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Implement S>D

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This commit is contained in:
Remko Tronçon 2019-03-13 20:01:17 +01:00
parent 92e3588a6e
commit 186ab96276
3 changed files with 33 additions and 0 deletions
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8
src/waforth.wat
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@ -1145,6 +1145,14 @@
(call $ALIGN))
(!def_word "S\"" "$Sq" !fImmediate)
;; 6.1.2170
(func $s-to-d
(local $btos i32)
(i64.store (tee_local $btos (i32.sub (get_global $tos) (i32.const 4)))
(i64.extend_s/i32 (i32.load (get_local $btos))))
(set_global $tos (i32.add (get_global $tos) (i32.const 4))))
(!def_word "S>D" "$s-to-d")
;; 6.1.2216
(func $SOURCE
(call $push (i32.const !inputBufferBase))

11
tests/standard-testsuite/core.f.js
View file

@ -270,5 +270,16 @@ T{ 1 ABS -> 1 }T
T{ -1 ABS -> 1 }T
T{ MIN-INT ABS -> MID-UINT+1 }T
\\ ------------------------------------------------------------------------
TESTING MULTIPLY: S>D * M* UM*
T{ 0 S>D -> 0 0 }T
T{ 1 S>D -> 1 0 }T
T{ 2 S>D -> 2 0 }T
T{ -1 S>D -> -1 -1 }T
T{ -2 S>D -> -2 -1 }T
T{ MIN-INT S>D -> MIN-INT -1 }T
T{ MAX-INT S>D -> MAX-INT 0 }T
`;

14
tests/tests.js
View file

@ -1350,6 +1350,20 @@ function loadTests(wasmModule, arrayToBase64) {
});
});
describe("S>D", () => {
it("should work with positive number", () => {
run("2 S>D");
expect(stack[0]).to.eql(2);
expect(stack[1]).to.eql(0);
});
it("should work with negative number", () => {
run("-2 S>D");
expect(stack[0]).to.eql(-2);
expect(stack[1]).to.eql(-1);
});
});
describe("system", () => {
beforeEach(() => {
core.loadPrelude();