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fatalerror if the SH4 mmu is turned on.

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looks like quite a few NaomiGDs need it.. Ikaruga, Border Down, Senko etc. etc.
This commit is contained in:
davidhay 2009-03-21 19:33:39 +00:00
parent 6a0e1ddf09
commit 663bc8a8cd
1 changed files with 6 additions and 0 deletions
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6
src/emu/cpu/sh4/sh4comn.c
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@ -641,6 +641,12 @@ WRITE32_HANDLER( sh4_internal_w )
switch( offset ) switch( offset )
{ {
case MMUCR: // MMU Control
if (data & 1)
fatalerror("SH4: MMUCR write enables MMU\n");
break;
// Memory refresh // Memory refresh
case RTCSR: case RTCSR:
sh4->m[RTCSR] &= 255; sh4->m[RTCSR] &= 255;