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DynASM/x86: Allow [&expr] operand.

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Thanks to Dmitry Stogov. #1138
This commit is contained in:
Mike Pall 2023-12-23 20:06:17 +01:00
parent dbd363ca25
commit c525bcb902
1 changed files with 7 additions and 3 deletions
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10
dynasm/dasm_x86.lua
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@ -627,7 +627,11 @@ local function wputmrmsib(t, imark, s, vsreg, psz, sk)
werror("NYI: rip-relative displacement followed by immediate")
end
-- The previous byte in the action buffer cannot be 0xe9 or 0x80-0x8f.
wputlabel("REL_", disp[1], 2)
if disp[2] == "iPJ" then
waction("REL_A", disp[1])
else
wputlabel("REL_", disp[1], 2)
end
else
wputdarg(disp)
end
@ -744,9 +748,9 @@ local function dispexpr(expr)
return imm*map_opsizenum[ops]
end
local mode, iexpr = immexpr(dispt)
if mode == "iJ" then
if mode == "iJ" or mode == "iPJ" then
if c == "-" then werror("cannot invert label reference") end
return { iexpr }
return { iexpr, mode }
end
return expr -- Need to return original signed expression.
end