Mercurial > sdl-ios-xcode
annotate src/hermes/x86_main.asm @ 1302:94643e9bad18
Date: Sat, 14 Jan 2006 15:16:01 -0500
From: Andrew Fuller
Subject: [SDL] [PATCH] ML-8866 PS2->USB converter
This converter seems to go by several names -- Super Dual Box, Dual
USB Joypad, and who knows what else. Also branded differently with
different colour cases, etc. But it seems to all be the same
internals. It is a common converter used for StepMania, with several
posts Googleable trying to make it work in Linux. I got mine
yesterday and wanted to play stepmania, so I went ahead and made a
crude patch for libsdl to split this baby into two logical joysticks.
A couple notes about the patch:
This patch works well for two dance mats hooked up and playing
stepmania, however the mapping of the other buttons may be off. I
have no joystick which uses all the buttons the converter reports, so
I have no way of testing them.
The name I used 0925:8866 which is the USB ID, and what SDLjoytest-GL
reported is the name, even though lsusb shows Wisegroup, Ltd MP-8866
Dual USB Joypad, and the existing virtual joystick mapping uses the
Wisegroup... name. Not sure why the discrepency.
I'm not subscribed to this mailing list, so please CC me on any
comments to this.
-Andrew
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jan 2006 14:59:43 +0000 |
| parents | 3202d727bb4b |
| children | 393092a3ebf6 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; x86 format converters for HERMES | |
| 3 ; Some routines Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) | |
| 4 ; This source code is licensed under the GNU LGPL | |
| 5 ; | |
| 6 ; Please refer to the file COPYING.LIB contained in the distribution for | |
| 7 ; licensing conditions | |
| 8 ; | |
| 9 ; Most routines are (c) Glenn Fiedler (ptc@gaffer.org), used with permission | |
| 10 ; | |
| 11 | |
| 12 BITS 32 | |
| 13 | |
| 14 GLOBAL _ConvertX86 | |
| 15 GLOBAL _x86return | |
| 16 | |
| 17 GLOBAL _Hermes_X86_CPU | |
| 18 | |
| 19 SECTION .text | |
| 20 | |
| 21 ;; _ConvertX86: | |
| 22 ;; [ESP+8] ConverterInfo* | |
| 23 ;; -------------------------------------------------------------------------- | |
| 24 ;; ConverterInfo (ebp+..) | |
| 25 ;; 0: void *s_pixels | |
| 26 ;; 4: int s_width | |
| 27 ;; 8: int s_height | |
| 28 ;; 12: int s_add | |
| 29 ;; 16: void *d_pixels | |
| 30 ;; 20: int d_width | |
| 31 ;; 24: int d_height | |
| 32 ;; 28: int d_add | |
| 33 ;; 32: void (*converter_function)() | |
| 34 ;; 36: int32 *lookup | |
| 35 | |
| 36 _ConvertX86: | |
| 37 push ebp | |
| 38 mov ebp,esp | |
| 39 | |
| 40 ; Save the registers used by the blitters, necessary for optimized code | |
| 41 pusha | |
| 42 | |
| 43 mov eax,[ebp+8] | |
| 44 | |
| 45 cmp dword [eax+4],BYTE 0 | |
| 46 je endconvert | |
| 47 | |
| 48 mov ebp,eax | |
| 49 | |
| 50 mov esi,[ebp+0] | |
| 51 mov edi,[ebp+16] | |
| 52 | |
| 53 y_loop: | |
| 54 mov ecx,[ebp+4] | |
| 55 | |
| 56 jmp [ebp+32] | |
| 57 | |
| 58 _x86return: | |
| 59 add esi,[ebp+12] | |
| 60 add edi,[ebp+28] | |
| 61 | |
| 62 dec dword [ebp+8] | |
| 63 jnz y_loop | |
| 64 | |
| 65 ; Restore the registers used by the blitters, necessary for optimized code | |
| 66 popa | |
| 67 | |
| 68 pop ebp | |
| 69 | |
| 70 endconvert: | |
| 71 ret | |
| 72 | |
| 73 | |
| 74 | |
| 75 ;; Hermes_X86_CPU returns the CPUID flags in eax | |
| 76 | |
| 77 _Hermes_X86_CPU: | |
| 78 pushfd | |
| 79 pop eax | |
| 80 | |
| 81 mov ecx,eax | |
| 82 | |
| 83 xor eax,040000h | |
| 84 push eax | |
| 85 | |
| 86 popfd | |
| 87 pushfd | |
| 88 | |
| 89 pop eax | |
| 90 xor eax,ecx | |
| 91 jz .L1 ; Processor is 386 | |
| 92 | |
| 93 push ecx | |
| 94 popfd | |
| 95 | |
| 96 mov eax,ecx | |
| 97 xor eax,200000h | |
| 98 | |
| 99 push eax | |
| 100 popfd | |
| 101 pushfd | |
| 102 | |
| 103 pop eax | |
| 104 xor eax,ecx | |
| 105 je .L1 | |
| 106 | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
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107 push ebx |
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parents:
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108 |
| 0 | 109 mov eax,1 |
| 110 cpuid | |
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parents:
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111 mov eax,edx |
| 0 | 112 |
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Ryan C. Gordon <icculus@icculus.org>
parents:
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113 pop ebx |
| 0 | 114 |
| 115 .L1: | |
| 116 ret | |
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Ryan C. Gordon <icculus@icculus.org>
parents:
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117 |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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118 %ifidn __OUTPUT_FORMAT__,elf |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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119 section .note.GNU-stack noalloc noexec nowrite progbits |
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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120 %endif |