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Use bit32 library

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Firebolt 2021-10-17 14:15:42 -04:00
parent cb0467115d
commit 8431ce37f1
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GPG Key ID: 4219518A61A50458
1 changed files with 21 additions and 21 deletions
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42
runtime/luau.lua
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@ -34,7 +34,7 @@ local function unsign_i64(x)
return x
end
local function rip_u64(x) return math.floor(x / 0x100000000), bit.tobit(x % 0x100000000) end
local function rip_u64(x) return math.floor(x / 0x100000000), (x % 0x100000000) % 2 ^ 32 end
local function merge_u64(hi, lo) return hi * 0x100000000 + lo end
@ -74,23 +74,23 @@ function ge.u64(lhs, rhs) return unsign_i64(lhs) >= unsign_i64(rhs) and 1 or 0 e
function gt.u64(lhs, rhs) return unsign_i64(lhs) > unsign_i64(rhs) and 1 or 0 end
band.i32 = bit.band
bor.i32 = bit.bor
bxor.i32 = bit.bxor
bnot.i32 = bit.bnot
band.i64 = bit.band
bor.i64 = bit.bor
bxor.i64 = bit.bxor
bnot.i64 = bit.bnot
band.i32 = bit32.band
bor.i32 = bit32.bor
bxor.i32 = bit32.bxor
bnot.i32 = bit32.bnot
band.i64 = bit32.band
bor.i64 = bit32.bor
bxor.i64 = bit32.bxor
bnot.i64 = bit32.bnot
shl.u32 = bit.lshift
shr.u32 = bit.rshift
shl.i32 = bit.lshift
shr.i32 = bit.rshift
shl.u64 = bit.lshift
shr.u64 = bit.rshift
shl.i64 = bit.lshift
shr.i64 = bit.rshift
shl.u32 = bit32.lshift
shr.u32 = bit32.rshift
shl.i32 = bit32.lshift
shr.i32 = bit32.rshift
shl.u64 = bit32.lshift
shr.u64 = bit32.rshift
shl.i64 = bit32.lshift
shr.i64 = bit32.rshift
extend.i32_u64 = no_op
@ -105,7 +105,7 @@ end
function load.i32_u8(memory, addr)
local value = load.i32(memory, addr)
return bit.band(value, 0xFF)
return bit32.band(value, 0xFF)
end
function load.i64(memory, addr)
@ -126,10 +126,10 @@ end
function store.i32_n8(memory, addr, value)
if addr % 4 ~= 0 then error('unaligned write') end
local old = bit.band(memory.data[addr / 4] or 0, 0xFFFFFF00)
local new = bit.band(value, 0xFF)
local old = bit32.band(memory.data[addr / 4] or 0, 0xFFFFFF00)
local new = bit32.band(value, 0xFF)
memory.data[addr / 4] = bit.bor(old, new)
memory.data[addr / 4] = bit32.bor(old, new)
end
function store.i64(memory, addr, value)