sim/testsuite/sim/bfin/c_progctrl_except_rtx.S

   1 //Original:/proj/frio/dv/testcases/core/c_progctrl_except_rtx/c_progctrl_except_rtx.dsp
   2 // Spec Reference: c_progctrl_except_rtx
   3 # mach: bfin
   4 # sim: --environment operating
   5
   6 #include "test.h"
   7 .include "testutils.inc"
   8 start
   9
  10 include(std.inc)
  11 include(selfcheck.inc)
  12 INIT_R_REGS(0);
  13 INIT_P_REGS(0);
  14 //CHECK_INIT(p5, 0xe0000000);
  15 include(symtable.inc)
  16 CHECK_INIT_DEF(p5);
  17 // load address of exception handler
  18
  19 P0 = 0x200C (Z);              // 0xFFE0200C EVT3 EXCEPTION
  20 P0.H = 0xFFE0;
  21 R0 = exception_handler (Z);   // wr address of exception handler to MMR EVT3
  22 R0.H = exception_handler;
  23 [ P0 ] = R0;
  24
  25 //  Jump to User mode and enable exceptions
  26
  27 R0 = MidUserCode (Z);
  28 R0.H = MidUserCode;
  29 RETI = R0;
  30 RTI;            // cause it to go to Midusercode, .dd cause exception
  31
  32 BeginUserCode:
  33 P1 = 1;
  34 P2 = 2;
  35 P3 = 3;
  36 P4 = 4;
  37
  38 CHECKREG(r0, 0x00000000);
  39 CHECKREG(r1, 0x00000001);
  40 CHECKREG(r2, 0x00000002);
  41 CHECKREG(r3, 0x00000003);
  42 CHECKREG(r5, 0x00000000);
  43 CHECKREG(r6, 0x00000000);
  44 CHECKREG(r7, 0x00000000);
  45 CHECKREG(p1, 0x00000001);
  46 CHECKREG(p2, 0x00000002);
  47 CHECKREG(p3, 0x00000003);
  48 CHECKREG(p4, 0x00000004);
  49
  50 dbg_pass;
  51 //jump 2;
  52 //jump -2;
  53 .dd 0xFFFFFFFF
  54 .dd 0xFFFFFFFF
  55 .dd 0xFFFFFFFF
  56 .dd 0xFFFFFFFF
  57 .dd 0xFFFFFFFF
  58 .dd 0xFFFFFFFF
  59 .dd 0xFFFFFFFF
  60 .dd 0xFFFFFFFF
  61
  62 //dbg_pass;
  63
  64 MidUserCode:
  65 .dd 0xFFFFFFFF
  66 R0 = 0;
  67 R1 = 1;
  68 R2 = 2;
  69 R3 = 3;
  70 CC = R0;
  71 IF !CC JUMP BeginUserCode;
  72
  73 .dd 0xFFFFFFFF
  74 .dd 0xFFFFFFFF
  75 .dd 0xFFFFFFFF
  76 .dd 0xFFFFFFFF
  77 .dd 0xFFFFFFFF
  78 .dd 0xFFFFFFFF
  79 .dd 0xFFFFFFFF
  80 .dd 0xFFFFFFFF
  81
  82
  83 exception_handler:
  84 R4 = RETX;   // error handler: RETX has the address of the same Illegal instr
  85 R1 += 1;
  86 R2 += 2;
  87 R3 += 3;
  88 R1 += 1;
  89 R4 += 4;     // we have to add 4 to point to next instr after return
  90 RETX = R4;
  91
  92 RTX;  // return from exception
  93
  94 .section MEM_DATA_ADDR_1,"aw"
  95 .dd 0xDEADBEEF
  96 .dd 0xBAD00BAD