valter/dosbox-staging
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Add support for monochrome mode:

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- EGA and VGA mode 0x0F (implement plane masking in the attribute controller)
- re-factor EGA monitor emulation (attribute controller bit is used to detect monochrome mode, horizontal frequency to choose 16/64 colors)

Hardware blinking in graphics mode is still not supported.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3813
This commit is contained in:
Ralf Grillenberger 2013-01-26 22:01:32 +00:00
parent 2fea508f7f
commit 81226995de
5 changed files with 108 additions and 37 deletions
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4
include/vga.h
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@ -427,6 +427,10 @@ void VGA_DAC_CombineColor(Bit8u attr,Bit8u pal);
void VGA_DAC_SetEntry(Bitu entry,Bit8u red,Bit8u green,Bit8u blue);
void VGA_ATTR_SetPalette(Bit8u index,Bit8u val);
typedef enum {CGA, EGA, MONO} EGAMonitorMode;
void VGA_ATTR_SetEGAMonitorPalette(EGAMonitorMode m);
/* The VGA Subfunction startups */
void VGA_SetupAttr(void);
void VGA_SetupMemory(Section* sec);