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copy 2016-02-14 18:14:42 +01:00
parent 9b268828c3
commit ca2405b0ad
1 changed files with 11 additions and 18 deletions
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29
src/vga.js
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@ -1063,25 +1063,18 @@ VGAScreen.prototype.port3D5_write = function(value)
VGAScreen.prototype.port3D5_read = function()
{
if(this.index_crtc === 0x9)
switch(this.index_crtc)
{
return this.max_scan_line;
}
if(this.index_crtc === 0xA)
{
return this.cursor_scanline_start;
}
else if(this.index_crtc === 0xB)
{
return this.cursor_scanline_end;
}
else if(this.index_crtc === 0xE)
{
return this.cursor_address >> 8;
}
else if(this.index_crtc === 0xF)
{
return this.cursor_address & 0xFF;
case 0x9:
return this.max_scan_line;
case 0xA:
return this.cursor_scanline_start;
case 0xB:
return this.cursor_scanline_end;
case 0xE:
return this.cursor_address >> 8;
case 0xF:
return this.cursor_address & 0xFF;
}
dbg_log("3D5 read " + h(this.index_crtc), LOG_VGA);