40 lines
1.1 KiB
C
Executable file
40 lines
1.1 KiB
C
Executable file
/*** V I D E O ***/
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#define setMode(hexval) asm { mov ax, hexval; int 10h }
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#define setVGAMode() setMode(0013h)
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#define setEGAMode() setMode(000Dh)
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#define setTextMode() setMode(0003h)
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#define REG_AC 0x03c0
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#define REG_TS 0x03c4
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#define REG_GDC 0x03ce
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#define REG_CRTC 0x03d4
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#define PLANE_B 0x00
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#define PLANE_G 0x01
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#define PLANE_R 0x02
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#define PLANE_I 0x03
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#define setPlane(p) outport(REG_TS, 2 | (0x100 << p))
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#define setPlaneColor(c) outport(REG_TS, 2 | (c << 8))
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#define setAllPlanes() setPlaneColor(0x0f)
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#define setWriteMode(m) outport(REG_GDC, 0x05 | (m << 8))
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#define setBitMask(m) outport(REG_GDC, 0x08 | (m << 8))
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#define setResetEnabled(m) outport(REG_GDC, 0x01 | (m << 8))
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#define setResetMask(m) outport(REG_GDC, m << 8)
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#define VID ((volatile char far *)MK_FP(0xa000, 0))
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#define WVID ((volatile int far *)MK_FP(0xa000, 0))
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#define flipPage(p) outport(REG_CRTC, 0x0c | (p << 8))
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#define setLogicalWidth(w) outport(REG_CRTC, 0x13 | (w << 8))
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void vid_cleanup();
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void setSplitScreen(unsigned int y);
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void unsetSplitScreen();
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void setDisplayOffset(unsigned int offset);
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void setHorizontalPan(int offset);
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