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> Compiler Internals > [fixed in 1.69.11 BUG] CALL AX vs CALL EAX |
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revolution 18 Dec 2009, 02:08
DOS386 wrote: Both instructions compile happily into very same code In 32bit mode the prefix is properly added. |
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18 Dec 2009, 02:08 |
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sinsi 18 Dec 2009, 02:17
EAX in 16-bit mode would need to be FFFF or less wouldn't it? So 'call eax' is really only 'call ax' anyway.
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18 Dec 2009, 02:17 |
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revolution 18 Dec 2009, 04:00
sinsi wrote: EAX in 16-bit mode would need to be FFFF or less wouldn't it? So 'call eax' is really only 'call ax' anyway. |
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18 Dec 2009, 04:00 |
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sinsi 18 Dec 2009, 04:49
>The programmer might need a fault to be generated.
OK, I can sort of see that. >Or the descriptors might not be set to default. But the code descriptor affects CS and IP in 16-bit, two registers you can't change directly even in 'unreal' mode. EAX into IP doesn't work. |
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18 Dec 2009, 04:49 |
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revolution 18 Dec 2009, 04:55
sinsi wrote: But the code descriptor affects CS and IP in 16-bit, two registers you can't change directly even in 'unreal' mode. EAX into IP doesn't work. |
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18 Dec 2009, 04:55 |
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Tomasz Grysztar 19 Dec 2009, 18:50
Fixed in 1.69.11.
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19 Dec 2009, 18:50 |
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DOS386 20 Dec 2009, 07:46
Tomasz Grysztar wrote: Fixed in 1.69.11. Great 
- Fixed "CALL-EAX-BUG" (in X86_X64.INC  )
- Fixed "PMOVMSKB-64-Bit-BUG" - Fixed "GPF-beer-BUG" in the DOS IDE
I haven't tested yet, just checked the source 
The docs are same, could you please fix the (minor) docs bugs with the next release ? |
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20 Dec 2009, 07:46 |
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