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https://github.com/holub/mame
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Merge branch 'master' of https://github.com/mamedev/mame
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commit
7b4efc9676
@ -620,13 +620,13 @@ UINT8 cirrus_gd5428_device::cirrus_gc_reg_read(UINT8 index)
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switch(index)
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{
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case 0x00:
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if(gc_mode_ext & 0x02)
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if(gc_mode_ext & 0x04)
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res = vga.gc.set_reset & 0xff;
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else
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res = vga.gc.set_reset & 0x0f;
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break;
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case 0x01:
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if(gc_mode_ext & 0x02)
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if(gc_mode_ext & 0x04)
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res = vga.gc.enable_set_reset & 0xff;
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else
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res = vga.gc.enable_set_reset & 0x0f;
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@ -738,17 +738,11 @@ void cirrus_gd5428_device::cirrus_gc_reg_write(UINT8 index, UINT8 data)
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if(LOG_REG) logerror("CL: GC write %02x to GR%02x\n",data,index);
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switch(index)
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{
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case 0x00: // if extended writes are enabled (bit 2 of index 0bh), then index 0 and 1 are extended to 8 bits
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if(gc_mode_ext & 0x04)
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vga.gc.set_reset = data & 0xff;
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else
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vga.gc.set_reset = data & 0x0f;
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case 0x00: // if extended writes are enabled (bit 2 of index 0bh), then index 0 and 1 are extended to 8 bits, however XFree86 does not appear to do this...
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vga.gc.set_reset = data & 0xff;
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break;
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case 0x01:
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if(gc_mode_ext & 0x04)
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vga.gc.enable_set_reset = data & 0xff;
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else
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vga.gc.enable_set_reset = data & 0x0f;
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vga.gc.enable_set_reset = data & 0xff;
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break;
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case 0x05:
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vga.gc.shift256 = (data & 0x40) >> 6;
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@ -770,7 +764,7 @@ void cirrus_gd5428_device::cirrus_gc_reg_write(UINT8 index, UINT8 data)
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break;
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case 0x0b: // Graphics controller mode extensions
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gc_mode_ext = data;
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if(!(data & 0x02))
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if(!(data & 0x04))
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{
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vga.gc.set_reset &= 0x0f;
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vga.gc.enable_set_reset &= 0x0f;
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