[Ming-dev] actionscript code generation bug

[Albrecht K. <kl...@ak...>]

Hi,

if you compile a line like this:

   xtext=abs(3>4? 5:6);

the Ming as compiler seems to generate invalid code,
listswf tells us as follows:

    66:SWFACTION_PUSH
     [000]   Constant: 0 "xtext"
     [001]   Integer: 4
     [002]   Integer: 3
    81:SWFACTION_LESS2
    82:SWFACTION_IF
    BranchOffset: 13, TargetOffset: 100
    2 Action
    87:SWFACTION_PUSH
     [000]   Integer: 6
    95:SWFACTION_JUMP
    BranchOffset: 8, TargetOffset: 108<------ jump just into operation
    100:SWFACTION_PUSH
     [000]   Integer: 5
     [001]   Integer: 1
     [002]   Constant: 1 "Math"
    115:SWFACTION_GETVARIABLE
    116:SWFACTION_PUSH
     [000]   Constant: 2 "abs"
    121:SWFACTION_CALLMETHOD

To compare I tried MTASC with better results:

    255:SWFACTION_PUSH
     [000]   Constant: 5 "xtext"
     [001]   Integer: 3
     [002]   Integer: 4
    270:SWFACTION_GREATER
    271:SWFACTION_IF
    BranchOffset: 13, TargetOffset: 289
    2 Action
    276:SWFACTION_PUSH
     [000]   Integer: 6
    284:SWFACTION_JUMP
    BranchOffset: 8, TargetOffset: 297
    289:SWFACTION_PUSH
     [000]   Integer: 5
    297:SWFACTION_PUSH<--------------------- an additional PUSH here
     [000]   Integer: 1
     [001]   Constant: 6 "Math"
    307:SWFACTION_GETVARIABLE
    308:SWFACTION_PUSH
     [000]   Constant: 7 "abs"
    313:SWFACTION_CALLMETHOD

As we can see, the 3rd PUSH should be splitted into 2 operations.

Does someone could solve this problem ???

Cheers
Albrecht