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Fix signed i64 memory

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This commit is contained in:
Rerumu 2022-06-26 01:28:16 -04:00
parent 34dbd6b018
commit 4e10ed9d93
1 changed files with 29 additions and 14 deletions
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43
codegen/luau/runtime/runtime.lua
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@ -1,5 +1,6 @@
local module = {}
local MAX_UNSIGNED = 0xffffffff
local MAX_SIGNED = 0x7fffffff
local BIT_SET_27 = 0x8000000
local BIT_SET_32 = 0x100000000
@ -551,13 +552,17 @@ do
end
function load.i64_i8(memory, addr)
local temp = load_byte(memory.data, addr)
local data_1 = load_byte(memory.data, addr)
local data_2
if temp >= 0x80 then
temp = to_u32(temp - 0x100)
if data_1 >= 0x80 then
data_1 = to_u32(data_1 - 0x100)
data_2 = MAX_UNSIGNED
else
data_2 = 0
end
return num_from_u32(temp, 0)
return num_from_u32(data_1, data_2)
end
function load.i64_u8(memory, addr)
@ -568,22 +573,25 @@ do
function load.i64_i16(memory, addr)
local data = memory.data
local temp
local data_1, data_2
if addr % 4 == 0 then
temp = bit_and(data[addr / 4] or 0, 0xFFFF)
data_1 = bit_and(data[addr / 4] or 0, 0xFFFF)
else
local b1 = load_byte(data, addr)
local b2 = bit_lshift(load_byte(data, addr + 1), 8)
temp = bit_or(b1, b2)
data_1 = bit_or(b1, b2)
end
if temp >= 0x8000 then
temp = to_u32(temp - 0x10000)
if data_1 >= 0x8000 then
data_1 = to_u32(data_1 - 0x10000)
data_2 = MAX_UNSIGNED
else
data_2 = 0
end
return num_from_u32(temp, 0)
return num_from_u32(data_1, data_2)
end
function load.i64_u16(memory, addr)
@ -604,20 +612,27 @@ do
function load.i64_i32(memory, addr)
local data = memory.data
local temp
local data_1, data_2
if addr % 4 == 0 then
temp = data[addr / 4] or 0
data_1 = data[addr / 4] or 0
else
local b1 = load_byte(data, addr)
local b2 = bit_lshift(load_byte(data, addr + 1), 8)
local b3 = bit_lshift(load_byte(data, addr + 2), 16)
local b4 = bit_lshift(load_byte(data, addr + 3), 24)
temp = bit_or(b1, b2, b3, b4)
data_1 = bit_or(b1, b2, b3, b4)
end
return num_from_u32(temp, 0)
if data_1 >= 0x80000000 then
data_1 = to_u32(data_1 - 0x100000000)
data_2 = MAX_UNSIGNED
else
data_2 = 0
end
return num_from_u32(data_1, data_2)
end
function load.i64_u32(memory, addr)