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4 commits

Author SHA1 Message Date
Aleksandar Andrejevic e801e2f0ea [NTVDM]
Display the opcode when an unhandled exception occurs.


svn path=/branches/ntvdm/; revision=60897
2013-11-09 15:48:07 +00:00
Hermès Bélusca-Maïto 860c121da8 [NTVDM]
- BIOS: Implement INT 12h (BiosGetMemorySize)
- BOP/DOS: Add some DPRINTs for INT 25h, 2Fh and for unimplemented functions of INT 21h. It's for helping in testing 4DOS.COM

svn path=/branches/ntvdm/; revision=60889
2013-11-08 23:15:58 +00:00
Hermès Bélusca-Maïto 5c220ef022 [FAST486]
Fix the type of a variable.

[NTVDM]
Introduce a BOP handler table for the 256 possible BOP functions and use it.

svn path=/branches/ntvdm/; revision=60818
2013-11-01 02:28:47 +00:00
Hermès Bélusca-Maïto 39a527a21e [FAST486][NTVDM]
BOP numbers are 1 byte and map to a function (over 255). But one can pass additional "parameters" to those functions by adding extra bytes, however such functions must advance "by hand" the instruction pointer.

[NTVDM]
- Take into account our previous remark for the BIOS interrupt stubs, and comment them.
- Rework EmulatorBiosOperation (move almost all of its existing code into subfunctions in bop.c) so that one can call many other BOP functions in the future (WIP). The BOP number (still called) EMULATOR_INT_BOP (of value 0xFF) is used for internal 16 --> 32 bit switching for our 32bit bios.
- It appears that the IoRead/WriteCallback and IdleCallback must not be NULL for using fast486. I'm committing a temporary fix that I will definitely fix in a subsequent commit.

svn path=/branches/ntvdm/; revision=60812
2013-11-01 00:01:07 +00:00