Index
> Main > after FASMLIB v0.1 - where to continue? |
| which should be done first? | ||||||||||||||
|
||||||||||||||
| Total Votes : 17 |
| Author |
|
|
vid 18 Sep 2006, 13:04
hi, i have finnaly released FASMLIB v0.1. You can see it at http://board.flatassembler.net/topic.php?t=4696
it still contains several inefficiency problems 1. memory management on linux, which is done only via mmap(). That means smallest memory block is 4KB, eg. 100 dynamic strings takes 400KB. FASMLIB memory module is inteded to provide heap memory, but linux kernel doesn't have heap manager so we need to write our own. 2. string library is inefficient, doesn't have any compacting it's buffers after heavy use, reallocation is too often needed because string buffer size handling. but fasmlib also misses many things, mainly input from console. This involves several ascii->data conversion routines, and we must incorporate buffering of input data - again it may be considerable amount of work. |
|||
18 Sep 2006, 13:04 |
|
|
pelaillo 18 Sep 2006, 18:14
vid, I manage to have free time for a few days and i like to devote it to the fasmlib. Today I'm going to study your just released version.
I'll be glad to contribute with the heap management support. Do you have a preference (intended design)? |
|||
|
18 Sep 2006, 18:14 |
|
|
vid 18 Sep 2006, 21:49
great, thanks. i got some link about alloc/free from mrpink: http://www-128.ibm.com/developerworks/linux/library/l-memory/
it shows basic. for now, i only want very basic working heap managent. i want just linux version of mem.alloc and mem.free conforming to specs in doc/mem.txt. see my other procs for example of coding style, but that is NOT important (i anyway tend to edit all code myself. Their functionality could be something like in given example. if you don't have experiences with linux, you can build it on win32, that's no problem, it's actual code that interests me. Soup around it can be added anytime. Or you can even base your code on my mem.alloc, mem.realloc and mem.free, and name functions "heap.alloc" and "heap.free" - it really doesn't matter. thanks very much, ask me if you have any problems PS: tommorow i will be probably offline until at least 5 PM GMT+1  |
|||
|
18 Sep 2006, 21:49 |
|
|
mattst88 19 Sep 2006, 01:10
I would like to see support for SkyOS. I'm in charge of handing out Developer Access so you'd get access for free in a hurry if you say the word
Just post a short application here if you're interested. Thanks |
|||
|
19 Sep 2006, 01:10 |
|
|
vid 19 Sep 2006, 05:21
i was already discussing support for Dex4U OS. Generally, OS has to meet few things that FASMLIB awaits, and it is (roughly):
- flat mode - program is always above 10000h - file API must have open (for read/readwrite), create (overwriting/nonoverwriting, for read/readwrite), seek, read, write, close - since we don't have heap manager, mem API must have alloc(), realloc() free() (this is why Dex can't be supported yet) - API must have console output (in form roughly "output(buffer, size)") - and few more, probably supported |
|||
|
19 Sep 2006, 05:21 |
|
|
vid 24 Sep 2006, 19:03
mattst: can't find memory management API description in skyos docs
Last edited by vid on 24 Sep 2006, 19:26; edited 1 time in total |
|||
|
24 Sep 2006, 19:03 |
|
|
vid 24 Sep 2006, 19:21
to the topic: i have realized i can't go further in any of these two problems without having static string library - so this is my next goal, then i will rewrite dynamic string library to be built atop of it. then also conversion module will work with static strings.
|
|||
|
24 Sep 2006, 19:21 |
|
|
mattst88 25 Sep 2006, 22:04
vid: All SkyOS memory management functions are POSIX compliant. We've got alloc, realloc, free, etc + mmap and friends.
|
|||
|
25 Sep 2006, 22:04 |
|
|
vid 26 Sep 2006, 04:52
hmm, i thought POSIX compliant is brk() and mmap() only (Linux only has these). Or you have "libc" integrated into OS?
|
|||
|
26 Sep 2006, 04:52 |
|
|
mattst88 26 Sep 2006, 14:01
Ah, you are correct.
But yes, we do have a libc integrated into the OS (libsky) though there has been some discussion with replacing it all together with glibc. I think in either case the functions you need are available. |
|||
|
26 Sep 2006, 14:01 |
|
|
vid 28 Sep 2006, 08:24
matttst: please give me some FASM example how to work with SkyOS, or preferably some asm-coding-releated documentation. i've read you use ELF, but what about calling standard, name decoration etc.?
then i will try to prepare some testing version for it and send to you. or maybe i could make version that generally links to libc? |
|||
|
28 Sep 2006, 08:24 |
|
|
vid 28 Sep 2006, 08:26
by the way, this documentation looks little weird, you must confess
 |
|||
|
28 Sep 2006, 08:26 |
|
|
tom tobias 28 Sep 2006, 12:52
Quote:
just typical C documentation, therefore useless. |
|||
|
28 Sep 2006, 12:52 |
|
|
revolution 28 Sep 2006, 15:10
Quote: just typical C documentation, therefore useless. |
|||
|
28 Sep 2006, 15:10 |
|
|
mattst88 28 Sep 2006, 23:20
Here's a list of syscalls:
Code: _sys_open = 0 _sys_close = 1 _sys_os_read = 2 _sys_write = 3 _sys_lseek = 4 _os_exit = 5 _sys_sysinfo = 6 _sys_set_quantum = 7 _sys_socket = 8 _sys_bind = 9 _sys_accept = 10 _sys_dup = 11 _sys_dup2 = 12 _sys_connect = 13 _sys_spawn = 14 _sys_findfirst = 15 _sys_findnext = 16 _sys_chdir = 17 _sys_mount = 18 _sys_umount = 19 _sys_getcwd = 20 _sys_brk = 21 _sys_msgbox = 22 _sys_ioctl = 23 _sys_getpos = 24 _sys_module_alloc = 25 _sys_module_symbol_size = 26 _sys_module_get_symbolt = 27 _sys_module_init = 28 _sys_exec = 29 _call_v86 = 30 _os_image_info = 31 _sys_get_ticks = 32 _sys_sendto = 33 _sys_recvfrom = 34 _sys_get_curtime = 35 _sys_shutdown = 37 _sys_readdir = 38 _sys_cpe_set = 39 _sys_createdir = 40 _sys_ramdisk = 41 _sys_sync = 42 _sys_cache_configure = 43 _sys_module_unload = 44 _sys_semaphore = 45 _sys_SystemInfo = 46 _sys_getpid = 47 _sys_gettaskname = 48 _sys_get_usec_counter = 49 _sys_RSMGetNodeByName = 51 _sys_RSMEnumNodes = 52 _sys_send = 53 _sys_recv = 54 _sys_listen = 55 _sys_ioctlsocket = 56 _sys_sleeptaskusec = 57 _sys_fsinfo = 58 _sys_RSMSetEntry = 59 _sys_debug_attach = 60 _sys_debug_action = 61 _sys_stat = 70 _sys_notify = 71 _sys_RSMGetEntry = 72 _sys_RSMIterEntry = 73 _sys_RegistryLoad = 74 _sys_statfs = 75 _sys_unlink = 76 _sys_GetMeasurePoint = 77 _sys_GetMeasurePointByIndex = 78 _sys_GI_create_window = 100 _sys_GI_wait_message = 101 _sys_GI_rect = 102 _sys_GI_line = 103 _sys_GI_setpix = 104 _sys_GI_post_message = 105 _sys_GI_blit = 106 _sys_GI_text = 107 _sys_GI_set_timer = 108 _sys_GI_destroy_window = 109 _sys_GI_set_mouse_pointer = 110 _sys_GI_get_resolution = 111 _sys_GI_setup_GFX = 112 _sys_GI_compute_screen_coordinates = 113 _sys_GI_set_dimension = 114 _sys_GI_palette_set_logical = 115 _sys_GI_beginpaint = 116 _sys_GI_endpaint = 117 _sys_GI_window_info = 118 _sys_GI_get_next_handle = 119 _sys_GI_window_set_state = 120 _sys_GI_color_free = 121 _sys_GI_color_get = 122 _sys_GI_install_font = 123 _sys_GI_get_font = 124 _sys_GI_enum_fonts = 125 _sys_GI_capture_screen = 126 _sys_GI_sound_play = 127 _sys_GI_sound_setup = 128 _sys_GI_sound_max_buffer = 129 _sys_GI_query_message = 130 _sys_GI_redraw_window = 131 _sys_closesocket = 132 _sys_kill = 133 _sys_task_info = 134 _sys_wait_for_task_state = 135 _sys_syslog_set = 136 _sys_GI_copy_rect = 137 _sys_theme_get = 138 _sys_theme_set = 139 _sys_GI_mouse_get = 140 _sys_clipboard_add = 141 _sys_clipboard_get = 142 _sys_GI_kill_timer = 143 _sys_GI_circle = 144 _sys_SystemEventServices_Initialize = 145 _sys_style_set = 146 _sys_style_get = 147 _sys_DllInfo = 148 _sys_DllLoad = 149 _sys_DllUnload = 150 _sys_DllGetFunction = 151 _sys_GI_redraw_region = 152 _sys_TimeDebug = 153 _sys_GI_request_fullscreen = 154 _sys_SetKeyMap = 155 _sys_GI_GetResource = 156 _sys_GetNetStatistic = 157 _sys_GI_set_high_timer = 158 _sys_RSMGetNodeWithIndex = 159 _sys_getsockopt = 160 _sys_setsockopt = 161 _sys_select = 162 _sys_sethostname = 163 _sys_gethostname = 164 _sys_isatty = 165 _sys_fcntl = 166 _sys_getsockname = 167 _sys_getpeername = 168 _sys_SetCapture = 169 _sys_GI_set_focus = 170 _sys_debug_data = 171 _sys_GI_SetWindowCap = 172 _sys_mem_dump = 173 _sys_settaskstate = 174 _sys_tasklogging = 175 _sys_seek = 176 _sys_system_busy = 177 _sys_fork = 178 _sys_waitpid = 179 _sys_utime = 180 _sys_GI_GetWindow = 181 _sys_GI_GetDataMessage = 182 _sys_RegisterMessageDumper = 183 _sys_GI_SetWindowValue = 184 _sys_GI_Lock = 185 _sys_CheckBootOption = 186 _sys_GI_SetWindowBitmap = 187 _sys_GetBootKey = 188 _sys_GI_AddTransparentRect = 189 _sys_GI_GetMousePos = 190 _sys_pipe = 191 _sys_ShdMem = 192 _sys_GI_SetMousePointerImage = 193 _sys_NetFilterStart = 194 _sys_NetFilterGetNextPacket = 195 _sys_opendir = 196 _sys_closedir = 197 _sys_listener_register = 198 _sys_listener_unregister = 199 _sys_fs_initialize = 200 _sys_SendSignal = 201 _sys_SignalSetHandler = 202 _sys_return = 203 _sys_GetProcessImageName = 204 _sys_GI_SetWindowTitle = 205 _sys_GI_WindowAtPointer = 206 _sys_rewinddir = 207 _sys_tls_alloc = 208 _sys_tls_free = 209 _sys_tls_set = 210 _sys_tls_get = 211 _sys_SystemEvent = 212 _sys_profile = 213 _sys_RegistrySerializeEnable = 214 _sys_AttributeRead = 215 _sys_AttributeOpenDirectory = 216 _sys_AttributeCloseDirectory = 217 _sys_AttributeReadDirectory = 218 _sys_GetApplicationDirectory = 219 _sys_DataExchangePortRegister = 220 _sys_DataExchangePortConnect = 221 _sys_DataExchangePortRead = 222 _sys_DataExchangePortWrite = 223 _sys_DataExchangePortBlocking = 224 _sys_DataExchangePortRelease = 225 _sys_BootStep = 226 _sys_SwitchSecurityContext = 227 _sys_uname = 228 _sys_GI_SetMousePos = 229 _sys_GI_HideMouseCursor = 230 _sys_GetFSCapability = 231 _sys_dump_fd = 232 _sys_sigprocmask = 233 _sys_setpgid = 234 _sys_getpgid = 235 _sys_getppid = 236 _sys_MapVirtualKey = 237 _sys_GI_register_accelerator = 238 _sys_setsid = 239 _sys_getsid = 240 _sys_tweak = 241 _sys_GI_KeyStateGet = 242 _sys_GI_RaiseWindowToTop = 243 _sys_rename = 244 _sys_GI_InjectMouseAction = 245 _sys_GI_InjectKeyAction = 246 _sys_GI_GetMouseState = 247 _sys_MemoryMap = 248 _sys_MemoryUnMap = 249 _sys_usleep = 250 _sys_SemaphoreCreateEtc = 251 _sys_SemaphoreCreate = 252 _sys_SemaphoreDelete = 253 _sys_SemaphoreDeleteEtc = 254 _sys_SemaphoreAcquire = 255 _sys_SemaphoreAcquireEtc = 256 _sys_SemaphoreRelease = 257 _sys_SemaphoreReleaseEtc = 258 _sys_SemaphoreGetCount = 259 _sys_SemaphoreInfo = 260 _sys_DataExchangePortDataAvailable = 261 _sys_ThreadResume = 262 _sys_TaskInfo = 263 _sys_GI_PosInWindow = 264 _sys_MultipleObjectWait = 265 _sys_MemoryMapGet = 266 _sys_SystemGetVolumeInformation = 267 _sys_GetInternalOSVersion = 268 _sys_symlink = 269 _sys_readlink = 270 _sys_DataExchangePortWriteTo = 271 _sys_DataExchangePortWriteToBroadcast = 272 _sys_ThreadSetPriority = 273 _sys_SystemNotificationsGet = 274 _sys_sigsuspend = 275 _sys_GetPidOfTask = 276 _sys_alarm = 277 _sys_ThreadYield = 278 _sys_QueryOpen = 279 _sys_QueryClose = 280 _sys_QueryRead = 281 _sys_GetParentNode = 282 _sys_IndexCreate = 283 _sys_IndexRemove = 284 _sys_IndexOpen = 285 _sys_IndexRead = 286 _sys_IndexClose = 287 _sys_LastInputActivity = 288 _sys_GI_DirectAccess = 289 _sys_IsDebugKernel = 290 _sys_GetInternalBuildNumber = 291 _sys_TaskLogData = 292 _sys_DragAndDropServiceStart = 293 _sys_DragAndDropCancel = 294 _sys_DragAndDropDrop = 295 _sys_DragAndDropAllow = 296 _sys_GI_DragAndDropInProgress = 297 _sys_GI_DragAndDropDeny = 298 _sys_GI_GetWindowValue = 299 _sys_fsync = 300 _sys_DesktopComposing = 301 _sys_GI_TranslationChanged = 302 _sys_TaskFlagSet = 303 _sys_TaskFlagClear = 304 _sys_TaskFlagsGet = 305 _sys_gettimeofday = 306 _sys_GI_RegisterGestureExecutor = 307 _sys_TraceAction = 308 _sys_sysconf = 309 _sys_MemAreaAlloc = 310 _sys_MemAreaMap = 311 _sys_GI_WindowSetIcon = 312 _sys_GI_WindowGetIcon = 313 _sys_UpdateMeasurePoint = 314 _sys_AddMeasurePoint = 315 _sys_HeapAlloc = 316 _sys_HeapResize = 317 _sys_ThreadDetach = 318 _sys_SecurityContextCheckCurrentProcess = 319 _sys_GI_set_window_mouse_pointer = 320 _sys_listener_register_thread = 321 _sys_CheckFilePermission = 322 _sys_FilePermissionAuthentificate = 323 _sys_GetFunctionName = 324 _sys_mmap = 325 _sys_munmap = 326 _sys_KernelDebuggerEnter = 327 _sys_mprotect = 328 _sys_msync = 329 _sys_GI_WindowUnlink = 330 _sys_GI_WindowLink = 331 _sys_GI_compute_window_coordinates = 332 _sys_GI_WindowOwnSet = 333 _sys_GIWM_LayerCommand = 334 _sys_GI_WindowSetDefaultColor = 335 _sys_GI_WindowTransparency = 336 _sys_chmod = 337 _sys_exit_code = 338 _sys_getprocesspid = 339 _sys_clipboard_clear = 340 And here's a Hello World program: http://mattst88.no-ip.com:8181/skyos/?page=asm |
|||
|
28 Sep 2006, 23:20 |
|
|
vid 29 Sep 2006, 04:42
okay, just one note: what is register argument passing and preserving standard: eg. what about 5th and 6th argument? are they in ESI, EDI? Are reisteres preserved upon call?
|
|||
|
29 Sep 2006, 04:42 |
|
|
mattst88 29 Sep 2006, 22:15
In syscalls.h, it has this section:
Code: #define ASMFMT_0() #define ASMFMT_1(arg1) \ , "acdSD" (arg1) #define ASMFMT_2(arg1, arg2) \ , "adSD" (arg1), "c" (arg2) #define ASMFMT_3(arg1, arg2, arg3) \ , "aSD" (arg1), "c" (arg2), "d" (arg3) #define ASMFMT_4(arg1, arg2, arg3, arg4) \ , "aD" (arg1), "c" (arg2), "d" (arg3), "S" (arg4) #define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \ , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5) I would assume that the argument passing order is eax, ecx, edx, esi, edi from looking at that code. I'll see if I can get a definite answer from Robert (SkyOS's developer) and let you know the answer. |
|||
|
29 Sep 2006, 22:15 |
|
|
mattst88 30 Sep 2006, 18:22
Argument order is as follows:
ebx, ecx, edx, esi, edi All registers are preserved. Return is in eax. If you need 6 or more arguments, Robert says to make a structure and pass a pointer to it in the first argument. Anything other info you might need? |
|||
|
30 Sep 2006, 18:22 |
|
< Last Thread | Next Thread > |
Forum Rules:
|