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K. Richard Pixley
1993-08-31 22:26:48 +00:00
parent 755892d6ff
commit 9e58280a94
1 changed files with 5 additions and 4 deletions
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9
gdb/dcache.c
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@ -28,8 +28,8 @@ extern int remque();
/* The data cache records all the data read from the remote machine /* The data cache records all the data read from the remote machine
since the last time it stopped. since the last time it stopped.
Each cache block holds line_size bytes of data Each cache block holds LINE_SIZE bytes of data
starting at a multiple-of-line_size address. */ starting at a multiple-of-LINE_SIZE address. */
#define LINE_SIZE_MASK ((LINE_SIZE - 1)) /* eg 7*2+1= 111*/ #define LINE_SIZE_MASK ((LINE_SIZE - 1)) /* eg 7*2+1= 111*/
#define XFORM(x) (((x) & LINE_SIZE_MASK) >> 2) #define XFORM(x) (((x) & LINE_SIZE_MASK) >> 2)
@ -88,8 +88,9 @@ dcache_value (db, addr)
and return its address. The caller should store into the block and return its address. The caller should store into the block
the address and data that it describes, then remque it from the the address and data that it describes, then remque it from the
free list and insert it into the valid list. This procedure free list and insert it into the valid list. This procedure
prevents errors from creeping in if a ninMemGet is interrupted prevents errors from creeping in if a memory retrieval is
(which used to put garbage blocks in the valid list...). */ interrupted (which used to put garbage blocks in the valid
list...). */
struct dcache_block * struct dcache_block *
dcache_alloc (dcache) dcache_alloc (dcache)
DCACHE *dcache; DCACHE *dcache;