projects / vvhitespace / blame
| Commit | Line | Data |
|---|---|---|
| ae1f85a1 AT |
1 | #ifndef VVS_STDLIB_STRING |
| 2 | #define VVS_STDLIB_STRING | |
| 3 | ||
| 4 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
| 5 | @ Name: | |
| 6 | @ strlen (100000) | |
| 7 | @ Description: | |
| 8 | @ Counts number of words in a null-terminated string. | |
| 9 | @ Returned number does not include the null-terminator. | |
| 10 | @ Call Stack: | |
| 11 | @ pointer to first character <-- TOS | |
| 12 | @ Return Stack: | |
| 13 | @ number of words in string <-- TOS | |
| 14 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
| 15 | NSSVTSSSSSN | Mark: 100000 (strlen) | |
| 16 | ||
| 17 | @ Create a length counter. | |
| 18 | SSSSN | PUSH 0 | |
| 19 | SNT | SWAP | |
| 20 | ||
| 21 | @ Increment the counter (and pointer) on each pass through the loop. | |
| 22 | NSSVSSTSSSSSSSSSSSSSN | Mark: 00100000 00000000 | |
| 23 | SNS | DUP | |
| 24 | TTT | LOAD | |
| 25 | NTSSSTSSSSSSSSSSSSTN | BRZ > 00100000 00000001 | |
| 26 | SNT | SWAP | |
| 27 | SSSTN | PUSH 1 | |
| 28 | TSSS | ADD | |
| 29 | SNT | SWAP | |
| 30 | SSSTN | PUSH 1 | |
| 31 | TSSS | ADD | |
| 32 | NSNSSTSSSSSSSSSSSSSN | JMP > 00100000 00000000 | |
| 33 | ||
| 34 | @ Clean up and return. | |
| 35 | NSSVSSTSSSSSSSSSSSSTN | Mark: 00100000 00000001 | |
| 36 | SNN | DROP | |
| 37 | NTN | RTS | |
| 38 | ||
| 39 | #endif |