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Implement ABORT + QUIT

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This commit is contained in:
Remko Tronçon 2019-03-12 14:26:38 +01:00
parent 2e344baf31
commit 7920432071
3 changed files with 24 additions and 2 deletions
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7
src/shell/WAForth.js
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@ -112,7 +112,12 @@ class WAForth {
run(s) {
this.read(s);
return this.core.exports.interpret();
try {
return this.core.exports.interpret();
} catch (e) {
// Exceptions thrown from the core means QUIT or ABORT is called, or an error
// has occurred. Assume what has been done has been done, and ignore here.
}
}
}

6
src/shell/index.js
View file

@ -28,7 +28,11 @@ function prompt() {
$el.html($el.html().replace(/\n$/, ""));
forth.run(input);
jqconsole.Write(outputBuffer.join(""), "jqconsole-output");
let output = outputBuffer.join("");
if (output.length === 0) {
output = "\n";
}
jqconsole.Write(output, "jqconsole-output");
outputBuffer = [];
prompt();
});

13
src/waforth.wat
View file

@ -585,6 +585,12 @@
(i32.load (i32.load (get_local $btos)))))
(!def_word "@" "$@")
;; 6.1.0670 ABORT
(func $ABORT
(set_global $tos (i32.const !stackBase))
(call $QUIT))
(!def_word "ABORT" "$ABORT")
;; 6.1.0690
(func $ABS
(local $btos i32)
@ -1012,6 +1018,13 @@
(call $compileCall (get_local $findToken)))
(!def_word "POSTPONE" "$POSTPONE" !fImmediate)
;; 6.1.2050
(func $QUIT
(set_global $tors (i32.const !returnStackBase))
(set_global $sourceID (i32.const 0))
(unreachable))
(!def_word "QUIT" "$QUIT")
;; 6.1.2060
(func $R>
(set_global $tors (i32.sub (get_global $tors) (i32.const 4)))