| /* Conversion between ISO 8859-1 and IBM037. |
| |
| This module uses the Z900 variant of the Translate One To One |
| instruction. |
| Copyright (C) 1997-2009 Free Software Foundation, Inc. |
| |
| Author: Andreas Krebbel <Andreas.Krebbel@de.ibm.com> |
| Based on the work by Ulrich Drepper <drepper@cygnus.com>, 1997. |
| |
| Thanks to Daniel Appich who covered the relevant performance work |
| in his diploma thesis. |
| |
| This is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| This is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <dlfcn.h> |
| #include <stdint.h> |
| |
| // conversion table from ISO-8859-1 to IBM037 |
| static const unsigned char table_iso8859_1_to_cp037[256] |
| __attribute__ ((aligned (8))) = |
| { |
| [0x00] = 0x00, [0x01] = 0x01, [0x02] = 0x02, [0x03] = 0x03, |
| [0x04] = 0x37, [0x05] = 0x2D, [0x06] = 0x2E, [0x07] = 0x2F, |
| [0x08] = 0x16, [0x09] = 0x05, [0x0A] = 0x25, [0x0B] = 0x0B, |
| [0x0C] = 0x0C, [0x0D] = 0x0D, [0x0E] = 0x0E, [0x0F] = 0x0F, |
| [0x10] = 0x10, [0x11] = 0x11, [0x12] = 0x12, [0x13] = 0x13, |
| [0x14] = 0x3C, [0x15] = 0x3D, [0x16] = 0x32, [0x17] = 0x26, |
| [0x18] = 0x18, [0x19] = 0x19, [0x1A] = 0x3F, [0x1B] = 0x27, |
| [0x1C] = 0x1C, [0x1D] = 0x1D, [0x1E] = 0x1E, [0x1F] = 0x1F, |
| [0x20] = 0x40, [0x21] = 0x5A, [0x22] = 0x7F, [0x23] = 0x7B, |
| [0x24] = 0x5B, [0x25] = 0x6C, [0x26] = 0x50, [0x27] = 0x7D, |
| [0x28] = 0x4D, [0x29] = 0x5D, [0x2A] = 0x5C, [0x2B] = 0x4E, |
| [0x2C] = 0x6B, [0x2D] = 0x60, [0x2E] = 0x4B, [0x2F] = 0x61, |
| [0x30] = 0xF0, [0x31] = 0xF1, [0x32] = 0xF2, [0x33] = 0xF3, |
| [0x34] = 0xF4, [0x35] = 0xF5, [0x36] = 0xF6, [0x37] = 0xF7, |
| [0x38] = 0xF8, [0x39] = 0xF9, [0x3A] = 0x7A, [0x3B] = 0x5E, |
| [0x3C] = 0x4C, [0x3D] = 0x7E, [0x3E] = 0x6E, [0x3F] = 0x6F, |
| [0x40] = 0x7C, [0x41] = 0xC1, [0x42] = 0xC2, [0x43] = 0xC3, |
| [0x44] = 0xC4, [0x45] = 0xC5, [0x46] = 0xC6, [0x47] = 0xC7, |
| [0x48] = 0xC8, [0x49] = 0xC9, [0x4A] = 0xD1, [0x4B] = 0xD2, |
| [0x4C] = 0xD3, [0x4D] = 0xD4, [0x4E] = 0xD5, [0x4F] = 0xD6, |
| [0x50] = 0xD7, [0x51] = 0xD8, [0x52] = 0xD9, [0x53] = 0xE2, |
| [0x54] = 0xE3, [0x55] = 0xE4, [0x56] = 0xE5, [0x57] = 0xE6, |
| [0x58] = 0xE7, [0x59] = 0xE8, [0x5A] = 0xE9, [0x5B] = 0xBA, |
| [0x5C] = 0xE0, [0x5D] = 0xBB, [0x5E] = 0xB0, [0x5F] = 0x6D, |
| [0x60] = 0x79, [0x61] = 0x81, [0x62] = 0x82, [0x63] = 0x83, |
| [0x64] = 0x84, [0x65] = 0x85, [0x66] = 0x86, [0x67] = 0x87, |
| [0x68] = 0x88, [0x69] = 0x89, [0x6A] = 0x91, [0x6B] = 0x92, |
| [0x6C] = 0x93, [0x6D] = 0x94, [0x6E] = 0x95, [0x6F] = 0x96, |
| [0x70] = 0x97, [0x71] = 0x98, [0x72] = 0x99, [0x73] = 0xA2, |
| [0x74] = 0xA3, [0x75] = 0xA4, [0x76] = 0xA5, [0x77] = 0xA6, |
| [0x78] = 0xA7, [0x79] = 0xA8, [0x7A] = 0xA9, [0x7B] = 0xC0, |
| [0x7C] = 0x4F, [0x7D] = 0xD0, [0x7E] = 0xA1, [0x7F] = 0x07, |
| [0x80] = 0x20, [0x81] = 0x21, [0x82] = 0x22, [0x83] = 0x23, |
| [0x84] = 0x24, [0x85] = 0x15, [0x86] = 0x06, [0x87] = 0x17, |
| [0x88] = 0x28, [0x89] = 0x29, [0x8A] = 0x2A, [0x8B] = 0x2B, |
| [0x8C] = 0x2C, [0x8D] = 0x09, [0x8E] = 0x0A, [0x8F] = 0x1B, |
| [0x90] = 0x30, [0x91] = 0x31, [0x92] = 0x1A, [0x93] = 0x33, |
| [0x94] = 0x34, [0x95] = 0x35, [0x96] = 0x36, [0x97] = 0x08, |
| [0x98] = 0x38, [0x99] = 0x39, [0x9A] = 0x3A, [0x9B] = 0x3B, |
| [0x9C] = 0x04, [0x9D] = 0x14, [0x9E] = 0x3E, [0x9F] = 0xFF, |
| [0xA0] = 0x41, [0xA1] = 0xAA, [0xA2] = 0x4A, [0xA3] = 0xB1, |
| [0xA4] = 0x9F, [0xA5] = 0xB2, [0xA6] = 0x6A, [0xA7] = 0xB5, |
| [0xA8] = 0xBD, [0xA9] = 0xB4, [0xAA] = 0x9A, [0xAB] = 0x8A, |
| [0xAC] = 0x5F, [0xAD] = 0xCA, [0xAE] = 0xAF, [0xAF] = 0xBC, |
| [0xB0] = 0x90, [0xB1] = 0x8F, [0xB2] = 0xEA, [0xB3] = 0xFA, |
| [0xB4] = 0xBE, [0xB5] = 0xA0, [0xB6] = 0xB6, [0xB7] = 0xB3, |
| [0xB8] = 0x9D, [0xB9] = 0xDA, [0xBA] = 0x9B, [0xBB] = 0x8B, |
| [0xBC] = 0xB7, [0xBD] = 0xB8, [0xBE] = 0xB9, [0xBF] = 0xAB, |
| [0xC0] = 0x64, [0xC1] = 0x65, [0xC2] = 0x62, [0xC3] = 0x66, |
| [0xC4] = 0x63, [0xC5] = 0x67, [0xC6] = 0x9E, [0xC7] = 0x68, |
| [0xC8] = 0x74, [0xC9] = 0x71, [0xCA] = 0x72, [0xCB] = 0x73, |
| [0xCC] = 0x78, [0xCD] = 0x75, [0xCE] = 0x76, [0xCF] = 0x77, |
| [0xD0] = 0xAC, [0xD1] = 0x69, [0xD2] = 0xED, [0xD3] = 0xEE, |
| [0xD4] = 0xEB, [0xD5] = 0xEF, [0xD6] = 0xEC, [0xD7] = 0xBF, |
| [0xD8] = 0x80, [0xD9] = 0xFD, [0xDA] = 0xFE, [0xDB] = 0xFB, |
| [0xDC] = 0xFC, [0xDD] = 0xAD, [0xDE] = 0xAE, [0xDF] = 0x59, |
| [0xE0] = 0x44, [0xE1] = 0x45, [0xE2] = 0x42, [0xE3] = 0x46, |
| [0xE4] = 0x43, [0xE5] = 0x47, [0xE6] = 0x9C, [0xE7] = 0x48, |
| [0xE8] = 0x54, [0xE9] = 0x51, [0xEA] = 0x52, [0xEB] = 0x53, |
| [0xEC] = 0x58, [0xED] = 0x55, [0xEE] = 0x56, [0xEF] = 0x57, |
| [0xF0] = 0x8C, [0xF1] = 0x49, [0xF2] = 0xCD, [0xF3] = 0xCE, |
| [0xF4] = 0xCB, [0xF5] = 0xCF, [0xF6] = 0xCC, [0xF7] = 0xE1, |
| [0xF8] = 0x70, [0xF9] = 0xDD, [0xFA] = 0xDE, [0xFB] = 0xDB, |
| [0xFC] = 0xDC, [0xFD] = 0x8D, [0xFE] = 0x8E, [0xFF] = 0xDF |
| }; |
| |
| // conversion table from IBM037 to ISO-8859-1 |
| static const unsigned char table_cp037_iso8859_1[256] |
| __attribute__ ((aligned (8))) = |
| { |
| [0x00] = 0x00, [0x01] = 0x01, [0x02] = 0x02, [0x03] = 0x03, |
| [0x04] = 0x9C, [0x05] = 0x09, [0x06] = 0x86, [0x07] = 0x7F, |
| [0x08] = 0x97, [0x09] = 0x8D, [0x0A] = 0x8E, [0x0B] = 0x0B, |
| [0x0C] = 0x0C, [0x0D] = 0x0D, [0x0E] = 0x0E, [0x0F] = 0x0F, |
| [0x10] = 0x10, [0x11] = 0x11, [0x12] = 0x12, [0x13] = 0x13, |
| [0x14] = 0x9D, [0x15] = 0x85, [0x16] = 0x08, [0x17] = 0x87, |
| [0x18] = 0x18, [0x19] = 0x19, [0x1A] = 0x92, [0x1B] = 0x8F, |
| [0x1C] = 0x1C, [0x1D] = 0x1D, [0x1E] = 0x1E, [0x1F] = 0x1F, |
| [0x20] = 0x80, [0x21] = 0x81, [0x22] = 0x82, [0x23] = 0x83, |
| [0x24] = 0x84, [0x25] = 0x0A, [0x26] = 0x17, [0x27] = 0x1B, |
| [0x28] = 0x88, [0x29] = 0x89, [0x2A] = 0x8A, [0x2B] = 0x8B, |
| [0x2C] = 0x8C, [0x2D] = 0x05, [0x2E] = 0x06, [0x2F] = 0x07, |
| [0x30] = 0x90, [0x31] = 0x91, [0x32] = 0x16, [0x33] = 0x93, |
| [0x34] = 0x94, [0x35] = 0x95, [0x36] = 0x96, [0x37] = 0x04, |
| [0x38] = 0x98, [0x39] = 0x99, [0x3A] = 0x9A, [0x3B] = 0x9B, |
| [0x3C] = 0x14, [0x3D] = 0x15, [0x3E] = 0x9E, [0x3F] = 0x1A, |
| [0x40] = 0x20, [0x41] = 0xA0, [0x42] = 0xE2, [0x43] = 0xE4, |
| [0x44] = 0xE0, [0x45] = 0xE1, [0x46] = 0xE3, [0x47] = 0xE5, |
| [0x48] = 0xE7, [0x49] = 0xF1, [0x4A] = 0xA2, [0x4B] = 0x2E, |
| [0x4C] = 0x3C, [0x4D] = 0x28, [0x4E] = 0x2B, [0x4F] = 0x7C, |
| [0x50] = 0x26, [0x51] = 0xE9, [0x52] = 0xEA, [0x53] = 0xEB, |
| [0x54] = 0xE8, [0x55] = 0xED, [0x56] = 0xEE, [0x57] = 0xEF, |
| [0x58] = 0xEC, [0x59] = 0xDF, [0x5A] = 0x21, [0x5B] = 0x24, |
| [0x5C] = 0x2A, [0x5D] = 0x29, [0x5E] = 0x3B, [0x5F] = 0xAC, |
| [0x60] = 0x2D, [0x61] = 0x2F, [0x62] = 0xC2, [0x63] = 0xC4, |
| [0x64] = 0xC0, [0x65] = 0xC1, [0x66] = 0xC3, [0x67] = 0xC5, |
| [0x68] = 0xC7, [0x69] = 0xD1, [0x6A] = 0xA6, [0x6B] = 0x2C, |
| [0x6C] = 0x25, [0x6D] = 0x5F, [0x6E] = 0x3E, [0x6F] = 0x3F, |
| [0x70] = 0xF8, [0x71] = 0xC9, [0x72] = 0xCA, [0x73] = 0xCB, |
| [0x74] = 0xC8, [0x75] = 0xCD, [0x76] = 0xCE, [0x77] = 0xCF, |
| [0x78] = 0xCC, [0x79] = 0x60, [0x7A] = 0x3A, [0x7B] = 0x23, |
| [0x7C] = 0x40, [0x7D] = 0x27, [0x7E] = 0x3D, [0x7F] = 0x22, |
| [0x80] = 0xD8, [0x81] = 0x61, [0x82] = 0x62, [0x83] = 0x63, |
| [0x84] = 0x64, [0x85] = 0x65, [0x86] = 0x66, [0x87] = 0x67, |
| [0x88] = 0x68, [0x89] = 0x69, [0x8A] = 0xAB, [0x8B] = 0xBB, |
| [0x8C] = 0xF0, [0x8D] = 0xFD, [0x8E] = 0xFE, [0x8F] = 0xB1, |
| [0x90] = 0xB0, [0x91] = 0x6A, [0x92] = 0x6B, [0x93] = 0x6C, |
| [0x94] = 0x6D, [0x95] = 0x6E, [0x96] = 0x6F, [0x97] = 0x70, |
| [0x98] = 0x71, [0x99] = 0x72, [0x9A] = 0xAA, [0x9B] = 0xBA, |
| [0x9C] = 0xE6, [0x9D] = 0xB8, [0x9E] = 0xC6, [0x9F] = 0xA4, |
| [0xA0] = 0xB5, [0xA1] = 0x7E, [0xA2] = 0x73, [0xA3] = 0x74, |
| [0xA4] = 0x75, [0xA5] = 0x76, [0xA6] = 0x77, [0xA7] = 0x78, |
| [0xA8] = 0x79, [0xA9] = 0x7A, [0xAA] = 0xA1, [0xAB] = 0xBF, |
| [0xAC] = 0xD0, [0xAD] = 0xDD, [0xAE] = 0xDE, [0xAF] = 0xAE, |
| [0xB0] = 0x5E, [0xB1] = 0xA3, [0xB2] = 0xA5, [0xB3] = 0xB7, |
| [0xB4] = 0xA9, [0xB5] = 0xA7, [0xB6] = 0xB6, [0xB7] = 0xBC, |
| [0xB8] = 0xBD, [0xB9] = 0xBE, [0xBA] = 0x5B, [0xBB] = 0x5D, |
| [0xBC] = 0xAF, [0xBD] = 0xA8, [0xBE] = 0xB4, [0xBF] = 0xD7, |
| [0xC0] = 0x7B, [0xC1] = 0x41, [0xC2] = 0x42, [0xC3] = 0x43, |
| [0xC4] = 0x44, [0xC5] = 0x45, [0xC6] = 0x46, [0xC7] = 0x47, |
| [0xC8] = 0x48, [0xC9] = 0x49, [0xCA] = 0xAD, [0xCB] = 0xF4, |
| [0xCC] = 0xF6, [0xCD] = 0xF2, [0xCE] = 0xF3, [0xCF] = 0xF5, |
| [0xD0] = 0x7D, [0xD1] = 0x4A, [0xD2] = 0x4B, [0xD3] = 0x4C, |
| [0xD4] = 0x4D, [0xD5] = 0x4E, [0xD6] = 0x4F, [0xD7] = 0x50, |
| [0xD8] = 0x51, [0xD9] = 0x52, [0xDA] = 0xB9, [0xDB] = 0xFB, |
| [0xDC] = 0xFC, [0xDD] = 0xF9, [0xDE] = 0xFA, [0xDF] = 0xFF, |
| [0xE0] = 0x5C, [0xE1] = 0xF7, [0xE2] = 0x53, [0xE3] = 0x54, |
| [0xE4] = 0x55, [0xE5] = 0x56, [0xE6] = 0x57, [0xE7] = 0x58, |
| [0xE8] = 0x59, [0xE9] = 0x5A, [0xEA] = 0xB2, [0xEB] = 0xD4, |
| [0xEC] = 0xD6, [0xED] = 0xD2, [0xEE] = 0xD3, [0xEF] = 0xD5, |
| [0xF0] = 0x30, [0xF1] = 0x31, [0xF2] = 0x32, [0xF3] = 0x33, |
| [0xF4] = 0x34, [0xF5] = 0x35, [0xF6] = 0x36, [0xF7] = 0x37, |
| [0xF8] = 0x38, [0xF9] = 0x39, [0xFA] = 0xB3, [0xFB] = 0xDB, |
| [0xFC] = 0xDC, [0xFD] = 0xD9, [0xFE] = 0xDA, [0xFF] = 0x9F |
| }; |
| |
| /* Definitions used in the body of the `gconv' function. */ |
| #define CHARSET_NAME "ISO-8859-1//" |
| #define FROM_LOOP iso8859_1_to_cp037_z900 |
| #define TO_LOOP cp037_to_iso8859_1_z900 |
| #define DEFINE_INIT 1 |
| #define DEFINE_FINI 1 |
| #define MIN_NEEDED_FROM 1 |
| #define MIN_NEEDED_TO 1 |
| |
| /* The Z900 variant of troo forces us to always specify a test |
| character which ends the translation. So if we run into the |
| situation where the translation has been interrupted due to the |
| test character we translate the character by hand and jump back |
| into the instruction. */ |
| |
| #define TROO_LOOP(TABLE) \ |
| { \ |
| register const unsigned char test asm ("0") = 0; \ |
| register const unsigned char *pTable asm ("1") = TABLE; \ |
| register unsigned char *pOutput asm ("2") = outptr; \ |
| register uint64_t length asm ("3"); \ |
| const unsigned char* pInput = inptr; \ |
| uint64_t tmp; \ |
| \ |
| length = (inend - inptr < outend - outptr \ |
| ? inend - inptr : outend - outptr); \ |
| \ |
| asm volatile ("0: \n\t" \ |
| " troo %0,%1 \n\t" \ |
| " jz 1f \n\t" \ |
| " jo 0b \n\t" \ |
| " llgc %3,0(%1) \n\t" \ |
| " la %3,0(%3,%4) \n\t" \ |
| " mvc 0(1,%0),0(%3) \n\t" \ |
| " aghi %1,1 \n\t" \ |
| " aghi %0,1 \n\t" \ |
| " aghi %2,-1 \n\t" \ |
| " j 0b \n\t" \ |
| "1: \n" \ |
| \ |
| : "+a" (pOutput), "+a" (pInput), "+d" (length), "=&a" (tmp) \ |
| : "a" (pTable), "d" (test) \ |
| : "cc"); \ |
| \ |
| inptr = pInput; \ |
| outptr = pOutput; \ |
| } |
| |
| /* First define the conversion function from ISO 8859-1 to CP037. */ |
| #define MIN_NEEDED_INPUT MIN_NEEDED_FROM |
| #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO |
| #define LOOPFCT FROM_LOOP |
| #define BODY TROO_LOOP (table_iso8859_1_to_cp037) |
| |
| #include <iconv/loop.c> |
| |
| |
| /* Next, define the conversion function from CP037 to ISO 8859-1. */ |
| #define MIN_NEEDED_INPUT MIN_NEEDED_TO |
| #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM |
| #define LOOPFCT TO_LOOP |
| #define BODY TROO_LOOP (table_cp037_iso8859_1); |
| |
| #include <iconv/loop.c> |
| |
| |
| /* Now define the toplevel functions. */ |
| #include <iconv/skeleton.c> |
