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target-m68k: fix bit operation with immediate value

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M680x0 bit operations with an immediate value use 9 bits of the 16bit
value, while coldfire ones use only 8 bits.

Backports commit fe53c2be8c12da345bd788b949e0b2360e4b3db3 from qemu
This commit is contained in:
Laurent Vivier 2018-03-01 19:12:12 -05:00 committed by Lioncash
parent 6f5081314b
commit b3c3cf84a5
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 10 additions and 3 deletions
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13
qemu/target-m68k/translate.c
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@ -1836,9 +1836,16 @@ DISAS_INSN(bitop_im)
op = (insn >> 6) & 3;
bitnum = read_im16(env, s);
if (bitnum & 0xff00) {
disas_undef(env, s, insn);
return;
if (m68k_feature(s->env, M68K_FEATURE_M68000)) {
if (bitnum & 0xfe00) {
disas_undef(env, s, insn);
return;
}
} else {
if (bitnum & 0xff00) {
disas_undef(env, s, insn);
return;
}
}
SRC_EA(env, src1, opsize, 0, op ? &addr: NULL);