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Diffstat (limited to 'sdk-modifications/include/mips.h')
| -rw-r--r-- | sdk-modifications/include/mips.h | 820 |
1 files changed, 820 insertions, 0 deletions
diff --git a/sdk-modifications/include/mips.h b/sdk-modifications/include/mips.h new file mode 100644 index 0000000..3792565 --- /dev/null +++ b/sdk-modifications/include/mips.h @@ -0,0 +1,820 @@ +/**************************************************************************
+* *
+* PROJECT : MIPS port for uC/OS-II *
+* *
+* MODULE : MIPS.h *
+* *
+* AUTHOR : Michael Anburaj *
+* URL : http://geocities.com/michaelanburaj/ *
+* EMAIL: michaelanburaj@hotmail.com *
+* *
+* PROCESSOR : MIPS 4Kc (32 bit RISC) - ATLAS board *
+* *
+* TOOL-CHAIN : SDE & Cygnus *
+* *
+* DESCRIPTION : *
+* MIPS processor definitions. *
+* The basic CPU definitions are found in the file archdefs.h, which *
+* is included by mips.h. *
+* *
+* mips.h implements aliases for some of the definitions in archdefs.h *
+* and adds various definitions. *
+* *
+**************************************************************************/
+
+
+#ifndef __MIPS_H__
+#define __MIPS_H__
+
+#include "archdefs.h"
+
+
+/* ********************************************************************* */
+/* Module configuration */
+
+
+/* ********************************************************************* */
+/* Interface macro & data definition */
+
+#ifndef MSK
+#define MSK(n) ((1 << (n)) - 1)
+#endif
+
+/* CPU registers */
+#define SYS_CPUREG_ZERO 0
+#define SYS_CPUREG_AT 1
+#define SYS_CPUREG_V0 2
+#define SYS_CPUREG_V1 3
+#define SYS_CPUREG_A0 4
+#define SYS_CPUREG_A1 5
+#define SYS_CPUREG_A2 6
+#define SYS_CPUREG_A3 7
+#define SYS_CPUREG_T0 8
+#define SYS_CPUREG_T1 9
+#define SYS_CPUREG_T2 10
+#define SYS_CPUREG_T3 11
+#define SYS_CPUREG_T4 12
+#define SYS_CPUREG_T5 13
+#define SYS_CPUREG_T6 14
+#define SYS_CPUREG_T7 15
+#define SYS_CPUREG_S0 16
+#define SYS_CPUREG_S1 17
+#define SYS_CPUREG_S2 18
+#define SYS_CPUREG_S3 19
+#define SYS_CPUREG_S4 20
+#define SYS_CPUREG_S5 21
+#define SYS_CPUREG_S6 22
+#define SYS_CPUREG_S7 23
+#define SYS_CPUREG_T8 24
+#define SYS_CPUREG_T9 25
+#define SYS_CPUREG_K0 26
+#define SYS_CPUREG_K1 27
+#define SYS_CPUREG_GP 28
+#define SYS_CPUREG_SP 29
+#define SYS_CPUREG_S8 30
+#define SYS_CPUREG_FP SYS_CPUREG_S8
+#define SYS_CPUREG_RA 31
+
+
+/* CPU register fp ($30) has an alias s8 */
+#define s8 fp
+
+
+/* Aliases for System Control Coprocessor (CP0) registers */
+#define C0_INDEX C0_Index
+#define C0_RANDOM C0_Random
+#define C0_ENTRYLO0 C0_EntryLo0
+#define C0_ENTRYLO1 C0_EntryLo1
+#define C0_CONTEXT C0_Context
+#define C0_PAGEMASK C0_PageMask
+#define C0_WIRED C0_Wired
+#define C0_BADVADDR C0_BadVAddr
+#define C0_COUNT C0_Count
+#define C0_ENTRYHI C0_EntryHi
+#define C0_COMPARE C0_Compare
+#define C0_STATUS C0_Status
+#define C0_CAUSE C0_Cause
+
+#ifdef C0_PRID /* ArchDefs has an obsolete def. of C0_PRID */
+#undef C0_PRID
+#endif
+#define C0_PRID C0_PRId
+
+#define C0_CONFIG C0_Config
+#define C0_CONFIG1 C0_Config1
+#define C0_LLADDR C0_LLAddr
+#define C0_WATCHLO C0_WatchLo
+#define C0_WATCHHI C0_WatchHi
+#define C0_DEBUG C0_Debug
+#define C0_PERFCNT C0_PerfCnt
+#define C0_ERRCTL C0_ErrCtl
+#define C0_CACHEERR C0_CacheErr
+#define C0_TAGLO C0_TagLo
+#define C0_DATALO C0_DataLo
+#define C0_TAGHI C0_TagHi
+#define C0_DATAHI C0_DataHi
+#define C0_ERROREPC C0_ErrorEPC
+#if 0
+#define C0_DESAVE C0_DESAVE
+#define C0_EPC C0_EPC
+#define C0_DEPC C0_DEPC
+#endif
+
+/* System Control Coprocessor (CP0) registers select fields */
+#define C0_INDEX_SEL 0 /* TLB Index */
+#define C0_RANDOM_SEL 0 /* TLB Random */
+#define C0_TLBLO0_SEL 0 /* TLB EntryLo0 */
+#define C0_TLBLO1_SEL 0 /* TLB EntryLo1 */
+#define C0_CONTEXT_SEL 0 /* Context */
+#define C0_PAGEMASK_SEL 0 /* TLB PageMask */
+#define C0_WIRED_SEL 0 /* TLB Wired */
+#define C0_BADVADDR_SEL 0 /* Bad Virtual Address */
+#define C0_COUNT_SEL 0 /* Count */
+#define C0_ENTRYHI_SEL 0 /* TLB EntryHi */
+#define C0_COMPARE_SEL 0 /* Compare */
+#define C0_STATUS_SEL 0 /* Processor Status */
+#define C0_CAUSE_SEL 0 /* Exception Cause */
+#define C0_EPC_SEL 0 /* Exception PC */
+#define C0_PRID_SEL 0 /* Processor Revision Indentifier */
+#define C0_CONFIG_SEL 0 /* Config */
+#define C0_CONFIG1_SEL 1 /* Config1 */
+#define C0_LLADDR_SEL 0 /* LLAddr */
+#define C0_WATCHLO_SEL 0 /* WatchpointLo */
+#define C0_WATCHHI_SEL 0 /* WatchpointHi */
+#define C0_DEBUG_SEL 0 /* EJTAG Debug Register */
+#define C0_DEPC_SEL 0 /* Program counter at last EJTAG debug exception */
+#define C0_PERFCNT_SEL 0 /* Performance counter interface */
+#define C0_ERRCTL_SEL 0 /* ERRCTL */
+#define C0_CACHEERR_SEL 0 /* CacheErr */
+#define C0_TAGLO_SEL 0 /* TagLo */
+#define C0_DATALO_SEL 1 /* DataLo */
+#define C0_DTAGLO_SEL 2 /* DTagLo */
+#define C0_TAGHI_SEL 0 /* TagHi */
+#define C0_DATAHI_SEL 1 /* DataHi */
+#define C0_DTAGHI_SEL 2 /* DTagHi */
+#define C0_ERROREPC_SEL 0 /* ErrorEPC */
+#define C0_DESAVE_SEL 0 /* EJTAG dbg exc. save register */
+
+
+/* C0_CONFIG register encoding */
+
+#define C0_CONFIG_M_SHF S_ConfigMore
+#define C0_CONFIG_M_MSK M_ConfigMore
+#define C0_CONFIG_M_BIT C0_CONFIG_M_MSK
+
+#define C0_CONFIG_BE_SHF S_ConfigBE
+#define C0_CONFIG_BE_MSK M_ConfigBE
+#define C0_CONFIG_BE_BIT C0_CONFIG_BE_MSK
+
+#define C0_CONFIG_AT_SHF S_ConfigAT
+#define C0_CONFIG_AT_MSK M_ConfigAT
+#define C0_CONFIG_AT_MIPS32 K_ConfigAT_MIPS32
+#define C0_CONFIG_AT_MIPS64_32ADDR K_ConfigAT_MIPS64S
+#define C0_CONFIG_AT_MIPS64 K_ConfigAT_MIPS64
+
+#define C0_CONFIG_AR_SHF S_ConfigAR
+#define C0_CONFIG_AR_MSK M_ConfigAR
+
+#define C0_CONFIG_MT_SHF S_ConfigMT
+#define C0_CONFIG_MT_MSK M_ConfigMT
+#define C0_CONFIG_MT_NONE K_ConfigMT_NoMMU
+#define C0_CONFIG_MT_TLB K_ConfigMT_TLBMMU
+#define C0_CONFIG_MT_BAT K_ConfigMT_BATMMU
+#define C0_CONFIG_MT_NON_STD K_ConfigMT_FMMMU
+
+#define C0_CONFIG_K0_SHF S_ConfigK0
+#define C0_CONFIG_K0_MSK M_ConfigK0
+#define C0_CONFIG_K0_WTHRU_NOALLOC K_CacheAttrCWTnWA
+#define C0_CONFIG_K0_WTHRU_ALLOC K_CacheAttrCWTWA
+#define C0_CONFIG_K0_UNCACHED K_CacheAttrU
+#define C0_CONFIG_K0_NONCOHERENT K_CacheAttrCN
+#define C0_CONFIG_K0_COHERENTXCL K_CacheAttrCCE
+#define C0_CONFIG_K0_COHERENTXCLW K_CacheAttrCCS
+#define C0_CONFIG_K0_COHERENTUPD K_CacheAttrCCU
+#define C0_CONFIG_K0_UNCACHED_ACCEL K_CacheAttrUA
+
+
+/* WC field.
+ *
+ * This feature is present specifically to support configuration
+ * testing of the core in a lead vehicle, and is not supported
+ * in any other environment. Attempting to use this feature
+ * outside of the scope of a lead vehicle is a violation of the
+ * MIPS Architecture, and may cause unpredictable operation of
+ * the processor.
+ */
+#define C0_CONFIG_WC_SHF 19
+#define C0_CONFIG_WC_MSK (MSK(1) << C0_CONFIG_WC_SHF)
+#define C0_CONFIG_WC_BIT C0_CONFIG_WC_MSK
+
+
+/* C0_CONFIG1 register encoding */
+
+#define C0_CONFIG1_MMUSIZE_SHF S_Config1MMUSize
+#define C0_CONFIG1_MMUSIZE_MSK M_Config1MMUSize
+
+#define C0_CONFIG1_IS_SHF S_Config1IS
+#define C0_CONFIG1_IS_MSK M_Config1IS
+
+#define C0_CONFIG1_IL_SHF S_Config1IL
+#define C0_CONFIG1_IL_MSK M_Config1IL
+
+#define C0_CONFIG1_IA_SHF S_Config1IA
+#define C0_CONFIG1_IA_MSK M_Config1IA
+
+#define C0_CONFIG1_DS_SHF S_Config1DS
+#define C0_CONFIG1_DS_MSK M_Config1DS
+
+#define C0_CONFIG1_DL_SHF S_Config1DL
+#define C0_CONFIG1_DL_MSK M_Config1DL
+
+#define C0_CONFIG1_DA_SHF S_Config1DA
+#define C0_CONFIG1_DA_MSK M_Config1DA
+
+#define C0_CONFIG1_WR_SHF S_Config1WR
+#define C0_CONFIG1_WR_MSK M_Config1WR
+#define C0_CONFIG1_WR_BIT C0_CONFIG1_WR_MSK
+
+#define C0_CONFIG1_CA_SHF S_Config1CA
+#define C0_CONFIG1_CA_MSK M_Config1CA
+#define C0_CONFIG1_CA_BIT C0_CONFIG1_CA_MSK
+
+#define C0_CONFIG1_EP_SHF S_Config1EP
+#define C0_CONFIG1_EP_MSK M_Config1EP
+#define C0_CONFIG1_EP_BIT C0_CONFIG1_EP_MSK
+
+#define C0_CONFIG1_FP_SHF S_Config1FP
+#define C0_CONFIG1_FP_MSK M_Config1FP
+#define C0_CONFIG1_FP_BIT C0_CONFIG1_FP_MSK
+
+
+/* C0_STATUS register encoding */
+
+#define C0_STATUS_CU3_SHF S_StatusCU3
+#define C0_STATUS_CU3_MSK M_StatusCU3
+#define C0_STATUS_CU3_BIT C0_STATUS_CU3_MSK
+
+#define C0_STATUS_CU2_SHF S_StatusCU2
+#define C0_STATUS_CU2_MSK M_StatusCU2
+#define C0_STATUS_CU2_BIT C0_STATUS_CU2_MSK
+
+#define C0_STATUS_CU1_SHF S_StatusCU1
+#define C0_STATUS_CU1_MSK M_StatusCU1
+#define C0_STATUS_CU1_BIT C0_STATUS_CU1_MSK
+
+#define C0_STATUS_CU0_SHF S_StatusCU1
+#define C0_STATUS_CU0_MSK M_StatusCU1
+#define C0_STATUS_CU0_BIT C0_STATUS_CU0_MSK
+
+#define C0_STATUS_RP_SHF S_StatusRP
+#define C0_STATUS_RP_MSK M_StatusRP
+#define C0_STATUS_RP_BIT C0_STATUS_RP_MSK
+
+#define C0_STATUS_FR_SHF S_StatusFR
+#define C0_STATUS_FR_MSK M_StatusFR
+#define C0_STATUS_FR_BIT C0_STATUS_FR_MSK
+
+#define C0_STATUS_RE_SHF S_StatusRE
+#define C0_STATUS_RE_MSK M_StatusRE
+#define C0_STATUS_RE_BIT C0_STATUS_RE_MSK
+
+#define C0_STATUS_BEV_SHF S_StatusBEV
+#define C0_STATUS_BEV_MSK M_StatusBEV
+#define C0_STATUS_BEV_BIT C0_STATUS_BEV_MSK
+
+#define C0_STATUS_TS_SHF S_StatusTS
+#define C0_STATUS_TS_MSK M_StatusTS
+#define C0_STATUS_TS_BIT C0_STATUS_TS_MSK
+
+#define C0_STATUS_SR_SHF S_StatusSR
+#define C0_STATUS_SR_MSK M_StatusSR
+#define C0_STATUS_SR_BIT C0_STATUS_SR_MSK
+
+#define C0_STATUS_NMI_SHF S_StatusNMI
+#define C0_STATUS_NMI_MSK M_StatusNMI
+#define C0_STATUS_NMI_BIT C0_STATUS_NMI_MSK
+
+#define C0_STATUS_IM_SHF S_StatusIM
+#define C0_STATUS_IM_MSK M_StatusIM
+/* Note that the the definitions below indicate the interrupt number
+ * rather than the mask.
+ * (0..1 for SW interrupts and 2...7 for HW interrupts)
+ */
+#define C0_STATUS_IM_SW0 (S_StatusIM0 - S_StatusIM)
+#define C0_STATUS_IM_SW1 (S_StatusIM1 - S_StatusIM)
+#define C0_STATUS_IM_HW0 (S_StatusIM2 - S_StatusIM)
+#define C0_STATUS_IM_HW1 (S_StatusIM3 - S_StatusIM)
+#define C0_STATUS_IM_HW2 (S_StatusIM4 - S_StatusIM)
+#define C0_STATUS_IM_HW3 (S_StatusIM5 - S_StatusIM)
+#define C0_STATUS_IM_HW4 (S_StatusIM6 - S_StatusIM)
+#define C0_STATUS_IM_HW5 (S_StatusIM7 - S_StatusIM)
+
+/* Max interrupt code */
+#define C0_STATUS_IM_MAX C0_STATUS_IM_HW5
+
+#define C0_STATUS_KSU_SHF S_StatusKSU
+#define C0_STATUS_KSU_MSK M_StatusKSU
+
+#define C0_STATUS_UM_SHF S_StatusUM
+#define C0_STATUS_UM_MSK M_StatusUM
+#define C0_STATUS_UM_BIT C0_STATUS_UM_MSK
+
+#define C0_STATUS_ERL_SHF S_StatusERL
+#define C0_STATUS_ERL_MSK M_StatusERL
+#define C0_STATUS_ERL_BIT C0_STATUS_ERL_MSK
+
+#define C0_STATUS_EXL_SHF S_StatusEXL
+#define C0_STATUS_EXL_MSK M_StatusEXL
+#define C0_STATUS_EXL_BIT C0_STATUS_EXL_MSK
+
+#define C0_STATUS_IE_SHF S_StatusIE
+#define C0_STATUS_IE_MSK M_StatusIE
+#define C0_STATUS_IE_BIT C0_STATUS_IE_MSK
+
+
+/* C0_PRID register encoding */
+
+#define C0_PRID_OPT_SHF S_PRIdCoOpt
+#define C0_PRID_OPT_MSK M_PRIdCoOpt
+
+#define C0_PRID_COMP_SHF S_PRIdCoID
+#define C0_PRID_COMP_MSK M_PRIdCoID
+#define C0_PRID_COMP_MIPS K_PRIdCoID_MIPS
+#define C0_PRID_COMP_NOT_MIPS32_64 0
+
+#define C0_PRID_PRID_SHF S_PRIdImp
+#define C0_PRID_PRID_MSK M_PRIdImp
+
+/* Jade */
+#define C0_PRID_PRID_4Kc K_PRIdImp_Jade
+#define C0_PRID_PRID_4Kmp K_PRIdImp_JadeLite /* 4Km/4Kp */
+/* Emerald */
+#define C0_PRID_PRID_4KEc K_PRIdImp_4KEc
+#define C0_PRID_PRID_4KEmp K_PRIdImp_4KEmp
+/* Coral */
+#define C0_PRID_PRID_4KSc K_PRIdImp_4KSc
+/* Opal */
+#define C0_PRID_PRID_5K K_PRIdImp_Opal
+/* Ruby */
+#define C0_PRID_PRID_20Kc K_PRIdImp_Ruby
+/* Other CPUs */
+#define C0_PRID_PRID_R4000 K_PRIdImp_R4000
+#define C0_PRID_PRID_RM52XX K_PRIdImp_R5200
+#define C0_PRID_PRID_RM70XX 0x27
+
+#define C0_PRID_REV_SHF S_PRIdRev
+#define C0_PRID_REV_MSK M_PRIdRev
+
+
+#define MIPS_4Kc ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_4Kc << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_4Kmp ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_4Kmp << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_4KEc ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_4KEc << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_4KEmp ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_4KEmp << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_4KSc ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_4KSc << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_5K ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_5K << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define MIPS_20Kc ( (C0_PRID_COMP_MIPS << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_20Kc << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define QED_RM52XX ( (C0_PRID_COMP_NOT_MIPS32_64 << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_RM52XX << \
+ C0_PRID_PRID_SHF) \
+ )
+
+#define QED_RM70XX ( (C0_PRID_COMP_NOT_MIPS32_64 << \
+ C0_PRID_COMP_SHF) | \
+ (C0_PRID_PRID_RM70XX << \
+ C0_PRID_PRID_SHF) \
+ )
+
+/* C0_ENTRYHI register encoding */
+
+#define C0_ENTRYHI_VPN2_SHF S_EntryHiVPN2
+#define C0_ENTRYHI_VPN2_MSK M_EntryHiVPN2
+
+#define C0_ENTRYHI_ASID_SHF S_EntryHiASID
+#define C0_ENTRYHI_ASID_MSK M_EntryHiASID
+
+
+/* C0_CAUSE register encoding */
+
+#define C0_CAUSE_BD_SHF S_CauseBD
+#define C0_CAUSE_BD_MSK M_CauseBD
+#define C0_CAUSE_BD_BIT C0_CAUSE_BD_MSK
+
+#define C0_CAUSE_CE_SHF S_CauseCE
+#define C0_CAUSE_CE_MSK M_CauseCE
+
+#define C0_CAUSE_IV_SHF S_CauseIV
+#define C0_CAUSE_IV_MSK M_CauseIV
+#define C0_CAUSE_IV_BIT C0_CAUSE_IV_MSK
+
+#define C0_CAUSE_WP_SHF S_CauseWP
+#define C0_CAUSE_WP_MSK M_CauseWP
+#define C0_CAUSE_WP_BIT C0_CAUSE_WP_MSK
+
+#define C0_CAUSE_IP_SHF S_CauseIP
+#define C0_CAUSE_IP_MSK M_CauseIP
+
+#define C0_CAUSE_CODE_SHF S_CauseExcCode
+#define C0_CAUSE_CODE_MSK M_CauseExcCode
+
+#define C0_CAUSE_CODE_INT EX_INT
+#define C0_CAUSE_CODE_MOD EX_MOD
+#define C0_CAUSE_CODE_TLBL EX_TLBL
+#define C0_CAUSE_CODE_TLBS EX_TLBS
+#define C0_CAUSE_CODE_ADEL EX_ADEL
+#define C0_CAUSE_CODE_ADES EX_ADES
+#define C0_CAUSE_CODE_IBE EX_IBE
+#define C0_CAUSE_CODE_DBE EX_DBE
+#define C0_CAUSE_CODE_SYS EX_SYS
+#define C0_CAUSE_CODE_BP EX_BP
+#define C0_CAUSE_CODE_RI EX_RI
+#define C0_CAUSE_CODE_CPU EX_CPU
+#define C0_CAUSE_CODE_OV EX_OV
+#define C0_CAUSE_CODE_TR EV_TR
+#define C0_CAUSE_CODE_FPE EX_FPE
+#define C0_CAUSE_CODE_WATCH EX_WATCH
+#define C0_CAUSE_CODE_MCHECK EX_MCHECK
+
+/* Max cause code */
+#define C0_CAUSE_CODE_MAX EX_MCHECK
+
+
+/* C0_PAGEMASK register encoding */
+#define C0_PAGEMASK_MASK_SHF S_PageMaskMask
+#define C0_PAGEMASK_MASK_MSK M_PageMaskMask
+#define C0_PAGEMASK_MASK_4K K_PageMask4K
+#define C0_PAGEMASK_MASK_16K K_PageMask16K
+#define C0_PAGEMASK_MASK_64K K_PageMask64K
+#define C0_PAGEMASK_MASK_256K K_PageMask256K
+#define C0_PAGEMASK_MASK_1M K_PageMask1M
+#define C0_PAGEMASK_MASK_4M K_PageMask4M
+#define C0_PAGEMASK_MASK_16M K_PageMask16M
+
+
+/* C0_ENTRYLO0 register encoding (equiv. to C0_ENTRYLO1) */
+#define C0_ENTRYLO0_PFN_SHF S_EntryLoPFN
+#define C0_ENTRYLO0_PFN_MSK M_EntryLoPFN
+
+#define C0_ENTRYLO0_C_SHF S_EntryLoC
+#define C0_ENTRYLO0_C_MSK M_EntryLoC
+
+#define C0_ENTRYLO0_D_SHF S_EntryLoD
+#define C0_ENTRYLO0_D_MSK M_EntryLoD
+
+#define C0_ENTRYLO0_V_SHF S_EntryLoV
+#define C0_ENTRYLO0_V_MSK M_EntryLoV
+
+#define C0_ENTRYLO0_G_SHF S_EntryLoG
+#define C0_ENTRYLO0_G_MSK M_EntryLoG
+
+
+/* FPU (CP1) FIR register encoding */
+#define C1_FIR_3D_SHF S_FIRConfig3D
+#define C1_FIR_3D_MSK M_FIRConfig3D
+
+#define C1_FIR_PS_SHF S_FIRConfigPS
+#define C1_FIR_PS_MSK M_FIRConfigPS
+
+#define C1_FIR_D_SHF S_FIRConfigD
+#define C1_FIR_D_MSK M_FIRConfigD
+
+#define C1_FIR_S_SHF S_FIRConfigS
+#define C1_FIR_S_MSK M_FIRConfigS
+
+#define C1_FIR_PRID_SHF S_FIRImp
+#define C1_FIR_PRID_MSK M_FIRImp
+
+#define C1_FIR_REV_SHF S_FIRRev
+#define C1_FIR_REV_MSK M_FIRRev
+
+
+/* FPU (CP1) FCSR control/status register */
+#define C1_FCSR_FCC_SHF S_FCSRFCC7_1
+#define C1_FCSR_FCC_MSK M_FCSRFCC7_1
+
+#define C1_FCSR_FS_SHF S_FCSRFS
+#define C1_FCSR_FS_MSK M_FCSRFS
+#define C1_FCSR_FS_BIT C1_FCSR_FS_MSK
+
+#define C1_FCSR_CC_SHF S_FCSRCC
+#define C1_FCSR_CC_MSK M_FCSRCC
+
+#define C1_FCSR_IMPL_SHF S_FCSRImpl
+#define C1_FCSR_IMPL_MSK M_FCSRImpl
+
+#define C1_FCSR_EXC_SHF S_FCSRExc
+#define C1_FCSR_EXC_MSK M_FCSRExc
+
+#define C1_FCSR_ENA_SHF S_FCSREna
+#define C1_FCSR_ENA_MSK M_FCSREna
+
+#define C1_FCSR_FLG_SHF S_FCSRFlg
+#define C1_FCSR_FLG_MSK M_FCSRFlg
+
+#define C1_FCSR_RM_SHF S_FCSRRM
+#define C1_FCSR_RM_MSK M_FCSRRM
+#define C1_FCSR_RM_RN K_FCSRRM_RN
+#define C1_FCSR_RM_RZ K_FCSRRM_RZ
+#define C1_FCSR_RM_RP K_FCSRRM_RP
+#define C1_FCSR_RM_RM K_FCSRRM_RM
+
+
+
+/* cache operations */
+
+#define CACHE_OP( code, type ) ( ((code) << 2) | (type) )
+
+#define ICACHE_INDEX_INVALIDATE CACHE_OP(0x0, 0)
+#define ICACHE_INDEX_LOAD_TAG CACHE_OP(0x1, 0)
+#define ICACHE_INDEX_STORE_TAG CACHE_OP(0x2, 0)
+#define DCACHE_INDEX_WRITEBACK_INVALIDATE CACHE_OP(0x0, 1)
+#define DCACHE_INDEX_LOAD_TAG CACHE_OP(0x1, 1)
+#define DCACHE_INDEX_STORE_TAG CACHE_OP(0x2, 1)
+#define SCACHE_INDEX_STORE_TAG CACHE_OP(0x2, 3)
+
+#define ICACHE_ADDR_HIT_INVALIDATE CACHE_OP(0x4, 0)
+#define ICACHE_ADDR_FILL CACHE_OP(0x5, 0)
+#define ICACHE_ADDR_FETCH_LOCK CACHE_OP(0x7, 0)
+#define DCACHE_ADDR_HIT_INVALIDATE CACHE_OP(0x4, 1)
+#define DCACHE_ADDR_HIT_WRITEBACK_INVALIDATE CACHE_OP(0x5, 1)
+#define DCACHE_ADDR_HIT_WRITEBACK CACHE_OP(0x6, 1)
+#define DCACHE_ADDR_FETCH_LOCK CACHE_OP(0x7, 1)
+
+#define SCACHE_ADDR_HIT_WRITEBACK_INVALIDATE CACHE_OP(0x5, 3)
+
+/* Workaround for bug in early revisions of MIPS 4K family of
+ * processors. Only relevant in early engineering samples of test
+ * chips (RTL revision <= 3.0).
+ *
+ * The bug is described in :
+ *
+ * MIPS32 4K(tm) Processor Core Family RTL Errata Sheet
+ * MIPS Document No: MD00003
+ *
+ * The bug is identified as : C16
+ */
+#ifndef SET_MIPS0
+#define SET_MIPS0()
+#define SET_PUSH()
+#define SET_POP()
+#endif
+#define ICACHE_INVALIDATE_WORKAROUND(reg) \
+SET_PUSH(); \
+SET_MIPS0(); \
+ la reg, 999f; \
+SET_POP(); \
+ cache ICACHE_ADDR_FILL, 0(reg); \
+ sync; \
+ nop; nop; nop; nop; \
+999:
+
+/* EMPTY_PIPELINE is used for the below cache invalidation operations.
+ * When $I is invalidated, there will still be operations in the
+ * pipeline. We make sure these are 'nop' operations.
+ */
+#define EMPTY_PIPELINE nop; nop; nop; nop
+
+#define ICACHE_INDEX_INVALIDATE_OP(index,scratch) \
+ ICACHE_INVALIDATE_WORKAROUND(scratch); \
+ cache ICACHE_INDEX_INVALIDATE, 0(index); \
+ EMPTY_PIPELINE
+
+#define ICACHE_ADDR_INVALIDATE_OP(addr,scratch) \
+ ICACHE_INVALIDATE_WORKAROUND(scratch); \
+ cache ICACHE_ADDR_HIT_INVALIDATE, 0(addr); \
+ EMPTY_PIPELINE
+
+/* The sync used in the below macro is there in case we are installing
+ * a new instruction (flush $D, sync, invalidate $I sequence).
+ */
+#define SCACHE_ADDR_HIT_WB_INVALIDATE_OP(reg) \
+ cache SCACHE_ADDR_HIT_WRITEBACK_INVALIDATE, 0(reg); \
+ sync; \
+ EMPTY_PIPELINE
+
+/* Config1 cache field decoding */
+#define CACHE_CALC_SPW(s) ( 64 << (s) )
+#define CACHE_CALC_LS(l) ( (l) ? 2 << (l) : 0 )
+#define CACHE_CALC_BPW(l,s) ( CACHE_CALC_LS(l) * CACHE_CALC_SPW(s) )
+#define CACHE_CALC_ASSOC(a) ( (a) + 1 )
+
+
+/**** Move from/to Coprocessor operations ****/
+
+/* We use ssnop instead of nop operations in order to handle
+ * superscalar CPUs.
+ * The "sll zero,zero,1" notation is compiler backwards compatible.
+ */
+#define SSNOP sll zero,zero,1
+#define NOPS SSNOP; SSNOP; SSNOP; SSNOP
+
+#define MFLO(dst) \
+ mflo dst;\
+ NOPS
+
+/* Workaround for bug in early revisions of MIPS 4K family of
+ * processors.
+ *
+ * This concerns the nop instruction before mtc0 in the
+ * MTC0 macro below.
+ *
+ * The bug is described in :
+ *
+ * MIPS32 4K(tm) Processor Core Family RTL Errata Sheet
+ * MIPS Document No: MD00003
+ *
+ * The bug is identified as : C27
+ */
+
+#define MTC0(src, dst) \
+ nop; \
+ mtc0 src,dst;\
+ NOPS
+
+#define DMTC0(src, dst) \
+ nop; \
+ dmtc0 src,dst;\
+ NOPS
+
+#define MFC0(dst, src) \
+ mfc0 dst,src;\
+ NOPS
+
+#define DMFC0(dst, src) \
+ dmfc0 dst,src;\
+ NOPS
+
+#define MFC0_SEL_OPCODE(dst, src, sel)\
+ .##word (0x40000000 | ((dst)<<16) | ((src)<<11) | (sel));\
+ NOPS
+
+#define MTC0_SEL_OPCODE(dst, src, sel)\
+ .##word (0x40800000 | ((dst)<<16) | ((src)<<11) | (sel));\
+ NOPS
+
+#define LDC1(dst, src, offs)\
+ .##word (0xd4000000 | ((src)<<21) | ((dst)<<16) | (offs))
+
+#define SDC1(src, dst, offs)\
+ .##word (0xf4000000 | ((dst)<<21) | ((src)<<16) | (offs))
+
+
+/* Instruction opcode fields */
+#define OPC_SPECIAL 0x0
+#define OPC_REGIM 0x1
+#define OPC_J 0x2
+#define OPC_JAL 0x3
+#define OPC_BEQ 0x4
+#define OPC_BNE 0x5
+#define OPC_BLEZ 0x6
+#define OPC_BGTZ 0x7
+#define OPC_COP1 0x11
+#define OPC_JALX 0x1D
+#define OPC_BEQL 0x14
+#define OPC_BNEL 0x15
+#define OPC_BLEZL 0x16
+#define OPC_BGTZL 0x17
+
+/* Instruction function fields */
+#define FUNC_JR 0x8
+#define FUNC_JALR 0x9
+
+/* Instruction rt fields */
+#define RT_BLTZ 0x0
+#define RT_BGEZ 0x1
+#define RT_BLTZL 0x2
+#define RT_BGEZL 0x3
+#define RT_BLTZAL 0x10
+#define RT_BGEZAL 0x11
+#define RT_BLTZALL 0x12
+#define RT_BGEZALL 0x13
+
+/* Instruction rs fields */
+#define RS_BC1 0x08
+
+/* Access macros for instruction fields */
+#define MIPS_OPCODE( instr) ((instr) >> 26)
+#define MIPS_FUNCTION(instr) ((instr) & MSK(6))
+#define MIPS_RT(instr) (((instr) >> 16) & MSK(5))
+#define MIPS_RS(instr) (((instr) >> 21) & MSK(5))
+#define MIPS_OFFSET(instr) ((instr) & 0xFFFF)
+#define MIPS_TARGET(instr) ((instr) & MSK(26))
+
+/* Instructions */
+#define OPCODE_DERET 0x4200001f
+#define OPCODE_BREAK 0x0005000d
+#define OPCODE_NOP 0
+#define OPCODE_JUMP(addr) ( (OPC_J << 26) | (((addr) >> 2) & 0x3FFFFFF) )
+
+#define DERET .##word OPCODE_DERET
+
+/* MIPS16e opcodes and instruction field access macros */
+
+#define MIPS16E_OPCODE(inst) (((inst) >> 11) & 0x1f)
+#define MIPS16E_I8_FUNCTION(inst) (((inst) >> 8) & 0x7)
+#define MIPS16E_X(inst) (((inst) >> 26) & 0x1)
+#define MIPS16E_RR_FUNCTION(inst) (((inst) >> 0) & 0x1f)
+#define MIPS16E_RY(inst) (((inst) >> 5) & 0x3)
+#define MIPS16E_OPC_EXTEND 0x1e
+#define MIPS16E_OPC_JAL_X 0x03
+#define MIPS16E_OPC_B 0x02
+#define MIPS16E_OPC_BEQZ 0x04
+#define MIPS16E_OPC_BNEZ 0x05
+#define MIPS16E_OPC_I8 0x0c
+#define MIPS16E_I8_FUNC_BTEQZ 0x00
+#define MIPS16E_I8_FUNC_BTNEZ 0x01
+#define MIPS16E_X_JALX 0x01
+#define MIPS16E_OPC_RR 0x1d
+#define MIPS16E_RR_FUNC_JALRC 0x00
+#define MIPS16E_RR_RY_JRRX 0x00
+#define MIPS16E_RR_RY_JRRA 0x01
+#define MIPS16E_RR_RY_JALR 0x02
+#define MIPS16E_RR_RY_JRCRX 0x04
+#define MIPS16E_RR_RY_JRCRA 0x05
+#define MIPS16E_RR_RY_JALRC 0x06
+
+#define MIPS16E_OPCODE_BREAK 0xE805
+#define MIPS16E_OPCODE_NOP 0x6500
+
+/* MIPS reset vector */
+#define MIPS_RESET_VECTOR 0x1fc00000
+
+/* Clock periods per count register increment */
+#define MIPS4K_COUNT_CLK_PER_CYCLE 2
+#define MIPS5K_COUNT_CLK_PER_CYCLE 2
+#define MIPS20Kc_COUNT_CLK_PER_CYCLE 1
+
+
+/**** MIPS 4K/5K families specific fields of CONFIG register ****/
+
+#define C0_CONFIG_MIPS4K5K_K23_SHF S_ConfigK23
+#define C0_CONFIG_MIPS4K5K_K23_MSK (MSK(3) << C0_CONFIG_MIPS4K5K_K23_SHF)
+
+#define C0_CONFIG_MIPS4K5K_KU_SHF S_ConfigKU
+#define C0_CONFIG_MIPS4K5K_KU_MSK (MSK(3) << C0_CONFIG_MIPS4K5K_KU_SHF)
+
+
+/**** MIPS 20Kc specific fields of CONFIG register ****/
+
+#define C0_CONFIG_MIPS20KC_EC_SHF 28
+#define C0_CONFIG_MIPS20KC_EC_MSK (MSK(3) << C0_CONFIG_MIPS20KC_EC_SHF)
+
+#define C0_CONFIG_MIPS20KC_DD_SHF 27
+#define C0_CONFIG_MIPS20KC_DD_MSK (MSK(1) << C0_CONFIG_MIPS20KC_DD_SHF)
+#define C0_CONFIG_MIPS20KC_DD_BIT C0_CONFIG_MIPS20KC_DD_MSK
+
+#define C0_CONFIG_MIPS20KC_LP_SHF 26
+#define C0_CONFIG_MIPS20KC_LP_MSK (MSK(1) << C0_CONFIG_MIPS20KC_LP_SHF)
+#define C0_CONFIG_MIPS20KC_LP_BIT C0_CONFIG_MIPS20KC_LP_MSK
+
+#define C0_CONFIG_MIPS20KC_SP_SHF 25
+#define C0_CONFIG_MIPS20KC_SP_MSK (MSK(1) << C0_CONFIG_MIPS20KC_SP_SHF)
+#define C0_CONFIG_MIPS20KC_SP_BIT C0_CONFIG_MIPS20KC_SP_MSK
+
+#define C0_CONFIG_MIPS20KC_TI_SHF 24
+#define C0_CONFIG_MIPS20KC_TI_MSK (MSK(1) << C0_CONFIG_MIPS20KC_TI_SHF)
+#define C0_CONFIG_MIPS20KC_TI_BIT C0_CONFIG_MIPS20KC_TI_MSK
+
+
+/* ********************************************************************* */
+/* Interface function definition */
+
+
+/* ********************************************************************* */
+
+#endif /* #ifndef __MIPS_H__ */
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