lxdream.org :: lxdream/src/sh4/sh4mem.c r910:661367ef919d

filename	src/sh4/sh4mem.c
changeset	910:661367ef919d
prev	905:4c17ebd9ef5e
next	911:2f6ba75b84d1
author	nkeynes
date	Fri Oct 31 01:07:44 2008 +0000 (15 years ago)
permissions	-rw-r--r--
last change	Add shortcut test for long writes to the store queue (far and away the most popular P4 write)

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     1.1 --- a/src/sh4/sh4mem.c	Wed Oct 29 23:51:58 2008 +0000
     1.2 +++ b/src/sh4/sh4mem.c	Fri Oct 31 01:07:44 2008 +0000
     1.3 @@ -272,7 +272,11 @@
     1.4      CHECK_WRITE_WATCH(addr,4,val);
     1.5  
     1.6      if( addr >= 0xE0000000 ) {
     1.7 -        sh4_write_p4( addr, val );
     1.8 +    	if( addr < 0xE4000000 ) { // Shortcut for the extremely common case
     1.9 +            SH4_WRITE_STORE_QUEUE( addr, val );
    1.10 +    	} else {
    1.11 +            sh4_write_p4( addr, val );
    1.12 +    	}
    1.13          return;
    1.14      } else if( (addr&0x1C000000) == 0x0C000000 ) {
    1.15          *(uint32_t *)(sh4_main_ram + (addr&0x00FFFFFF)) = val;