| 1 | /* @(#) pf_clib.c 96/12/18 1.12 */\r |
| 2 | /***************************************************************\r |
| 3 | ** Duplicate functions from stdlib for PForth based on 'C'\r |
| 4 | **\r |
| 5 | ** This code duplicates some of the code in the 'C' lib\r |
| 6 | ** because it reduces the dependency on foreign libraries\r |
| 7 | ** for monitor mode where no OS is available.\r |
| 8 | **\r |
| 9 | ** Author: Phil Burk\r |
| 10 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom\r |
| 11 | **\r |
| 12 | ** The pForth software code is dedicated to the public domain,\r |
| 13 | ** and any third party may reproduce, distribute and modify\r |
| 14 | ** the pForth software code or any derivative works thereof\r |
| 15 | ** without any compensation or license. The pForth software\r |
| 16 | ** code is provided on an "as is" basis without any warranty\r |
| 17 | ** of any kind, including, without limitation, the implied\r |
| 18 | ** warranties of merchantability and fitness for a particular\r |
| 19 | ** purpose and their equivalents under the laws of any jurisdiction.\r |
| 20 | **\r |
| 21 | ****************************************************************\r |
| 22 | ** 961124 PLB Advance pointers in pfCopyMemory() and pfSetMemory()\r |
| 23 | ***************************************************************/\r |
| 24 | \r |
| 25 | #include "pf_all.h"\r |
| 26 | \r |
| 27 | #ifdef PF_NO_CLIB\r |
| 28 | /* Count chars until NUL. Replace strlen() */\r |
| 29 | #define NUL ((char) 0)\r |
| 30 | cell_t pfCStringLength( const char *s )\r |
| 31 | {\r |
| 32 | cell_t len = 0;\r |
| 33 | while( *s++ != NUL ) len++;\r |
| 34 | return len;\r |
| 35 | }\r |
| 36 | \r |
| 37 | /* void *memset (void *s, cell_t c, size_t n); */\r |
| 38 | void *pfSetMemory( void *s, cell_t c, cell_t n )\r |
| 39 | {\r |
| 40 | uint8_t *p = s, byt = (uint8_t) c;\r |
| 41 | while( (n--) > 0) *p++ = byt;\r |
| 42 | return s;\r |
| 43 | }\r |
| 44 | \r |
| 45 | /* void *memccpy (void *s1, const void *s2, cell_t c, size_t n); */\r |
| 46 | void *pfCopyMemory( void *s1, const void *s2, cell_t n)\r |
| 47 | {\r |
| 48 | uint8_t *p1 = s1;\r |
| 49 | const uint8_t *p2 = s2;\r |
| 50 | while( (n--) > 0) *p1++ = *p2++;\r |
| 51 | return s1;\r |
| 52 | }\r |
| 53 | \r |
| 54 | #endif /* PF_NO_CLIB */\r |
| 55 | \r |
| 56 | char pfCharToUpper( char c )\r |
| 57 | {\r |
| 58 | return (char) ( ((c>='a') && (c<='z')) ? (c - ('a' - 'A')) : c );\r |
| 59 | }\r |
| 60 | \r |
| 61 | char pfCharToLower( char c )\r |
| 62 | {\r |
| 63 | return (char) ( ((c>='A') && (c<='Z')) ? (c + ('a' - 'A')) : c );\r |
| 64 | }\r |