From 096193f7ab65f1f128547a354acb6764734b4a11 Mon Sep 17 00:00:00 2001 From: Sebastien Bourdeauducq Date: Sun, 9 Jan 2022 10:51:10 +0800 Subject: [PATCH] demo: rewrite in Rust --- nac3standalone/demo/demo.c | 30 ------------------------------ nac3standalone/demo/demo.rs | 29 +++++++++++++++++++++++++++++ nac3standalone/demo/run_demo.sh | 2 +- 3 files changed, 30 insertions(+), 31 deletions(-) delete mode 100644 nac3standalone/demo/demo.c create mode 100644 nac3standalone/demo/demo.rs diff --git a/nac3standalone/demo/demo.c b/nac3standalone/demo/demo.c deleted file mode 100644 index ad19ee1eb..000000000 --- a/nac3standalone/demo/demo.c +++ /dev/null @@ -1,30 +0,0 @@ -#include -#include - -void output_int32(int x) { - printf("%d\n", x); -} - -void output_int64(long x) { - printf("%ld\n", x); -} - -void output_asciiart(int x) { - static char chars[] = " .,-:;i+hHM$*#@ "; - if(x < 0) { - putchar('\n'); - } else { - if(x < strlen(chars)) { - putchar(chars[x]); - } else { - printf("ERROR\n"); - } - } -} - -extern int run(); - -int main() { - run(); - return 0; -} diff --git a/nac3standalone/demo/demo.rs b/nac3standalone/demo/demo.rs new file mode 100644 index 000000000..a2794c9c4 --- /dev/null +++ b/nac3standalone/demo/demo.rs @@ -0,0 +1,29 @@ +#[no_mangle] +pub extern "C" fn output_int32(x: i32) { + println!("{}", x); +} + +#[no_mangle] +pub extern "C" fn output_int64(x: i64) { + println!("{}", x); +} + +#[no_mangle] +pub extern "C" fn output_asciiart(x: i32) { + let chars = " .,-:;i+hHM$*#@ "; + if x < 0 { + println!(""); + } else { + print!("{}", chars.chars().nth(x as usize).unwrap()); + } +} + +extern "C" { + fn run() -> i32; +} + +fn main() { + unsafe { + run(); + } +} diff --git a/nac3standalone/demo/run_demo.sh b/nac3standalone/demo/run_demo.sh index f4185e74b..f60dc10ba 100755 --- a/nac3standalone/demo/run_demo.sh +++ b/nac3standalone/demo/run_demo.sh @@ -9,5 +9,5 @@ fi rm -f *.o ../../target/release/nac3standalone $1 -clang -Wall -O2 -o $1.elf demo.c module.o -lm +rustc -o $1.elf demo.rs -Clink-arg=./module.o ./$1.elf