Source code
Revision control
Copy as Markdown
Other Tools
// A simple test case for memory.copy between different memories.
let i = wasmEvalText(
`(module
(memory $$mem0 (data "staubfaenger"))
(memory $$mem1 (data "\\ee\\22\\55\\ff"))
(memory $$mem2 (data "\\dd\\33\\66\\00"))
(memory $$mem3 (data "schnickschnack"))
(func (export "copy0to3") (param i32 i32 i32)
(memory.copy $$mem3 $$mem0
(local.get 0)
(local.get 1)
(local.get 2))
)
(func (export "copy3to0") (param i32 i32 i32)
(memory.copy $$mem0 $$mem3
(local.get 0)
(local.get 1)
(local.get 2))
)
(func (export "read0") (param i32) (result i32)
(i32.load8_u $$mem0 (local.get 0))
)
(func (export "read3") (param i32) (result i32)
(i32.load8_u $$mem3 (local.get 0))
)
)`);
i.exports.copy0to3(4, 5, 6);
let s = "";
for (let ix = 0; ix < 14; ix++) {
s = s + String.fromCharCode(i.exports.read3(ix));
}
i.exports.copy3to0(8, 2, 7);
s = s + "_";
for (let ix = 0; ix < 12; ix++) {
s = s + String.fromCharCode(i.exports.read0(ix));
}
assertEq(s, "schnfaengenack_staubfaehnfa");