ref: e55cb65c247a9cdfa0528d34dec70d435898d098
dir: /sys/src/cmd/vi/mips.h/
/* * mipsim.h */ #include "/mips/include/ureg.h" #define USERADDR 0xC0000000 #define UREGADDR (USERADDR+BY2PG-4-0xA0) #define USER_REG(x) (UREGADDR+(ulong)(x)) #define REGOFF(x) (USER_REG(&((struct Ureg *) 0)->x)) typedef struct Registers Registers; typedef struct Segment Segment; typedef struct Memory Memory; typedef struct Mul Mul; typedef struct Mulu Mulu; typedef struct Inst Inst; typedef struct Icache Icache; typedef struct Tlb Tlb; typedef struct Breakpoint Breakpoint; enum { Instruction = 1, Read = 2, Write = 4, Access = 2|4, Equal = 4|8, }; struct Breakpoint { int type; /* Instruction/Read/Access/Write/Equal */ ulong addr; /* Place at address */ int count; /* To execute count times or value */ int done; /* How many times passed through */ Breakpoint *next; /* Link to next one */ }; enum { Iload, Istore, Iarith, Ibranch, Ireg, Isyscall, Ifloat, }; enum { Nmaxtlb = 64, }; struct Tlb { int on; /* Being updated */ int tlbsize; /* Number of entries */ ulong tlbent[Nmaxtlb]; /* Virtual address tags */ int hit; /* Number of successful tag matches */ int miss; /* Number of failed tag matches */ }; struct Icache { int on; /* Turned on */ int linesize; /* Line size in bytes */ int stall; /* Cache stalls */ int *lines; /* Tag array */ int* (*hash)(ulong); /* Hash function */ char *hashtext; /* What the function looks like */ }; struct Inst { void (*func)(ulong); char *name; int type; int count; int taken; int useddelay; }; struct Registers { ulong pc; ulong ir; Inst *ip; long r[32]; ulong mhi; ulong mlo; ulong fpsr; union { double fd[16]; float fl[32]; ulong di[32]; }; char ft[32]; }; enum { FPd = 0, FPs, FPmemory, }; #define dreg(r) ((r)>>1) struct Mulu { ulong lo; ulong hi; }; struct Mul { long lo; long hi; }; enum { MemRead, MemReadstring, MemWrite, }; enum { Stack, Text, Data, Bss, Nseg, }; struct Segment { short type; ulong base; ulong end; ulong fileoff; ulong fileend; int rss; int refs; uchar **table; }; struct Memory { Segment seg[Nseg]; }; void fatal(int, char*, ...); void run(void); void undef(ulong); void dumpreg(void); void dumpfreg(void); void dumpdreg(void); void* emalloc(ulong); void* erealloc(void*, ulong, ulong); void* vaddr(ulong); int badvaddr(ulong, int); void itrace(char *, ...); void segsum(void); void Ssyscall(ulong); char* memio(char*, ulong, int, int); ulong ifetch(ulong); ulong getmem_w(ulong); ushort getmem_h(ulong); void putmem_w(ulong, ulong); uchar getmem_b(ulong); void putmem_b(ulong, uchar); ulong getmem_4(ulong); ulong getmem_2(ulong); void putmem_h(ulong, short); Mul mul(long, long); Mulu mulu(ulong, ulong); void isum(void); void initicache(void); void updateicache(ulong addr); void tlbsum(void); long lnrand(long); void randseed(long, long); void cmd(void); void brkchk(ulong, int); void delbpt(char*); void breakpoint(char*, char*); char* nextc(char*); ulong expr(char*); void initmap(void); void inithdr(int); void initstk(int, char**); void reset(void); void dobplist(void); int _mipscoinst(Map*, uvlong, char*, int); void procinit(int); void printsource(long); void printparams(Symbol *, ulong); void printlocals(Symbol *, ulong); void stktrace(int); void iprofile(void); /* Globals */ Extern Registers reg; Extern Memory memory; Extern int text; Extern int trace; Extern int sysdbg; Extern int calltree; Extern Inst itab[]; Extern Inst ispec[]; Extern Icache icache; Extern Tlb tlb; Extern int count; Extern jmp_buf errjmp; Extern Breakpoint *bplist; Extern int atbpt; Extern int membpt; Extern int cmdcount; Extern int nopcount; Extern ulong dot; extern char *file; Extern Biobuf *bioout; Extern Biobuf *bin; Extern ulong *iprof; extern int datasize; Extern Map *symmap; Extern int rtrace; /* Plan9 Kernel constants */ #define BY2PG 4096 #define BY2WD 4 #define UTZERO 0x1000 #define STACKTOP 0x80000000 #define STACKSIZE 0x10000 #define PROFGRAN 4 /* Opcode decoders */ #define Getrsrt(s,t,i) s = (i>>21)&0x1f; t = (i>>16)&0x1f; #define Getrbrt(b,t,i) b = (i>>21)&0x1f; t = (i>>16)&0x1f; #define Get3(s, t, d, i) s = (i>>21)&0x1f; t = (i>>16)&0x1f; d = (i>>11)&0x1f; #define Getf3(s, t, d, i) s = (i>>11)&0x1f; t = (i>>16)&0x1f; d = (i>>6)&0x1f; #define Getf2(s, d, i) s = (i>>11)&0x1f; d = (i>>6)&0x1f; #define SpecialGetrtrd(t, d, i) t = (i>>16)&0x1f; d = (i>>11)&0x1f; #define INOPINST "nor" #define INOP 0x00000027 /* Instruction used as nop */ #define SIGNBIT 0x80000000 #define Iexec(ir) {Inst *i; i = &itab[(ir)>>26]; reg.ip = i; i->count++; (*i->func)(ir); } #define Statbra() reg.ip->taken++; if(reg.ir != INOP) reg.ip->useddelay++; #define FP_U 3 #define FP_L 1 #define FP_G 2 #define FP_E 0 #define FP_CBIT (1<<23)