URL
https://opencores.org/ocsvn/forwardcom/forwardcom/trunk
[/] [forwardcom/] [libraries/] [print_string_light.as] - Blame information for rev 160
Go to most recent revision |
Details |
Compare with Previous |
View Log
Line No. |
Rev |
Author |
Line |
1 |
99 |
Agner |
/********************************* print_string_light.as *****************************
|
2 |
|
|
* Author: Agner Fog
|
3 |
|
|
* date created: 2021-05-16
|
4 |
|
|
* Last modified: 2021-05-16
|
5 |
|
|
* Version: 1.11
|
6 |
|
|
* Project: ForwardCom library libc_light.li
|
7 |
|
|
* Description: puts: print a string to stdout. Does not append linefeed
|
8 |
|
|
* This version is for CPUs with limited capabilities
|
9 |
|
|
* C declaration: const char * print_string (const char * str);
|
10 |
|
|
*
|
11 |
|
|
* Copyright 2021 GNU General Public License http://www.gnu.org/licenses
|
12 |
|
|
******************************************************************************/
|
13 |
|
|
|
14 |
|
|
code section execute align = 4 // code section
|
15 |
|
|
|
16 |
|
|
// Prints a string to stdout. Same as _puts, but does not append newline
|
17 |
|
|
// Returns a pointer to the first character after the string
|
18 |
|
|
|
19 |
|
|
_print_string function public reguse=3,0
|
20 |
|
|
if (int64 r0 != 0) { // check for null pointer
|
21 |
|
|
while (true) { // loop through string
|
22 |
|
|
int8 r1 = [r0] // read character
|
23 |
|
|
int64 r0++ // next character
|
24 |
|
|
if (int8 r1 == 0) {break} // end of string
|
25 |
|
|
int8 output(r1, r1, 10); // output character
|
26 |
|
|
}
|
27 |
|
|
}
|
28 |
|
|
return
|
29 |
|
|
_print_string end
|
30 |
|
|
|
31 |
|
|
|
32 |
|
|
code end
|
© copyright 1999-2024
OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.