3_next`
136			`arg3_floatp:`
137			`bne t4, FFI_TYPE_FLOAT, arg3_doublep`
138			`l.s $f14, 2*FFI_SIZEOF_ARG(t9)`
139			`b arg3_next`
140			`arg3_doublep:`
141			`l.d $f14, 2*FFI_SIZEOF_ARG(t9)`
142			`arg3_next:`
143
144			`add t4, t6, 0`
145			`SRL t4, 3*FFI_FLAG_BITS`
146			`and t4, ((1<`
147			`bnez t4, arg4_floatp`
148			`REG_L a3, 3*FFI_SIZEOF_ARG(t9)`
149			`b arg4_next`
150			`arg4_floatp:`
151			`bne t4, FFI_TYPE_FLOAT, arg4_doublep`
152			`l.s $f15, 3*FFI_SIZEOF_ARG(t9)`
153			`b arg4_next`
154			`arg4_doublep:`
155			`l.d $f15, 3*FFI_SIZEOF_ARG(t9)`
156			`arg4_next:`
157
158			`add t4, t6, 0`
159			`SRL t4, 4*FFI_FLAG_BITS`
160			`and t4, ((1<`
161			`bnez t4, arg5_floatp`
162			`REG_L a4, 4*FFI_SIZEOF_ARG(t9)`
163			`b arg5_next`
164			`arg5_floatp:`
165			`bne t4, FFI_TYPE_FLOAT, arg5_doublep`
166			`l.s $f16, 4*FFI_SIZEOF_ARG(t9)`
167			`b arg5_next`
168			`arg5_doublep:`
169			`l.d $f16, 4*FFI_SIZEOF_ARG(t9)`
170			`arg5_next:`
171
172			`add t4, t6, 0`
173			`SRL t4, 5*FFI_FLAG_BITS`
174			`and t4, ((1<`
175			`bnez t4, arg6_floatp`
176			`REG_L a5, 5*FFI_SIZEOF_ARG(t9)`
177			`b arg6_next`
178			`arg6_floatp:`
179			`bne t4, FFI_TYPE_FLOAT, arg6_doublep`
180			`l.s $f17, 5*FFI_SIZEOF_ARG(t9)`
181			`b arg6_next`
182			`arg6_doublep:`
183			`l.d $f17, 5*FFI_SIZEOF_ARG(t9)`
184			`arg6_next:`
185
186			`add t4, t6, 0`
187			`SRL t4, 6*FFI_FLAG_BITS`
188			`and t4, ((1<`
189			`bnez t4, arg7_floatp`
190			`REG_L a6, 6*FFI_SIZEOF_ARG(t9)`
191			`b arg7_next`
192			`arg7_floatp:`
193			`bne t4, FFI_TYPE_FLOAT, arg7_doublep`
194			`l.s $f18, 6*FFI_SIZEOF_ARG(t9)`
195			`b arg7_next`
196			`arg7_doublep:`
197			`l.d $f18, 6*FFI_SIZEOF_ARG(t9)`
198			`arg7_next:`
199
200			`add t4, t6, 0`
201			`SRL t4, 7*FFI_FLAG_BITS`
202			`and t4, ((1<`
203			`bnez t4, arg8_floatp`
204			`REG_L a7, 7*FFI_SIZEOF_ARG(t9)`
205			`b arg8_next`
206			`arg8_floatp:`
207			`bne t4, FFI_TYPE_FLOAT, arg8_doublep`
208			`l.s $f19, 7*FFI_SIZEOF_ARG(t9)`
209			`b arg8_next`
210			`arg8_doublep:`
211			`l.d $f19, 7*FFI_SIZEOF_ARG(t9)`
212			`arg8_next:`
213
214			`callit:`
215			`# Load the function pointer`
216			`REG_L t9, 5*FFI_SIZEOF_ARG($fp)`
217
218			`# If the return value pointer is NULL, assume no return value.`
219			`REG_L t5, 4*FFI_SIZEOF_ARG($fp)`
220			`beqz t5, noretval`
221
222			`# Shift the return type flag over`
223			`SRL t6, 8*FFI_FLAG_BITS`
224
225			`bne t6, FFI_TYPE_INT, retfloat`
226			`jal t9`
227			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
228			`REG_S v0, 0(t4)`
229			`b epilogue`
230
231			`retfloat:`
232			`bne t6, FFI_TYPE_FLOAT, retdouble`
233			`jal t9`
234			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
235			`s.s $f0, 0(t4)`
236			`b epilogue`
237
238			`retdouble:`
239			`bne t6, FFI_TYPE_DOUBLE, retstruct_d`
240			`jal t9`
241			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
242			`s.d $f0, 0(t4)`
243			`b epilogue`
244
245			`retstruct_d:`
246			`bne t6, FFI_TYPE_STRUCT_D, retstruct_f`
247			`jal t9`
248			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
249			`s.d $f0, 0(t4)`
250			`b epilogue`
251
252			`retstruct_f:`
253			`bne t6, FFI_TYPE_STRUCT_F, retstruct_d_d`
254			`jal t9`
255			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
256			`s.s $f0, 0(t4)`
257			`b epilogue`
258
259			`retstruct_d_d:`
260			`bne t6, FFI_TYPE_STRUCT_DD, retstruct_f_f`
261			`jal t9`
262			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
263			`s.d $f0, 0(t4)`
264			`s.d $f2, 8(t4)`
265			`b epilogue`
266
267			`retstruct_f_f:`
268			`bne t6, FFI_TYPE_STRUCT_FF, retstruct_d_f`
269			`jal t9`
270			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
271			`s.s $f0, 0(t4)`
272			`s.s $f2, 4(t4)`
273			`b epilogue`
274
275			`retstruct_d_f:`
276			`bne t6, FFI_TYPE_STRUCT_DF, retstruct_f_d`
277			`jal t9`
278			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
279			`s.d $f0, 0(t4)`
280			`s.s $f2, 8(t4)`
281			`b epilogue`
282
283			`retstruct_f_d:`
284			`bne t6, FFI_TYPE_STRUCT_FD, retstruct_small`
285			`jal t9`
286			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
287			`s.s $f0, 0(t4)`
288			`s.d $f2, 8(t4)`
289			`b epilogue`
290
291			`retstruct_small:`
292			`bne t6, FFI_TYPE_STRUCT_SMALL, retstruct_small2`
293			`jal t9`
294			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
295			`REG_S v0, 0(t4)`
296			`b epilogue`
297
298			`retstruct_small2:`
299			`bne t6, FFI_TYPE_STRUCT_SMALL2, retstruct`
300			`jal t9`
301			`REG_L t4, 4*FFI_SIZEOF_ARG($fp)`
302			`REG_S v0, 0(t4)`
303			`REG_S v1, 8(t4)`
304			`b epilogue`
305
306			`retstruct:`
307			`noretval:`
308			`jal t9`
309
310			`# Epilogue`
311			`epilogue:`
312			`move $sp, $fp`
313			`REG_L $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Restore frame pointer`
314			`REG_L ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp) # Restore return address`
315			`ADDU $sp, SIZEOF_FRAME # Fix stack pointer`
316			`j ra`
317
318			`.end ffi_call_N32`
319
320			`#endif`