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https://opencores.org/ocsvn/forwardcom/forwardcom/trunk
Subversion Repositories forwardcom
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- This comparison shows the changes necessary to convert path
/forwardcom/libraries
- from Rev 113 to Rev 114
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Rev 113 → Rev 114
/strcat.as
0,0 → 1,35
/********************************* strcat.as ******************************** |
* Author: Agner Fog |
* date created: 2018-03-25 |
* Last modified: 2018-03-25 |
* Version: 1.00 |
* Project: ForwardCom library libc.li |
* Description: strcat function. Copy zero-terminated string src to the end of string dest |
* C declaration: char *strcat(char *dest, const char *src) |
* |
* Copyright 2018 GNU General Public License http://www.gnu.org/licenses |
*****************************************************************************/ |
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extern _strlen: function, reguse = 0xF, 0x7 |
extern _memcpy: function, reguse = 0x1F, 1 |
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code section execute align = 4 |
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// r0 = destination |
// r1 = source |
_strcat function public reguse = 0xBF, 0x7 |
int64 r5 = r0 // save destination |
int64 r4 = r1 // save source |
call _strlen // length of destination |
int64 r7 = r5 + r0 // end of destination |
int64 r0 = r4 |
call _strlen // length of source |
int64 r2 = r0 + 1 // add 1 for terminating zero |
int64 r0 = r7 |
int64 r1 = r4 |
call _memcpy |
int64 r0 = r5 // return destination |
return |
_strcat end |
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code end |