Mon Dec 16 13:39:03 1996 Martin M. Hunt * interp.c (xfer_mem): Change unified memory to 0x0. Thu Nov 28 20:42:56 1996 Michael Meissner * simops.c (OP_3E01): Fix tracing information. (OP_300{0,1}): Do not propigate sign. Mon Nov 25 19:47:40 1996 Doug Evans * config.in (WORDS_BIGENDIAN): Add. * configure: Regenerated. * d10v_sim.h: #include "config.h" Sat Nov 23 09:34:50 1996 Michael Meissner * gencode.c (write_opcodes): Eliminate warnings when generated table.c is compiled. Wed Nov 20 19:41:40 1996 Michael Meissner * interp.c (sim_open): Cast result of calloc, and make sure NULL was not returned. (dmem_addr): If address is illegal or in I/O space, signal a bus error. (pc_addr): Signal bus error, not illegal instruction for bogus pc. Wed Nov 20 01:23:03 1996 Doug Evans * Makefile.in: Delete all stuff moved to ../common/Make-common.in. (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define. * configure.in: Simplify using macros in ../common/aclocal.m4. Call AC_CHECK_HEADERS(unistd.h). * configure: Regenerated. * config.in: New file. * interp.c: #include "callback.h". * simops.c: #include "config.h". #include if present. Fri Nov 8 16:19:55 1996 Martin M. Hunt * d10v-sim.h (simops): Add flag is_long. (State): Add pc_changed. Instructions which update the PC should use the JMP macro which sets this. (JMP): New macro. Sets the PC and the pc_changed flag. * gencode.c (write_opcodes): Add is_long field. * interp.c (lookup_hash): If we blindly apply a short opcode's mask to a long opcode we could get a false match. Check the opcode size. (hash): Add a size field to the hash table. (sim_open): Initialize size field in hash table. (sim_resume): Change to logic for setting the PC. Used to increment the PC if it had not been changed. This didn't allow single-instruction loops. Now checks the flag State.pc_changed. Also now stops when ^C is received. (dmem_addr): Fix translation of data segments to unified memory. (sim_ctrl_c): New function. When ^C is received, set stop_simulator flag. * simops.c: Changed all branch and jump instructions to use new JMP macro. (OP_20000000): Corrected trace information to show this is a ldi.l, not a ldi.s instruction. Thu Oct 31 19:13:55 1996 Martin M. Hunt * interp.c (sim_fetch_register, sim_store_register): Fix bug where updating the accumulators was overwriting other parts of the global State variable. Wed Oct 30 17:35:14 1996 Michael Meissner * interp.c (bfd.h) Don't include it here any more. (text{,_start,_end}): Move here from simops.c and make extern. (decode_pc): New function to return the PC as an address that the debugger can use. (dmem_addr): Print decoded PC in error message. (pc_addr): Ditto. * simops.c (bfd.h) Don't include it here any more. (text{,_start,_end}): Move to simops.c. (trace_input_func): Move decoding of PC, and looking up .text start to decode_pc. * d10v_sim.h (bfd.h): Include it here. (text{,_start,_end}): Add external declarations. (exec_bfd): Ditto. (decode_pc): Ditto. Tue Oct 29 12:13:52 1996 Martin M. Hunt * interp.c (sim_size): Now allocates unified memory for imap segments 0,1,2, and 127. Initializes imap0 and imap1 to 0x1000. Initializes dmap to 0. (sim_write): Just call xfer_mem(). (sim_read): Just call xfer_mem(). (xfer_mem): New function. Does appropriate memory mapping and copies bytes. (dmem_addr): New function. Reads dmap register and translates data addresses to local addresses. (pc_addr): New function. Reads imap register and computes local address corresponding to contents of the PC. (sim_resume): Change to use pc_addr(). (sim_create_inferior): Change reinitialization code. Also reinitializes imap[01] and dmap. (sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap. (sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap. * simops.c (MEMPTR): Redefine to use dmem_addr(). (OP_5F00): Replace references to STate.imem with dmem_addr(). * d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128]. (RB,SW,RW,SLW,RLW): Redefine to use dmem_addr(). (IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define. Tue Oct 22 15:22:33 1996 Michael Meissner * d10v_sim.h (_ins_type): Reorganize, so that we can provide better statistics, like not counting NOPS as parallel instructions, and printing total cycles. (ins_type_counters): Make unsigned long. (left_nops,right_nops): Fold into ins_type_counters. * simops.c (trace_input_func): Print new instruction types. Handle OP_R2R3 as input types. (OP_{38000000,7000}): Correctly sign extend bytes. (OP_5E00): Don't count NOPs as parallel instructions. (OP_460B): Remove unused variable. (OP_5F00): Ditto. * interp.c (ins_type_counters): Make unsigned long. (left_nops,right_nops): Delete. (most functions): Add prototypes. (INLINE): If GCC and optimize define as __inline__. ({,lookup_}hash,get_operands): Declare as INLINE. (do_parallel): Count conditional operations. (add_commas): New function, to add commas every 3 digits. (sim_size): Call add_commas to print numbers. (sim_{open,resume}): Delete unused variables. (sim_info): Provide better statistics. (sim_read): Add int return type. Mon Oct 21 16:16:26 1996 Martin M. Hunt * interp.c (sim_resume): Change the way single-stepping and exceptions are handled so single-stepping works again. Thu Oct 17 12:24:16 1996 Michael Meissner * endian.c: Optimize simulated loads/stores on x86, AIX, and big endian hosts. * configure.in (--enable-sim-bswap): New switch to enable using the BSWAP instruction on x86's. * configure: Regenerate. * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap support. Wed Oct 16 13:50:06 1996 Michael Meissner * endian.c: New file. Move endian functions here from interp.c. Optimize code, and make it work as either inline functions or as a separate file. * interp.c: Move endian functions from here to endian.c. * Makefile.in (INCLUDE): Add endian.c. (run,libsim.a): Add dependency on endian.o. (endian.o): Add dependency. * d10v_sim.h (read/write support): Always go through the machine independent endian functions. If compiling with GCC and optimizing, include endian.c so the endian functions are inlined. * simops.c (OP_5F00): Correct tracing of accumulators. Tue Oct 15 10:57:50 1996 Michael Meissner * simops.c (OP_5F00): Add support for getpid, kill system calls. * interp.c (do_{2_short,parallel}): If an exception is raised, don't execute the second instruction. Sat Oct 12 22:17:43 1996 Michael Meissner * simops.c (OP_{31000000,6601,6201,6200}): Store address in a temporary in case the register is overriden when loading. (OP_6200): Output type is OP_DREG for tracing. Fri Oct 4 23:46:18 1996 Michael Meissner * d10v_sim.h (struct _state): Add mem_{min,max} fields. * interp.c (sim_size): Initialize mem_{min,max} fields. (sim_write): Update mem_{min,max} fields. (sim_resume): If PC is not in the minimum/maximum memory range, abort. (sim_create_inferior): Preserve mem_{min,max} fields. Fri Sep 27 13:11:58 1996 Mark Alexander * simops.c (OP_5F00): Add support for time() system call. Wed Sep 25 16:31:41 1996 Michael Meissner * simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being stored if tracing. (OP_5F00,trace_{in,out}put_func): Add finer grain tracing for system calls. Mon Sep 23 17:55:30 1996 Michael Meissner * simops.c (op_types): Add OP_{CONSTANT8,R2,R3}. (trace_input_func): Add support for OP_{CONSTANT8,R2,R3}. (OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3 to call/subroutine returns to trace the first two arguments and the return value. For small jumps, use CONSTANT8, not CONSTANT16. Fri Sep 20 15:36:45 1996 Martin M. Hunt * interp.c (sim_create_inferior): Reinitialize State every time sim_create_inferior() is called. Thu Sep 19 21:38:20 1996 Michael Meissner * simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right on comparisons. (OP_401): Fix tracing information. Thu Sep 19 10:30:22 1996 Michael Meissner * simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output. (trace_input_func): Use them. (trace_input_func): Make sure there is a trailing space after the instruction. (OP_6200): Fix tracing info. * Makefile.in (run): Add dependencies on libbfd.a and libiberity.a. Wed Sep 18 09:13:25 1996 Michael Meissner * d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line numbers and function names in debug trace. (DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and DEBUG_LINE_NUMBER. (SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction and exit system call trap being executed. * interp.c (sim_stop_reason): Set exit code correctly for stop instruction and exit system call trap. * configure.in (--enable-sim-cflags): Remove trace case. (--enable-sim-debug): New switch to set the debug values. * configure: Regenerate. * simops.c (trace_{input,output}_func): Rename from trace_{input,output}. (trace_{input,output}): Call trace_{input,output}_func if d10v_debug is non-zero. (SIZE_INSTRUCTION): Cut down to 8. (SIZE_OPERANDS): Cut down to 18. (SIZE_LOCATION): New value for size of line number, function name field. (init_text_p,text{,_start,_end}): New static variables for printing line number and function name. (exec_bfd): New external that run.c sets. (trace_input_func): Print line number and function name if available and if desired. (OP_4E09): Don't print out DBT message. (OP_5FE0): Set exception field to SIG_D10V_STOP. (OP_5F00): Set exception field to SIG_D10V_EXIT. Sat Sep 14 22:18:43 1996 Michael Meissner * interp.c (do_2_short): If the instruction encodes jump->ins, don't do the second instruction if the jump succeeds. Fri Sep 13 22:35:19 1996 Michael Meissner * simops.c (OP_5F00): Use unknown traps to print all GPRs, accumulators, PC, and F0/F1/C flags. Thu Sep 12 12:50:11 1996 Mark Alexander * simops.c (OP_5F00): Fix problems with system calls. Thu Sep 12 12:19:28 1996 Michael Meissner * simops.c (OP_5F00): Correct tracing information for trap. Wed Sep 11 18:55:50 1996 Michael Meissner * Makefile.in (CSEARCH): Correctly find opcodes directory. Mon Sep 9 13:27:26 1996 Michael Meissner * simops.c (trace_output): Properly align accumulator output. (OP_3{0,2,4}00): Properly parenthesize test expression. Add error if shift count is too high. (OP_4E{00,02,04,20,22,40,42}): Make tests agree with book. (OP_4E09): Make cpfg properly trace the input flags. (op_types): Add OP_FLAG_OUTPUT. (trace_{input,output}): Support OP_FLAG_OUTPUT. (OP_31000000): This ld2w varient is a 16-bit memory reference, not an 8-bit memory reference instruction for tracing purposes. (OP_201): Addi needs to set the carry. Fri Sep 6 17:56:17 1996 Martin M. Hunt * simops.c (OP_2600, OP_2601): Changed min and max comparisons to use signed register values. Wed Sep 4 11:35:17 1996 Michael Meissner * d10v_sim.h (DEBUG_*): Add bit flags for controlling debug output. (_ins_type): New enumeration to specify which container an instruction is in, and whether it is part of a parallel operation. (_state): Add ins_type field. ({,u}int{8,16,32,64}): Use limits.h to size the appropriate types. (ins_type_counters): Counters for the various instruction types. ({left,right}_nops): Counters for the number of nops in each container. (d10v_debug): New variable to indicate whether debugging is turned on. * simops.c: (all functions): Change all #ifdef DEBUG code so that the input and output values can be traced, along with the instruction type. Make the -t option enable tracing. (all functions): Change printf calls to use the printf_filtered function in the callback table. * interp.c (_leftright): New enumeration to say whether 2 short instructions are done left first or right first. (do_{long,2_short,parallel}): Indicate in the machine state which type of instruction this is. Count each of the types of instructions executed. (sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug flag is set. (sim_resume): Pass left/right indication to do_2_short. (all functions): Change printf calls to use the printf_filtered function in the callback table. (sim_trace): Turn on debug flag if DEBUG was defined, and call sim_resume. (sim_info): Print out statistics on instructions. (sim_{trace,create_inferior}): Eliminate extraneous output unless debugging. (sim_open): If args == -t and DEBUG was defined, set d10v_debug. Only initialize the hash table the first time sim_open is called. * Makefile.in: Make objects depend on d10v_sim.h. ({,SIM_}CFLAGS): Include configure dependent switches. Setting CFLAGS does not override host/target defines or SIM_CFLAGS. (CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode. (run): By default, the math library is not needed to be linked in. ({BFD,LIBIBERTY}_LIB): Define as variables so they can be overridden. (VPATH): Don't set to anything but @srcdir@ to work with non-GNU makes. ({run,callback}.o): Provide explicit paths to their appropriate source directories. (gencode{,.o},d10v-opc.o): Split compilation into creating object and linking. Instead of linking in libopcodes.a, just compile d10v-opc.o directly to handle canadian cross. (CSEARCH): Add opcodes directory. * configure.in (--enable-sim-cflags): New switch to allow user to set the defaults. (CC_FOR_BUILD): Deal with canadian crosses. * configure: Regenerate. Wed Sep 04 04:45:34 1996 Mark Alexander * simops.c: Include correct syscall.h for d10v, not host's. Fix #ifdef SYS_stat. Tue Sep 3 14:00:04 1996 Michael Meissner * simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef. Add trap 2 to be printf and trap 3 to be putchar. Wed Aug 28 21:42:34 1996 Mark Alexander * Makefile.in, d10v_sim.h, interp.c, simops.c: Add support for low-level system calls. Wed Aug 28 17:33:19 1996 Martin M. Hunt * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems. Mon Aug 26 18:30:28 1996 Martin M. Hunt * d10v_sim.h (SEXT32): Added. * interp.c: Commented out printfs. * simops.c: Fixed error in sb and st2w. Thu Aug 15 13:30:03 1996 Martin M. Hunt * Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining DSP instructions. Added modulo addressing. Sun Aug 11 12:57:15 1996 Martin M. Hunt * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot. Fri Aug 2 17:44:24 1996 Martin M. Hunt * d10v_sim.h, simops.c: Snapshot. Thu Aug 1 17:05:24 1996 Martin M. Hunt * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h, gencode.c, interp.c, simops.c: Created.