lorenzo/sideros
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

[MODS/VM]: Make sure i*.store* truncate the value

Browse source
This commit is contained in:
luccie 2025-08-12 01:34:27 +02:00
parent 32fcc30608
commit 4cf7faa307
1 changed files with 6 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/mods/vm.zig
View file

@ -348,7 +348,7 @@ pub const Runtime = struct {
.f32_store => @panic("UNIMPLEMENTED"),
.f64_store => @panic("UNIMPLEMENTED"),
.i32_store8 => {
const val = std.mem.nativeToLittle(i8, @as(i8, @intCast(self.stack.pop().?.i32)));
const val = std.mem.nativeToLittle(i8, @as(i8, @truncate(self.stack.pop().?.i32)));
const offsetVal = self.stack.pop().?.i32;
if (offsetVal < 0) {
std.debug.panic("offsetVal is negative (val: {any})\n", .{offsetVal});
@ -359,7 +359,7 @@ pub const Runtime = struct {
@memcpy(self.memory[start..end], std.mem.asBytes(&val));
},
.i32_store16 => {
const val = std.mem.nativeToLittle(i16, @as(i16, @intCast(self.stack.pop().?.i32)));
const val = std.mem.nativeToLittle(i16, @as(i16, @truncate(self.stack.pop().?.i32)));
const offsetVal = self.stack.pop().?.i32;
if (offsetVal < 0) {
std.debug.panic("offsetVal is negative (val: {any})\n", .{offsetVal});
@ -370,7 +370,7 @@ pub const Runtime = struct {
@memcpy(self.memory[start..end], std.mem.asBytes(&val));
},
.i64_store8 => {
const val = std.mem.nativeToLittle(i8, @as(i8, @intCast(self.stack.pop().?.i64)));
const val = std.mem.nativeToLittle(i8, @as(i8, @truncate(self.stack.pop().?.i64)));
const offsetVal = self.stack.pop().?.i32;
if (offsetVal < 0) {
std.debug.panic("offsetVal is negative (val: {any})\n", .{offsetVal});
@ -381,7 +381,7 @@ pub const Runtime = struct {
@memcpy(self.memory[start..end], std.mem.asBytes(&val));
},
.i64_store16 => {
const val = std.mem.nativeToLittle(i16, @as(i16, @intCast(self.stack.pop().?.i64)));
const val = std.mem.nativeToLittle(i16, @as(i16, @truncate(self.stack.pop().?.i64)));
const offsetVal = self.stack.pop().?.i32;
if (offsetVal < 0) {
std.debug.panic("offsetVal is negative (val: {any})\n", .{offsetVal});
@ -392,7 +392,7 @@ pub const Runtime = struct {
@memcpy(self.memory[start..end], std.mem.asBytes(&val));
},
.i64_store32 => {
const val = std.mem.nativeToLittle(i32, @as(i32, @intCast(self.stack.pop().?.i64)));
const val = std.mem.nativeToLittle(i32, @as(i32, @truncate(self.stack.pop().?.i64)));
const offsetVal = self.stack.pop().?.i32;
if (offsetVal < 0) {
std.debug.panic("offsetVal is negative (val: {any})\n", .{offsetVal});
@ -924,6 +924,7 @@ pub const Runtime = struct {
}
try self.executeFrame(allocator, &frame);
// std.debug.print("Returning from {d}\n", .{function});
allocator.free(frame.locals);
},