jens
8750901468
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@787 cc03376c-175c-47c8-b038-4cd826a8556b
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
#ifndef XCPT_H
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#define XCPT_H
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#define MAX_NUM_XCPT 32
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#define XCPT_ERR_NOTHANDLED 0x80000000
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typedef enum
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{
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Int = 0, Mod = 1, TLBL = 2, TLBS = 3, AdEL = 4, AdES = 5,
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IBE = 6, DBE = 7, Syscall = 8, Bp = 9, RI = 10, CpU = 11,
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Ov = 12, TRAP = 13, VCEI = 14, FPE = 15, C2E = 16, Watch = 23, VCED = 31
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} EXCEPTION_CODE;
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typedef unsigned int reg_t;
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typedef struct xcptcontext
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{
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/* This is the exception context frame that is passed to the exception
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handlers. It gets filled in by the low-level exception handler in
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"machine.S". An assembler version of this structure can be found at the
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bottom of "machine.H".*/
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reg_t sr; /* Status Register */
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reg_t cr; /* Cause Register */
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reg_t epc; /* PC at time of exception. */
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reg_t baddr;
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reg_t regs[32]; /* Copy of all general purpose registers */
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reg_t mdlo; /* HI/LO registers (used for memory management) */
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reg_t mdhi;
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reg_t count; /* Timer registers */
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reg_t compare;
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struct xcptcontext * prev; /* To link exceptions. (unused for now) */
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unsigned xclass; /* Priority class of this exception. (unused for now). */
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} EXCEPTION_CONTEXT;
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typedef int (*fp_xcpt_t)(struct xcptcontext * xcp);
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#define PRINT_REG(tag_str, reg) \
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sputs(tag_str); \
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print_word(reg); \
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sputs(" ");
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#define PRINT_REG_CHG(tag_str, reg, chg_tag) \
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sputs(tag_str); \
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print_word(reg); \
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sputs(chg_tag); \
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sputs(" ");
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// Public functions
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void xcpt_register(int xcpt_num, fp_xcpt_t fp);
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#endif // XCPT_H
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