From cf109f9198e412e004213904767eb6d9b3f5ddbb Mon Sep 17 00:00:00 2001 From: Angelo Salese Date: Thu, 2 Feb 2012 20:00:41 +0000 Subject: [PATCH] Added ID --- src/emu/video/pc_vga.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/src/emu/video/pc_vga.c b/src/emu/video/pc_vga.c index bbea822201d..db55a1a7b97 100644 --- a/src/emu/video/pc_vga.c +++ b/src/emu/video/pc_vga.c @@ -1827,6 +1827,10 @@ static UINT8 trident_seq_reg_read(running_machine &machine, UINT8 index) { switch(index) { + case 0x0b: + res = svga.id; + // TODO: new mode registers selected + break; case 0x0d: res = svga.rgb15_en; break; @@ -1848,6 +1852,9 @@ static void trident_seq_reg_write(running_machine &machine, UINT8 index, UINT8 d { switch(index) { + case 0x0b: + // TODO: old mode registers selected + break; case 0x0d: svga.rgb15_en = data & 0x30; // TODO: doesn't match documentation break; @@ -1928,7 +1935,8 @@ READ8_HANDLER( trident_mem_r ) if (svga.rgb15_en & 0x30) { int data; - if(svga.bank_w>0x09) return 0; + if(offset & 0x10000) // TODO: old reg mode actually CAN read to the upper bank + return 0; data=vga.memory[offset + (svga.bank_w*0x10000)]; return data; } @@ -1940,7 +1948,8 @@ WRITE8_HANDLER( trident_mem_w ) { if (svga.rgb15_en & 0x30) { - if (svga.bank_w>0x09)return; + if(offset & 0x10000) // TODO: old reg mode actually CAN write to the upper bank + return; vga.memory[offset + (svga.bank_w*0x10000)]= data; return; }