Mercurial > pub > dyncall > dyncall
annotate dyncallback/dyncall_callback_arm64.S @ 357:d982a00c2177
- PPC64 asm syntax fix, specifying explicitly comparison mode for cmpi (newer toolchains complain, older ones took optional field of instruction which happened to be same value)
| author | Tassilo Philipp |
|---|---|
| date | Tue, 25 Feb 2020 18:16:13 +0100 |
| parents | f5577f6bf97a |
| children | 451299d50c1a |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncallback | |
|
15
03c516772c65
- consistency in filenames that have cpp logic .s -> .S
cslag
parents:
0
diff
changeset
|
5 File: dyncallback/dyncall_callback_arm64.S |
| 0 | 6 Description: Callback Thunk - Implementation for ARM64 / ARMv8 / AAPCS64 |
| 7 License: | |
| 8 | |
| 281 | 9 Copyright (c) 2015-2018 Daniel Adler <dadler@uni-goettingen.de>, |
| 10 Tassilo Philipp <tphilipp@potion-studios.com> | |
| 0 | 11 |
| 12 Permission to use, copy, modify, and distribute this software for any | |
| 13 purpose with or without fee is hereby granted, provided that the above | |
| 14 copyright notice and this permission notice appear in all copies. | |
| 15 | |
| 16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 23 | |
| 24 */ | |
| 25 // struct DCCallback | |
| 26 // type off size | |
| 27 // ---------|------|------ | |
| 28 // DCThunk | 0 | 32 | |
| 29 // handler | 32 | 8 | |
| 30 // userdata | 40 | 8 | |
| 31 | |
| 32 #include "../portasm/portasm-arm.S" | |
| 33 | |
| 34 .align 4 | |
| 35 GLOBAL_C(dcCallbackThunkEntry) | |
| 36 ENTRY_C(dcCallbackThunkEntry) | |
| 37 | |
| 38 // input: | |
| 39 // x9: DCCallback* pcb | |
| 40 // x0..x7 ?? GP regs | |
| 41 // d0..d7 ?? FP/SIMD regs | |
| 42 // sp... ?? arguments on stack | |
| 43 // | |
| 44 // locals: | |
| 45 // type off size | |
| 46 // ---------|------|------ | |
| 47 // Frame 0 16 | |
| 48 // DCArgs 16 168 | |
| 49 // DCValue 184 16 | |
| 50 // | |
| 51 // size 200 | |
| 52 // aligned 208 | |
| 53 // | |
| 54 | |
| 55 // locals: | |
| 56 // x10: sp | |
| 57 // x11: DCArgs* args | |
| 58 | |
| 59 mov x10, sp | |
| 60 stp x29, x30, [sp, #-208 ]! | |
| 61 mov x29, sp | |
| 62 | |
| 63 add x11, x29 , #16 | |
| 64 | |
| 65 // save integer registers | |
| 66 | |
| 67 stp x0, x1, [x11, #0 ] | |
| 68 stp x2, x3, [x11, #16] | |
| 69 stp x4, x5, [x11, #32] | |
| 70 stp x6, x7, [x11, #48] | |
| 71 | |
| 72 stp d0, d1, [x11, #64] | |
| 73 stp d2, d3, [x11, #80] | |
| 74 stp d4, d5, [x11, #96] | |
| 75 stp d6, d7, [x11, #112] | |
| 76 | |
| 77 eor x12, x12, x12 | |
| 78 stp x10,x12,[x11, #128] // sp=sp, i=0, f=0 | |
| 79 | |
| 80 str x12, [x11, #144] // s=0, reserved=0 | |
| 81 | |
| 82 | |
| 83 // call handler: | |
| 84 // args: | |
| 85 // x0: DCCallback* pcb | |
| 86 // x1: DCArgs* args | |
| 87 // x2: DCValue* result | |
| 88 // x3: void* userdata | |
| 89 | |
| 90 mov x0 , x9 | |
| 91 add x1 , x29 , #16 | |
| 92 add x2 , x29 , #184 | |
| 93 ldr x3 , [x9 , #40] | |
| 94 | |
| 95 ldr x11, [x9 , #32] | |
| 96 blr x11 | |
| 97 | |
| 98 and w0, w0, #255 | |
| 99 cmp w0, 'f' | |
| 100 b.eq .retf | |
| 101 cmp w0, 'd' | |
| 102 b.eq .retf | |
| 103 | |
| 104 .reti: | |
| 105 ldr x0, [x29, #184] | |
| 106 b .ret | |
| 107 .retf: | |
| 108 ldr d0, [x29, #184] | |
| 109 .ret: | |
| 110 ldp x29, x30, [sp], #208 | |
| 111 ret |