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CONTENTS
iii
6.3.5 Coprocessor Unusable exception -------------------------------------------------------- 68
6.3.6 Interrupts ---------------------------------------------------------------------------------------- 69
6.3.7 Overflow exception --------------------------------------------------------------------------- 70
6.3.8 Reserved Instruction exception------------------------------------------------------------ 70
6.3.9 Reset exception ------------------------------------------------------------------------------- 71
6.3.10 System Call exception----------------------------------------------------------------------- 72
6.3.11 Non-maskable interrupt --------------------------------------------------------------------- 72
6.4 Priority of Exceptions ----------------------------------------------------------------73
6.5 Return from Exception Handler ---------------------------------------------------73
Chapter 7 Caches ----------------------------------------------------------------------------------75
7.1 Instruction Cache---------------------------------------------------------------------75
7.2 Data Cache ----------------------------------------------------------------------------76
7.2.1 Lock function----------------------------------------------------------------------------------- 77
7.3 Cache Test Function-----------------------------------------------------------------79
7.4 Cache Refill ----------------------------------------------------------------------------80
7.5 Cache Snoop --------------------------------------------------------------------------81
Chapter 8 Debugging Functions ----------------------------------------------------------------83
8.1 System Control Processor (CP0) Registers -----------------------------------83
8.2 Debug Exceptions --------------------------------------------------------------------87
8.3 Details of Debug Exceptions-------------------------------------------------------90
Appendix A Instruction Set Details -------------------------------------------------------93