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[MODS/VM]: Actually respect the difference between signed and unsigned

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luccie-cmd 2025-08-06 18:55:34 +02:00
parent 8282a299b1
commit 473c4aeffb
1 changed files with 13 additions and 13 deletions
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26
src/mods/vm.zig
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@ -378,8 +378,8 @@ pub const Runtime = struct {
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b <= a))) }); try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b <= a))) });
}, },
.i32_le_u => { .i32_le_u => {
const a = self.stack.pop().?.i32; const a = @as(u32, @intCast(self.stack.pop().?.i32));
const b = self.stack.pop().?.i32; const b = @as(u32, @intCast(self.stack.pop().?.i32));
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b <= a))) }); try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b <= a))) });
}, },
.i32_ge_s => { .i32_ge_s => {
@ -388,8 +388,8 @@ pub const Runtime = struct {
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b >= a))) }); try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b >= a))) });
}, },
.i32_ge_u => { .i32_ge_u => {
const a = self.stack.pop().?.i32; const a = @as(u32, @intCast(self.stack.pop().?.i32));
const b = self.stack.pop().?.i32; const b = @as(u32, @intCast(self.stack.pop().?.i32));
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b >= a))) }); try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b >= a))) });
}, },
@ -401,8 +401,8 @@ pub const Runtime = struct {
.i64_ne => @panic("UNIMPLEMENTED"), .i64_ne => @panic("UNIMPLEMENTED"),
.i64_lt_s => @panic("UNIMPLEMENTED"), .i64_lt_s => @panic("UNIMPLEMENTED"),
.i64_lt_u => { .i64_lt_u => {
const a = self.stack.pop().?.i64; const a = @as(u64, @intCast(self.stack.pop().?.i64));
const b = self.stack.pop().?.i64; const b = @as(u64, @intCast(self.stack.pop().?.i64));
try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b < a))) }); try self.stack.append(Value{ .i32 = @intCast(@as(u1, @bitCast(b < a))) });
}, },
.i64_gt_s => @panic("UNIMPLEMENTED"), .i64_gt_s => @panic("UNIMPLEMENTED"),
@ -457,12 +457,12 @@ pub const Runtime = struct {
}, },
.i32_rem_s => @panic("UNIMPLEMENTED"), .i32_rem_s => @panic("UNIMPLEMENTED"),
.i32_rem_u => { .i32_rem_u => {
const divisor = self.stack.pop().?.i32; const divisor = @as(u32, @intCast(self.stack.pop().?.i32));
const dividend = self.stack.pop().?.i32; const dividend = @as(u32, @intCast(self.stack.pop().?.i32));
if (divisor == 0) { if (divisor == 0) {
std.debug.panic("Divide by 0\n", .{}); std.debug.panic("Divide by 0\n", .{});
} }
try self.stack.append(Value{ .i32 = dividend - divisor * @divTrunc(dividend, divisor) }); try self.stack.append(Value{ .i32 = @intCast(dividend - divisor * @divTrunc(dividend, divisor)) });
}, },
.i32_or => { .i32_or => {
const a = self.stack.pop().?.i32; const a = self.stack.pop().?.i32;
@ -485,9 +485,9 @@ pub const Runtime = struct {
try self.stack.append(Value{ .i32 = (b >> @as(u5, @intCast(a))) }); try self.stack.append(Value{ .i32 = (b >> @as(u5, @intCast(a))) });
}, },
.i32_shr_u => { .i32_shr_u => {
const a = self.stack.pop().?.i32; const a = @as(u32, @intCast(self.stack.pop().?.i32));
const b = self.stack.pop().?.i32; const b = @as(u32, @intCast(self.stack.pop().?.i32));
try self.stack.append(Value{ .i32 = (b >> @as(u5, @intCast(a))) }); try self.stack.append(Value{ .i32 = @intCast(b >> @as(u5, @intCast(a))) });
}, },
.i32_rotl => @panic("UNIMPLEMENTED"), .i32_rotl => @panic("UNIMPLEMENTED"),
.i32_rotr => @panic("UNIMPLEMENTED"), .i32_rotr => @panic("UNIMPLEMENTED"),
@ -552,7 +552,7 @@ pub const Runtime = struct {
.i32_trunc_f64_u => @panic("UNIMPLEMENTED"), .i32_trunc_f64_u => @panic("UNIMPLEMENTED"),
.i64_extend_i32_s => @panic("UNIMPLEMENTED"), .i64_extend_i32_s => @panic("UNIMPLEMENTED"),
.i64_extend_i32_u => { .i64_extend_i32_u => {
try self.stack.append(.{ .i64 = self.stack.pop().?.i32 }); try self.stack.append(.{ .i64 = @as(u32, @intCast(self.stack.pop().?.i32)) });
}, },
.i64_trunc_f32_s => @panic("UNIMPLEMENTED"), .i64_trunc_f32_s => @panic("UNIMPLEMENTED"),
.i64_trunc_f32_u => @panic("UNIMPLEMENTED"), .i64_trunc_f32_u => @panic("UNIMPLEMENTED"),