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/macosx-10.5.8/xnu-1228.15.4/iokit/IOKit/ppc/
H A DIOSharedLockImp.h78 8: lwz a7,0(a0) // Get lock word variable
79 mr. a7,a7 // Is it held?
82 9: lwarx a7,0,a0 // read the lock
83 mr. a7,a7 // Is it held?
90 7: li a7,-4 // Point to a spot in the red zone
91 stwcx. a7,a7,r1 // Kill reservation variable
101 8: lwz a7, variable
114 stwcx. a7,a7,r1 // Kill reservation variable
129 li a7,0 variable
130 stw a7,0(a0) variable
136 li a7,0 variable
137 stw a7,0(a0) variable
152 lwz a7,0(a0) // Get lock word variable
165 7: li a7,-4 // Point to a spot in the red zone variable
166 stwcx. a7,a7,r1 // Kill reservation variable
177 lwz a7,0(a0) // Get lock word variable
190 7: li a7,-4 // Point to a spot in the red zone variable
191 stwcx. a7,a7,r1 // Kill reservation variable
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/macosx-10.5.8/xnu-1228.15.4/EXTERNAL_HEADERS/architecture/ppc/
H A Dreg_help.h63 #define a7 r10 // arg 7, return value 7, caller saved macro

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