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implemented silent mode with s command line parameter

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Luxferre
2022-08-12 12:52:45 +03:00
parent cb4c12bfe9
commit 1b0379fbac
2 changed files with 16 additions and 8 deletions
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README.md
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@@ -135,7 +135,9 @@ See [FizzBuzz](examples/fizzbuzz.equi) for a more thorough example of how differ
Being a purely PC-oriented low-level runtime/programming environment, Equi has the reference implementation emulator/VM written in C (ANSI C89 standard), `equi.c`, compilable and runnable on all the systems supporting standard I/O. Note that, for portability reasons, this emulator:
- accepts the programs from standard input only,
- only implements three ports for `P` instruction: 0 as an echo port (returns passed parameters as corresponding result values), 1 as a random port (returns two random values in the results in the range between the two parameter values) and 2 as a CRC16 calculation port for a given memory location and its length, for any other port value it outputs its parameters to the standard error stream and puts three 0x0000 values back onto the stack,
- implements `s` command line parameter that runs the emulator in the silent mode without printing any welcome banners or interactive prompts,
- doesn't implement non-blocking key input (the `,` instruction is identical to blocking key input instruction `?`),
- sandboxes the `{` and `}` operations using the file with the name you supply on the compile time to the `PERSIST_FILE` constant. The file must already be created and accessible. If it doesn't exist, these operations will effectively do nothing except putting 0x0000 (success status) onto the stack.