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z80: bug fix for 16-bit operands

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This commit is contained in:
Patrick Mackinlay 2022-05-23 11:12:00 +07:00 committed by Vas Crabb
parent 09e3fefead
commit 6e54ab76fc
1 changed files with 3 additions and 1 deletions
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4
src/devices/cpu/z80/z80.cpp
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@ -555,7 +555,9 @@ uint8_t z80_device::arg()
uint16_t z80_device::arg16() uint16_t z80_device::arg16()
{ {
return arg() | (arg() << 8); u8 const res = arg();
return (u16(arg()) << 8) | res;
} }
/*************************************************************** /***************************************************************