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Added a SCI1.1 case in the lofss opcode, like in the lofsa opcode (essentially, lofss and lofsa both load an offset, with lofsa loading it in the accumulator and lofss in the stack). lofss is rarely used in SCI1.1 games, which explains why no lofss-related crashes have been observed in SCI1.1

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svn-id: r42209
This commit is contained in:
Filippos Karapetis 2009-07-07 07:51:26 +00:00
parent 45b7e5bbc2
commit e4f6330418
1 changed files with 9 additions and 4 deletions
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13
engines/sci/engine/vm.cpp
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@ -1211,10 +1211,15 @@ void run_vm(EngineState *s, int restoring) {
case 0x3a: // lofss
r_temp.segment = xs->addr.pc.segment;
if (s->_kernel->hasLofsAbsolute())
r_temp.offset = opparams[0];
else
r_temp.offset = xs->addr.pc.offset + opparams[0];
if (s->_version >= SCI_VERSION_1_1) {
r_temp.offset = opparams[0] + local_script->script_size;
} else {
if (s->_kernel->hasLofsAbsolute())
r_temp.offset = opparams[0];
else
r_temp.offset = xs->addr.pc.offset + opparams[0];
}
#ifndef DISABLE_VALIDATIONS
if (r_temp.offset >= code_buf_size) {
error("VM: lofss operation overflowed: %04x:%04x beyond end"