lxdream.org :: lxdream/test/asic.c r193:31151fcc3cb7

filename	test/asic.c
changeset	193:31151fcc3cb7
prev	185:6755a04c447f
next	561:533f6b478071
author	nkeynes
date	Sun Aug 06 06:13:51 2006 +0000 (17 years ago)
permissions	-rw-r--r--
last change	First pass at implementing the tile clip. Reasonably accurate wrt basic understanding of how its supposed to work, not so accurate wrt actual hardware behaviour

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     1.1 --- a/test/asic.c	Tue Jul 11 01:35:27 2006 +0000
     1.2 +++ b/test/asic.c	Sun Aug 06 06:13:51 2006 +0000
     1.3 @@ -1,5 +1,5 @@
     1.4  /**
     1.5 - * $Id: asic.c,v 1.1 2006-07-11 01:35:23 nkeynes Exp $
     1.6 + * $Id: asic.c,v 1.2 2006-08-04 01:38:30 nkeynes Exp $
     1.7   * 
     1.8   * General ASIC support code
     1.9   *
    1.10 @@ -52,6 +52,13 @@
    1.11      long_write(ASIC_PIRQ(2), 0xFFFFFFFF);
    1.12  }
    1.13  
    1.14 +int asic_check( int event ) 
    1.15 +{
    1.16 +    int n = event >> 5;
    1.17 +    unsigned int mask = (1<< (event&0x1f));
    1.18 +    return (long_read(ASIC_PIRQ(n)) & mask) != 0;
    1.19 +}
    1.20 +
    1.21  void asic_mask_all()
    1.22  {
    1.23      long_write(ASIC_IRQA(0), 0);