Fix decoding of LEA when address-size prefix (67h) is present.
This is loosly based on Xorg changeset f57bc0e by Christian Zander. Submitted by: Wolf Ramovsky <wolf.ramovsky gmail.com> via core (peter) MFC after: 2 weeks
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=267373
@ -2151,21 +2151,24 @@ x86emuOp_mov_word_RM_SR(struct x86emu *emu)
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static void
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x86emuOp_lea_word_R_M(struct x86emu *emu)
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{
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uint16_t *srcreg;
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uint32_t destoffset;
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/*
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* TODO: Need to handle address size prefix!
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*
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* lea eax,[eax+ebx*2] ??
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*/
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fetch_decode_modrm(emu);
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if (emu->cur_mod == 3)
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x86emu_halt_sys(emu);
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srcreg = decode_rh_word_register(emu);
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destoffset = decode_rl_address(emu);
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*srcreg = (uint16_t) destoffset;
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if (emu->x86.mode & SYSMODE_PREFIX_ADDR) {
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uint32_t *srcreg;
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srcreg = decode_rh_long_register(emu);
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*srcreg = (uint32_t) destoffset;
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} else {
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uint16_t *srcreg;
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srcreg = decode_rh_word_register(emu);
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*srcreg = (uint16_t) destoffset;
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}
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}
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/*
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