fixes, graphic acceleration commands, upscaling pixels

crsn_stdio/Cargo.toml

@@ -9,3 +9,4 @@ edition = "2018"
 [dependencies]
 crsn = { path = "../crsn" }
 libc = "0.2.79"
+log = "0.4.11"

crsn_stdio/src/lib.rs

@@ -1,3 +1,6 @@
+#[macro_use]
+extern crate log;
+
 use crsn::asm::data::literal::Value;
 use crsn::asm::error::CrsnError;
 use crsn::asm::instr::op::OpKind;
@@ -134,6 +137,7 @@ impl StdioOps {
 
 impl Drop for StdioOps {
     fn drop(&mut self) {
+        debug!("stdin restore");
         // Un-break the terminal
         if let Some(tio) = self.old_tio.take() {
             let _ = unsafe { libc::tcsetattr(libc::STDIN_FILENO, libc::TCSANOW, &tio) };