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kaf24@firebug.cl.cam.ac.uk
13e63314c4
The following allows you to run unmodified guest operating systems
under Xen on VMX (VT) enabled processors. The tree lives under
<ROOT>/tools/dfw. Instead of booting a guest kernel, boot vmxloader and
specify the disk image in qemurc.
Leendert
Signed-Off-By: Leendert van Doorn <leendert@watson.ibm.com>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#ifndef vgabios_h_included
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#define vgabios_h_included
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/* Types */
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typedef unsigned char Bit8u;
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typedef unsigned short Bit16u;
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typedef unsigned long Bit32u;
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typedef unsigned short Boolean;
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/* Defines */
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#define SET_AL(val8) AX = ((AX & 0xff00) | (val8))
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#define SET_BL(val8) BX = ((BX & 0xff00) | (val8))
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#define SET_CL(val8) CX = ((CX & 0xff00) | (val8))
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#define SET_DL(val8) DX = ((DX & 0xff00) | (val8))
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#define SET_AH(val8) AX = ((AX & 0x00ff) | ((val8) << 8))
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#define SET_BH(val8) BX = ((BX & 0x00ff) | ((val8) << 8))
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#define SET_CH(val8) CX = ((CX & 0x00ff) | ((val8) << 8))
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#define SET_DH(val8) DX = ((DX & 0x00ff) | ((val8) << 8))
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#define GET_AL() ( AX & 0x00ff )
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#define GET_BL() ( BX & 0x00ff )
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#define GET_CL() ( CX & 0x00ff )
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#define GET_DL() ( DX & 0x00ff )
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#define GET_AH() ( AX >> 8 )
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#define GET_BH() ( BX >> 8 )
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#define GET_CH() ( CX >> 8 )
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#define GET_DH() ( DX >> 8 )
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#define SET_CF() FLAGS |= 0x0001
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#define CLEAR_CF() FLAGS &= 0xfffe
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#define GET_CF() (FLAGS & 0x0001)
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#define SET_ZF() FLAGS |= 0x0040
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#define CLEAR_ZF() FLAGS &= 0xffbf
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#define GET_ZF() (FLAGS & 0x0040)
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#define SCROLL_DOWN 0
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#define SCROLL_UP 1
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#define NO_ATTR 2
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#define WITH_ATTR 3
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#define SCREEN_SIZE(x,y) (((x*y*2)|0x00ff)+1)
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#define SCREEN_MEM_START(x,y,p) ((((x*y*2)|0x00ff)+1)*p)
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#define SCREEN_IO_START(x,y,p) ((((x*y)|0x00ff)+1)*p)
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#endif
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