HFFullMemoryByteSlice.m

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SameBoy	Accurate GB/GBC emulator
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HexFiend/HFFullMemoryByteSlice.m

      1 //
      2 //  HFFullMemoryByteSlice.m
      3 //  HexFiend_2
      4 //
      5 //  Copyright 2007 ridiculous_fish. All rights reserved.
      6 //
      7 
      8 #import "HFFullMemoryByteSlice.h"
      9 
     10 
     11 @implementation HFFullMemoryByteSlice
     12 
     13 - (instancetype)initWithData:(NSData *)val {
     14     REQUIRE_NOT_NULL(val);
     15     self = [super init];
     16     data = [val copy];
     17     return self;
     18 }
     19 
     20 - (void)dealloc {
     21     [data release];
     22     [super dealloc];
     23 }
     24 
     25 - (unsigned long long)length { return [data length]; }
     26 
     27 - (void)copyBytes:(unsigned char *)dst range:(HFRange)lrange {
     28     NSRange range;
     29     HFASSERT(lrange.location <= NSUIntegerMax);
     30     HFASSERT(lrange.length <= NSUIntegerMax);
     31     HFASSERT(lrange.location + lrange.length >= lrange.location);
     32     range.location = ll2l(lrange.location);
     33     range.length = ll2l(lrange.length);
     34     [data getBytes:dst range:range];
     35 }
     36 
     37 - (HFByteSlice *)subsliceWithRange:(HFRange)range {
     38     HFASSERT(range.length > 0);
     39     HFASSERT(range.location < [self length]);
     40     HFASSERT([self length] - range.location >= range.length);
     41     HFASSERT(range.location <= NSUIntegerMax);
     42     HFASSERT(range.length <= NSUIntegerMax);
     43     return [[[[self class] alloc] initWithData:[data subdataWithRange:NSMakeRange(ll2l(range.location), ll2l(range.length))]] autorelease];
     44 }
     45 
     46 @end

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