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//Original:/proj/frio/dv/testcases/core/c_except_sys_sstep/c_except_sys_sstep.dsp
// Spec Reference: Single Step Supervisor Exception Test (NO REGTRACE!)
# mach: bfin
# sim: --environment operating
#include "test.h"
.include "testutils.inc"
start
include(gen_int.inc)
include(selfcheck.inc)
include(std.inc)
#ifndef STACKSIZE
#define STACKSIZE 0x10
#endif
#ifndef EVT
#define EVT 0xFFE02000
#endif
#ifndef EVT15
#define EVT15 0xFFE0203C
#endif
#ifndef EVT_OVERRIDE
#define EVT_OVERRIDE 0xFFE02100
#endif
//
////MY_GEN_INT_INIT(0xF0000000) // set location for interrupt table
//
// Reset/Bootstrap Code
// (Here we should set the processor operating modes, initialize registers,
// etc.)
//
BOOT:
INIT_R_REGS(0); // initialize general purpose regs
INIT_P_REGS(0); // initialize the pointers
INIT_I_REGS(0); // initialize the dsp address regs
INIT_M_REGS(0);
INIT_L_REGS(0);
INIT_B_REGS(0);
// CHECK_INIT(p2, 0x2000);
include(symtable.inc)
CHECK_INIT_DEF(p2);
LD32_LABEL(sp, KSTACK); // setup the stack pointer
FP = SP; // and frame pointer
LD32(p0, EVT); // Setup Event Vectors and Handlers
LD32_LABEL(r0, EHANDLE); // Emulation Handler (Int0)
[ P0 ++ ] = R0;
LD32_LABEL(r0, RHANDLE); // Reset Handler (Int1)
[ P0 ++ ] = R0;
LD32_LABEL(r0, NHANDLE); // NMI Handler (Int2)
[ P0 ++ ] = R0;
LD32_LABEL(r0, XHANDLE); // Exception Handler (Int3)
[ P0 ++ ] = R0;
[ P0 ++ ] = R0; // IVT4 not used
LD32_LABEL(r0, HWHANDLE); // HW Error Handler (Int5)
[ P0 ++ ] = R0;
LD32_LABEL(r0, THANDLE); // Timer Handler (Int6)
[ P0 ++ ] = R0;
LD32_LABEL(r0, I7HANDLE); // IVG7 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I8HANDLE); // IVG8 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I9HANDLE); // IVG9 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I10HANDLE);// IVG10 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I11HANDLE);// IVG11 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I12HANDLE);// IVG12 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I13HANDLE);// IVG13 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I14HANDLE);// IVG14 Handler
[ P0 ++ ] = R0;
LD32_LABEL(r0, I15HANDLE);// IVG15 Handler
[ P0 ++ ] = R0;
LD32(p0, EVT_OVERRIDE);
R0 = 0;
[ P0 ++ ] = R0;
R0 = -1; // Change this to mask interrupts (*)
[ P0 ] = R0; // IMASK
DUMMY:
R0 = 0 (Z);
LT0 = r0; // set loop counters to something deterministic
LB0 = r0;
LC0 = r0;
LT1 = r0;
LB1 = r0;
LC1 = r0;
ASTAT = r0; // reset other internal regs
R0 = 1;
SYSCFG = r0; // Enable Supervisor Single Step
R4 = 0;
LD32_LABEL(r0, START);
RETI = r0; // We need to load the return address
RTI;
START:
LD32_LABEL(sp, USTACK); // setup the stack pointer
FP = SP; // set frame pointer
JUMP BEGIN;
//*********************************************************************
BEGIN:
R0 = 0;
R1 = 1;
R2 = 2;
R3 = 3;
R5 = 5;
R6 = 6;
R7 = 7;
EXCPT 3; // turn off single step via handler
CHECKREG(r4, 0x0b); // 11 instrs are executed before single step = disabled
CHECKREG(r0, 0x00);
CHECKREG(r1, 0x03);
CHECKREG(r2, 0x10);
CHECKREG(r3, 0x04);
CHECKREG(r5, 0x09);
CHECKREG(r6, 0x06);
CHECKREG(r7, 0x07);
// PUT YOUR TEST HERE!
END:
dbg_pass; // End the test
//*********************************************************************
//
// Handlers for Events
//
EHANDLE: // Emulation Handler 0
RTE;
RHANDLE: // Reset Handler 1
RTI;
NHANDLE: // NMI Handler 2
RTN;
XHANDLE: // Exception Handler 3
[ -- SP ] = ASTAT; // save ASTAT
R1 = SEQSTAT;
R1 <<= 26;
R1 >>= 26; // only want EXCAUSE
R2 = 0x10; // EXCAUSE 0x10 means Single Step (exception)
CC = r1 == r2;
IF CC JUMP SSCOUNT; // Go to Single Step Handler
SYSCFG = r0; // otherwise must be an EXCPT, so turn off singlestep
R3 += 1;
JUMP.S EXIT;
SSCOUNT:
R4 += 1; // R4 counts single step events
EXIT:
ASTAT = [sp++];
R5 += 1;
RTX;
HWHANDLE: // HW Error Handler 5
RTI;
THANDLE: // Timer Handler 6
RTI;
I7HANDLE: // IVG 7 Handler
RTI;
I8HANDLE: // IVG 8 Handler
RTI;
I9HANDLE: // IVG 9 Handler
RTI;
I10HANDLE: // IVG 10 Handler
RTI;
I11HANDLE: // IVG 11 Handler
RTI;
I12HANDLE: // IVG 12 Handler
RTI;
I13HANDLE: // IVG 13 Handler
RTI;
I14HANDLE: // IVG 14 Handler
RTI;
I15HANDLE: // IVG 15 Handler
RTI;
NOP;NOP;NOP;NOP;NOP;NOP;NOP; // needed for icache bug
//
// Data Segment
//
.data
DATA:
.space (0x10);
// Stack Segments (Both Kernel and User)
.space (STACKSIZE);
KSTACK:
.space (STACKSIZE);
USTACK:
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