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(MESS) ti99: Enabled supercart banking in HSGPL.

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This commit is contained in:
Michael Zapf 2013-07-06 23:42:21 +00:00
parent 323b2acce7
commit cdbf560238
1 changed files with 14 additions and 0 deletions
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14
src/mess/machine/ti99/hsgpl.c
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@ -116,6 +116,7 @@
#include "hsgpl.h"
#define CRU_BASE 0x1B00
#define SUPERCART_BASE 0x0800
#define VERBOSE 1
#define LOG logerror
@ -146,6 +147,18 @@ void snug_high_speed_gpl_device::crureadz(offs_t offset, UINT8 *value)
*/
void snug_high_speed_gpl_device::cruwrite(offs_t offset, UINT8 data)
{
// SuperCart handling - see gromport.c
if (m_supercart_enabled && ((offset & 0xfff0)==SUPERCART_BASE))
{
if (data != 0)
{
if (VERBOSE>2) LOG("hsgpl: Supercart cru setting %04x\n", offset);
m_current_bank = (offset-0x0802)>>2;
}
return;
}
// Common CRU handling
if ((offset & 0xff00)==CRU_BASE)
{
int bit = (offset >> 1) & 0x0f;
@ -185,6 +198,7 @@ void snug_high_speed_gpl_device::cruwrite(offs_t offset, UINT8 data)
break;
case 11:
m_supercart_enabled = data;
// CHECK: Do we have to reset the bank?
if (VERBOSE>5) LOG("hsgpl: Set supercart_enabled=%x\n", data);
break;
case 12: