sys/lib/acid/386

   1 // 386 support
   2
   3 defn acidinit()                 // Called after all the init modules are loaded
   4 {
   5         bplist = {};
   6         bpfmt = 'b';
   7         wplist = {};
   8         wpflush();
   9
  10         srcpath = {
  11                 "./",
  12                 "/sys/src/libc/port/",
  13                 "/sys/src/libc/9sys/",
  14                 "/sys/src/libc/386/"
  15         };
  16
  17         srcfiles = {};                  // list of loaded files
  18         srctext = {};                   // the text of the files
  19 }
  20
  21 defn linkreg(addr)
  22 {
  23         return 0;
  24 }
  25
  26 defn stk()                              // trace
  27 {
  28         _stk(*PC, *SP, 0, 0);
  29 }
  30
  31 defn lstk()                             // trace with locals
  32 {
  33         _stk(*PC, *SP, 0, 1);
  34 }
  35
  36 defn gpr()              // print general(hah hah!) purpose registers
  37 {
  38         print("AX\t", *AX, " BX\t", *BX, " CX\t", *CX, " DX\t", *DX, "\n");
  39         print("DI\t", *DI, " SI\t", *SI, " BP\t", *BP, "\n");
  40 }
  41
  42 defn spr()                              // print special processor registers
  43 {
  44         local pc;
  45         local cause;
  46
  47         pc = *PC;
  48         print("PC\t", pc, " ", fmt(pc, 'a'), "  ");
  49         pfl(pc);
  50         print("SP\t", *SP, " ECODE ", *ECODE, " EFLAG ", *EFLAGS, "\n");
  51         print("CS\t", *CS, " DS\t ", *DS, " SS\t", *SS, "\n");
  52         print("GS\t", *GS, " FS\t ", *FS, " ES\t", *ES, "\n");
  53
  54         cause = *TRAP;
  55         print("TRAP\t", cause, " ", reason(cause), "\n");
  56 }
  57
  58 defn regs()                             // print all registers
  59 {
  60         spr();
  61         gpr();
  62 }
  63
  64 defn fpr()
  65 {
  66         print("F0\t",  *F0, "\n");
  67         print("F1\t",  *F1, "\n");
  68         print("F2\t",  *F2, "\n");
  69         print("F3\t",  *F3, "\n");
  70         print("F4\t",  *F4, "\n");
  71         print("F5\t",  *F5, "\n");
  72         print("F6\t",  *F6, "\n");
  73         print("F7\t",  *F7, "\n");
  74         print("control\t", *FCW, "\n");
  75         print("status\t", *FSW, "\n");
  76         print("tag\t", *FTW, "\n");
  77         print("ip\t", *FIP, "\n");
  78         print("cs selector\t", *FCS, "\n");
  79         print("opcode\t", *FOP, "\n");
  80         print("data operand\t", *FDP, "\n");
  81         print("operand selector\t", *FDS, "\n");
  82 }
  83
  84 defn pstop(pid)
  85 {
  86         local l;
  87         local pc;
  88
  89         pc = (*PC)\i;
  90
  91         if notes && regexp("^sys: watchpoint ", notes[0]) then
  92                 pc--;
  93
  94         print(pid,": ", reason(*TRAP), "\t");
  95         print(fmt(pc, 'a'), "\t", pc, "\n");
  96
  97         if notes then {
  98                 if regexp("^sys: watchpoint ", notes[0]) then
  99                         wpprocess();
 100                 else if notes[0] != "sys: breakpoint" then {
 101                         print("Notes pending:\n");
 102                         l = notes;
 103                         while l do {
 104                                 print("\t", head l, "\n");
 105                                 l = tail l;
 106                         }
 107                 }
 108         }
 109 }
 110
 111 aggr Ureg
 112 {
 113         'X' 0 di;
 114         'X' 4 si;
 115         'X' 8 bp;
 116         'X' 12 nsp;
 117         'X' 16 bx;
 118         'X' 20 dx;
 119         'X' 24 cx;
 120         'X' 28 ax;
 121         'X' 32 gs;
 122         'X' 36 fs;
 123         'X' 40 es;
 124         'X' 44 ds;
 125         'X' 48 trap;
 126         'X' 52 ecode;
 127         'X' 56 pc;
 128         'X' 60 cs;
 129         'X' 64 flags;
 130         {
 131         'X' 68 usp;
 132         'X' 68 sp;
 133         };
 134         'X' 72 ss;
 135 };
 136
 137 defn
 138 Ureg(addr) {
 139         complex Ureg addr;
 140         print(" di      ", addr.di, "\n");
 141         print(" si      ", addr.si, "\n");
 142         print(" bp      ", addr.bp, "\n");
 143         print(" nsp     ", addr.nsp, "\n");
 144         print(" bx      ", addr.bx, "\n");
 145         print(" dx      ", addr.dx, "\n");
 146         print(" cx      ", addr.cx, "\n");
 147         print(" ax      ", addr.ax, "\n");
 148         print(" gs      ", addr.gs, "\n");
 149         print(" fs      ", addr.fs, "\n");
 150         print(" es      ", addr.es, "\n");
 151         print(" ds      ", addr.ds, "\n");
 152         print(" trap    ", addr.trap, "\n");
 153         print(" ecode   ", addr.ecode, "\n");
 154         print(" pc      ", addr.pc, "\n");
 155         print(" cs      ", addr.cs, "\n");
 156         print(" flags   ", addr.flags, "\n");
 157         print(" sp      ", addr.sp, "\n");
 158         print(" ss      ", addr.ss, "\n");
 159 };
 160 sizeofUreg = 76;
 161
 162 print("/sys/lib/acid/386");