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add some comments about unimplemented opcodes

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svn-id: r14790
This commit is contained in:
Jonathan Gray 2004-08-26 23:28:10 +00:00
parent 3b7d3120c1
commit d71604c20c
1 changed files with 17 additions and 23 deletions
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40
saga/sthread.cpp
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@ -222,8 +222,8 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
debug(0, "Executing thread offset: %lu (%x)", thread->i_offset, in_char);
switch (in_char) {
case 0x01: // Align (ALGN)
debug(0, "Stub: ALGN");
case 0x01: // nextblock
debug(0, "Stub: opcode 0x01(nextblock)");
break;
// STACK INSTRUCTIONS
@ -350,12 +350,10 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
param1 = scriptS.readUint16LE();
break;
// (?) Unknown
case 0x1B:
case 0x1B: // Return with value
unhandled = 1;
break;
// (EXIT) End subscript
case 0x1C:
case 0x1C: // Return with void
if (thread->stack->size() == 0) {
_vm->_console->print("Script execution complete.");
thread->executing = 0;
@ -404,14 +402,6 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
thread->i_offset = (unsigned long)param1;
}
break;
// (JMPR): Relative jump
case 0x57:
// ignored?
scriptS.readUint16LE();
scriptS.readUint16LE();
iparam1 = (long)scriptS.readByte();
thread->i_offset += iparam1;
break;
// (SWCH): Switch
case 0x22:
{
@ -468,7 +458,7 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
}
break;
// MISC. INSTRUCTIONS
// UNARY INSTRUCTIONS
// (NEG) Negate stack by 2's complement
case 0x25:
@ -489,29 +479,25 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
data = ~data;
thread->stack->push(data);
break;
// (?)
case 0x28:
case 0x28: // inc_v increment, don't push
unhandled = 1;
printf("??? ");
scriptS.readByte();
scriptS.readUint16LE();
break;
// (?)
case 0x29:
case 0x29: // dec_v decrement, don't push
unhandled = 1;
printf("??? ");
scriptS.readByte();
scriptS.readUint16LE();
break;
// (?)
case 0x2A:
case 0x2A: // postinc
unhandled = 1;
printf("??? ");
scriptS.readByte();
scriptS.readUint16LE();
break;
// (?)
case 0x2B:
case 0x2B: // postdec
unhandled = 1;
printf("??? ");
scriptS.readByte();
@ -723,9 +709,11 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
break;
// (DLGS): Initialize dialogue interface
case 0x54:
warning("dialog_begin opcode: stub");
break;
// (DLGX): Run dialogue interface
case 0x55:
warning("dialog_end opcode: stub");
break;
// (DLGO): Add a dialogue option to interface
case 0x56:
@ -745,6 +733,12 @@ int Script::SThreadRun(R_SCRIPT_THREAD *thread, int instr_limit, int msec) {
}
}
break;
case 0x57: // animate
scriptS.readUint16LE();
scriptS.readUint16LE();
iparam1 = (long)scriptS.readByte();
thread->i_offset += iparam1;
break;
// End instruction list