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Implement waiting for retrace in VBE functions. Remove range checks in protected mode functions, consistent with UniVBE and other VBE implementations. Fixes hang and graphics glitches in Jack Orlando.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4048
This commit is contained in:
ripsaw8080 2017-09-10 11:29:34 +00:00
parent 5c0b03c10c
commit 4aa821d0e6
5 changed files with 91 additions and 34 deletions
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42
src/cpu/callback.cpp
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@ -458,6 +458,48 @@ Bitu CALLBACK_SetupExtra(Bitu callback, Bitu type, PhysPt physAddress, bool use_
phys_writew(physAddress+0x02,(Bit16u)0x0ECD); // int 0e
phys_writeb(physAddress+0x04,(Bit8u)0xCF); //An IRET Instruction
return (use_cb?9:5);
case CB_VESA_WAIT:
if (use_cb) E_Exit("VESA wait must not implement a callback handler!");
phys_writeb(physAddress+0x00,(Bit8u)0xFB); // sti
phys_writeb(physAddress+0x01,(Bit8u)0x50); // push ax
phys_writeb(physAddress+0x02,(Bit8u)0x52); // push dx
phys_writeb(physAddress+0x03,(Bit8u)0xBA); // mov dx,
phys_writew(physAddress+0x04,(Bit16u)0x03DA); // 0x3da
phys_writeb(physAddress+0x06,(Bit8u)0xEC); // in al,dx
phys_writew(physAddress+0x07,(Bit16u)0x08A8); // test al,8
phys_writew(physAddress+0x09,(Bit16u)0xFB75); // jne $-5
phys_writeb(physAddress+0x0B,(Bit8u)0xEC); // in al,dx
phys_writew(physAddress+0x0C,(Bit16u)0x08A8); // test al,8
phys_writew(physAddress+0x0E,(Bit16u)0xFB74); // je $-5
phys_writeb(physAddress+0x10,(Bit8u)0x5A); // pop dx
phys_writeb(physAddress+0x11,(Bit8u)0x58); // pop ax
phys_writeb(physAddress+0x12,(Bit8u)0xCB); //A RETF Instruction
return 19;
case CB_VESA_PM:
if (use_cb) {
phys_writeb(physAddress+0x00,(Bit8u)0xFE); //GRP 4
phys_writeb(physAddress+0x01,(Bit8u)0x38); //Extra Callback instruction
phys_writew(physAddress+0x02,(Bit16u)callback); //The immediate word
physAddress+=4;
}
phys_writew(physAddress+0x00,(Bit16u)0xC3F6); // test bl,
phys_writeb(physAddress+0x02,(Bit8u)0x80); // 0x80
phys_writew(physAddress+0x03,(Bit16u)0x1674); // je $+22
phys_writew(physAddress+0x05,(Bit16u)0x5066); // push ax
phys_writew(physAddress+0x07,(Bit16u)0x5266); // push dx
phys_writew(physAddress+0x09,(Bit16u)0xBA66); // mov dx,
phys_writew(physAddress+0x0B,(Bit16u)0x03DA); // 0x3da
phys_writeb(physAddress+0x0D,(Bit8u)0xEC); // in al,dx
phys_writew(physAddress+0x0E,(Bit16u)0x08A8); // test al,8
phys_writew(physAddress+0x10,(Bit16u)0xFB75); // jne $-5
phys_writeb(physAddress+0x12,(Bit8u)0xEC); // in al,dx
phys_writew(physAddress+0x13,(Bit16u)0x08A8); // test al,8
phys_writew(physAddress+0x15,(Bit16u)0xFB74); // je $-5
phys_writew(physAddress+0x17,(Bit16u)0x5A66); // pop dx
phys_writew(physAddress+0x19,(Bit16u)0x5866); // pop ax
if (use_cb)
phys_writeb(physAddress+0x1B,(Bit8u)0xC3); //A RETN Instruction
return (use_cb?32:27);
default:
E_Exit("CALLBACK:Setup:Illegal type %d",type);
}