159 lines
5.9 KiB
ArmAsm
159 lines
5.9 KiB
ArmAsm
/*
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* regs.S -- standard MIPS register names.
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*
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* Copyright (c) 1995 Cygnus Support
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*
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* The authors hereby grant permission to use, copy, modify, distribute,
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* and license this software and its documentation for any purpose, provided
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* that existing copyright notices are retained in all copies and that this
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* notice is included verbatim in any distributions. No written agreement,
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* license, or royalty fee is required for any of the authorized uses.
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* Modifications to this software may be copyrighted by their authors
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* and need not follow the licensing terms described here, provided that
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* the new terms are clearly indicated on the first page of each file where
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* they apply.
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*/
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/* Standard MIPS register names: */
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#define zero $0
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#define z0 $0
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#define v0 $2
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#define v1 $3
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#define a0 $4
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#define a1 $5
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#define a2 $6
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#define a3 $7
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#define t0 $8
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#define t1 $9
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#define t2 $10
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#define t3 $11
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#define t4 $12
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#define t5 $13
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#define t6 $14
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#define t7 $15
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#define s0 $16
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#define s1 $17
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#define s2 $18
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#define s3 $19
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#define s4 $20
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#define s5 $21
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#define s6 $22
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#define s7 $23
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#define t8 $24
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#define t9 $25
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#define k0 $26 /* kernel private register 0 */
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#define k1 $27 /* kernel private register 1 */
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#define gp $28 /* global data pointer */
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#define sp $29 /* stack-pointer */
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#define fp $30 /* frame-pointer */
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#define ra $31 /* return address */
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#define pc $pc /* pc, used on mips16 */
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#define fp0 $f0
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#define fp1 $f1
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/* Useful memory constants: */
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#ifndef __mips64
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#define K0BASE 0x80000000
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#define K1BASE 0xA0000000
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#define K0BASE_ADDR ((char *)K0BASE)
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#define K1BASE_ADDR ((char *)K1BASE)
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#else
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#define K0BASE 0xFFFFFFFF80000000
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#define K1BASE 0xFFFFFFFFA0000000
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#define K0BASE_ADDR ((char *)0xFFFFFFFF80000000LL)
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#define K1BASE_ADDR ((char *)0xFFFFFFFFA0000000LL)
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#endif
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#define PHYS_TO_K1(a) ((unsigned)(a) | K1BASE)
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/* Standard Co-Processor 0 registers */
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#define C0_COUNT $9 /* Count Register */
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#define C0_SR $12 /* Status Register */
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#define C0_CAUSE $13 /* last exception description */
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#define C0_EPC $14 /* Exception error address */
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#define C0_PRID $15 /* Processor Revision ID */
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#define C0_CONFIG $16 /* CPU configuration */
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/* Standard Processor Revision ID Register field offsets */
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#define PR_IMP 8
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/* Standard Config Register field offsets */
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#define CR_DB 4
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#define CR_IB 5
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#define CR_DC 6 /* NOTE v4121 semantics != 43,5xxx semantics */
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#define CR_IC 9 /* NOTE v4121 semantics != 43,5xxx semantics */
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#define CR_SC 17
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#define CR_SS 20
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#define CR_SB 22
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/* Standard Status Register bitmasks: */
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#define SR_CU1 0x20000000 /* Mark CP1 as usable */
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#define SR_FR 0x04000000 /* Enable MIPS III FP registers */
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#define SR_BEV 0x00400000 /* Controls location of exception vectors */
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#define SR_PE 0x00100000 /* Mark soft reset (clear parity error) */
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#define SR_KX 0x00000080 /* Kernel extended addressing enabled */
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#define SR_SX 0x00000040 /* Supervisor extended addressing enabled */
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#define SR_UX 0x00000020 /* User extended addressing enabled */
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#define SR_MSA 0x08000000 /* MSA ASE */
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/* Standard (R4000) cache operations. Taken from "MIPS R4000
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Microprocessor User's Manual" 2nd edition: */
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#define CACHE_I (0) /* primary instruction */
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#define CACHE_D (1) /* primary data */
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#define CACHE_SI (2) /* secondary instruction */
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#define CACHE_SD (3) /* secondary data (or combined instruction/data) */
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#define INDEX_INVALIDATE (0) /* also encodes WRITEBACK if CACHE_D or CACHE_SD */
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#define INDEX_LOAD_TAG (1)
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#define INDEX_STORE_TAG (2)
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#define CREATE_DIRTY_EXCLUSIVE (3) /* CACHE_D and CACHE_SD only */
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#define HIT_INVALIDATE (4)
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#define CACHE_FILL (5) /* CACHE_I only */
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#define HIT_WRITEBACK_INVALIDATE (5) /* CACHE_D and CACHE_SD only */
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#define HIT_WRITEBACK (6) /* CACHE_I, CACHE_D and CACHE_SD only */
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#define HIT_SET_VIRTUAL (7) /* CACHE_SI and CACHE_SD only */
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#define BUILD_CACHE_OP(o,c) (((o) << 2) | (c))
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/* Individual cache operations: */
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#define INDEX_INVALIDATE_I BUILD_CACHE_OP(INDEX_INVALIDATE,CACHE_I)
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#define INDEX_WRITEBACK_INVALIDATE_D BUILD_CACHE_OP(INDEX_INVALIDATE,CACHE_D)
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#define INDEX_INVALIDATE_SI BUILD_CACHE_OP(INDEX_INVALIDATE,CACHE_SI)
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#define INDEX_WRITEBACK_INVALIDATE_SD BUILD_CACHE_OP(INDEX_INVALIDATE,CACHE_SD)
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#define INDEX_LOAD_TAG_I BUILD_CACHE_OP(INDEX_LOAD_TAG,CACHE_I)
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#define INDEX_LOAD_TAG_D BUILD_CACHE_OP(INDEX_LOAD_TAG,CACHE_D)
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#define INDEX_LOAD_TAG_SI BUILD_CACHE_OP(INDEX_LOAD_TAG,CACHE_SI)
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#define INDEX_LOAD_TAG_SD BUILD_CACHE_OP(INDEX_LOAD_TAG,CACHE_SD)
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#define INDEX_STORE_TAG_I BUILD_CACHE_OP(INDEX_STORE_TAG,CACHE_I)
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#define INDEX_STORE_TAG_D BUILD_CACHE_OP(INDEX_STORE_TAG,CACHE_D)
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#define INDEX_STORE_TAG_SI BUILD_CACHE_OP(INDEX_STORE_TAG,CACHE_SI)
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#define INDEX_STORE_TAG_SD BUILD_CACHE_OP(INDEX_STORE_TAG,CACHE_SD)
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#define CREATE_DIRTY_EXCLUSIVE_D BUILD_CACHE_OP(CREATE_DIRTY_EXCLUSIVE,CACHE_D)
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#define CREATE_DIRTY_EXCLUSIVE_SD BUILD_CACHE_OP(CREATE_DIRTY_EXCLUSIVE,CACHE_SD)
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#define HIT_INVALIDATE_I BUILD_CACHE_OP(HIT_INVALIDATE,CACHE_I)
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#define HIT_INVALIDATE_D BUILD_CACHE_OP(HIT_INVALIDATE,CACHE_D)
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#define HIT_INVALIDATE_SI BUILD_CACHE_OP(HIT_INVALIDATE,CACHE_SI)
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#define HIT_INVALIDATE_SD BUILD_CACHE_OP(HIT_INVALIDATE,CACHE_SD)
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#define CACHE_FILL_I BUILD_CACHE_OP(CACHE_FILL,CACHE_I)
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#define HIT_WRITEBACK_INVALIDATE_D BUILD_CACHE_OP(HIT_WRITEBACK_INVALIDATE,CACHE_D)
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#define HIT_WRITEBACK_INVALIDATE_SD BUILD_CACHE_OP(HIT_WRITEBACK_INVALIDATE,CACHE_SD)
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#define HIT_WRITEBACK_I BUILD_CACHE_OP(HIT_WRITEBACK,CACHE_I)
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#define HIT_WRITEBACK_D BUILD_CACHE_OP(HIT_WRITEBACK,CACHE_D)
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#define HIT_WRITEBACK_SD BUILD_CACHE_OP(HIT_WRITEBACK,CACHE_SD)
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#define HIT_SET_VIRTUAL_SI BUILD_CACHE_OP(HIT_SET_VIRTUAL,CACHE_SI)
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#define HIT_SET_VIRTUAL_SD BUILD_CACHE_OP(HIT_SET_VIRTUAL,CACHE_SD)
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/*> EOF regs.S <*/
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