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ip22: blast through firmware bug

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This commit is contained in:
Olivier Galibert 2015-02-19 20:19:43 +01:00
parent db37f431a4
commit ce27de6af1
1 changed files with 3 additions and 4 deletions
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7
src/mess/drivers/ip22.c
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@ -706,7 +706,7 @@ READ32_MEMBER(ip22_state::rtc_r)
//verboselog((machine, 3, "RTC RAM MSB Read: %02x \n", RTC_RAMMSB );
return RTC_RAMMSB;
case 0x0053:
return m_RTC.nRAM[ ( RTC_RAMMSB << 8 ) | RTC_RAMLSB ];
return m_RTC.nRAM[ (( RTC_RAMMSB << 8 ) | RTC_RAMLSB) & 0x7ff ];
case 0x005e:
return RTC_WRITECNT;
default:
@ -725,7 +725,7 @@ WRITE32_MEMBER(ip22_state::rtc_w)
{
RTC_WRITECNT++;
// osd_printf_info("RTC_W: offset %x => %x (PC=%x)\n", data, offset, activecpu_get_pc());
// osd_printf_info("RTC_W: offset %x => %x (PC=%x)\n", data, offset, space.device().safe_pc());
if( offset <= 0x0d )
{
@ -850,8 +850,7 @@ WRITE32_MEMBER(ip22_state::rtc_w)
RTC_RAMMSB = data;
break;
case 0x0053:
assert(((RTC_RAMMSB << 8) | RTC_RAMLSB) >= 0 && ((RTC_RAMMSB << 8) | RTC_RAMLSB) < 0x800);
m_RTC.nRAM[ ( RTC_RAMMSB << 8 ) | RTC_RAMLSB ] = data;
m_RTC.nRAM[ (( RTC_RAMMSB << 8 ) | RTC_RAMLSB) & 0x7ff ] = data;
break;
default:
//verboselog((machine, 3, "Unknown RTC Ext. Reg. Write: %02x: %02x\n", offset, data );