path: root/sim/tic80/ChangeLog

Tue Feb 17 14:35:05 1998  Michael Meissner  <meissner@cygnus.com>

	* misc.c (tic80_trace_cond_br): Take size/code arguments, and
	decode bcond conditions and bbo/bbz comparison bits.

	* cpu.h (tic80_trace_cond_br): Update prototype.
	(TRACE_COND_PR): Take size/code additional arguments.

	* insns: (bbo/bbz/bcnd): Update call to TRACE_COND_PR.

Tue Feb 17 12:50:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_store_register, sim_fetch_register): Pass in
 	length parameter.  Return -1.

Fri Feb 13 17:11:22 1998  Michael Meissner  <meissner@cygnus.com>

	* insns ({get,set}_fp_reg): Tic80 floating point is little endian,
	not big endian.

	* misc.c (tic80_trace_fpu*): Pass address of sim_fpu structure,
	not the structure itself.  Use %g consistantly to print floating
	point.

	* cpu.h: (tic80_trace_fpu*): Update prototypes.

Tue Feb  3 16:25:47 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h (IMEM32, IMEM32_IMMED): Rename IMEM and IMEM_IMMED so that
 	in sync with recent igen change.

Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Fri Jan 30 11:47:50 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* cpu.h (CPU_CIA): Delete macro, replace with...
 	(CIA_SET, CIA_GET): Define.

Wed Jan 28 18:44:33 1998  Michael Meissner  <meissner@cygnus.com>

	* misc.c (tic80_trace_cmp_internal): New function to return
	compare bits as a string.
	(tic80_trace_{,fpu2}cmp): New functions for tracing cmp and fcmp.

	* cpu.h (tic80_trace_{,fpu2}cmp): Add declaration.
	(TRACE_{,FPU2}CMP): New macros for tracing compares.

	* insns (do_{,f}cmp): Use compare specific tracing functions to
	print out the flag bits.

Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Mon Nov 24 14:57:58 1997  Doug Evans  <devans@seba.cygnus.com>

	* cpu.h (TRACE_COND_BR): Use TRACE_BRANCH_P, not TRACE_ALU_P.

Sat Nov 22 21:42:09 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interp.c (engine_step): Replace SIGTRAP with SIM_SIGTRAP.
	(engine_run_until_stop): Replace SIGINT with SIM_SIGINT.

	* sim-main.h: Include sim-signal.h.
	(SIGTRAP): Delete definition.

	* interp.c, sim-calls.c: Do not include signal.h.

	* insns (illegal): SIGILL -> SIM_SIGILL.
 	(fp_unavailable): SIGFPE -> SIM_SIGFPE.
	(do_trap): SIGTRAP -> SIM_SIGTRAP.
	
Tue Nov 18 15:33:48 1997  Doug Evans  <devans@canuck.cygnus.com>

	* sim-main.h (CIA_ADDR): Define.

	* Makefile.in (SIM_OBJS): Use $(SIM_NEW_COMMON_OBJS).

Fri Oct 17 17:26:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h (ALU32_END): Use ALU32_RESULT.

Mon Sep 29 12:49:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (get_fp_reg, set_fp_reg): Update to use changed sim_fpu
 	interface.
	(do_fadd, do_fcmp, do_fdiv, do_fmpy, do_frnd, do_fsub): Ditto.

	* misc.c (tic80_trace_fpu3, tic80_trace_fpu2, tic80_trace_fpu1,
 	tic80_trace_fpu2i) Update to use changed sim_fpu interface.
	
Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure.in (SIM_AC_OPTIONS_BITSIZE): Define.
	* configure: Regenerated to track ../common/aclocal.m4 changes.

Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Tue Sep 23 10:19:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* Makefile.in (SIM_WARNINGS, SIM_ALIGNMENT, SIM_ENDIAN,
 	SIM_HOSTENDIAN, SIM_INLINE, SIM_RESERVED_BITS): Delete, moved to
 	common.
	(SIM_EXTRA_CFLAGS): Update.
	
Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Tue Sep 16 23:10:03 1997  Felix Lee  <flee@cygnus.com>

	* sim-main.h (kill): macro was missing args.
	(SIGTRAP): define for MSVC.

Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Mon Sep  8 20:10:43 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* cpu.h (CPU_CIA): Define.

	* sim-main.h (struct sim_state): Delete halt_ok, path_to_halt,
 	restart_ok, path_to_restart members.
	(struct sim_state): Delete reason, siggnal members.
	
Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Thu Sep  4 17:45:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_open): Add memory before parsing arguments.
	(sim_read): Delete, replace with sim-hrw.
	(sim_write): Delete, replace with sim-hrw.

Thu Sep  4 10:48:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_open): Use sim_do_command to add memory, only
 	add memory if none already present.
	(sim_open): Move init of registers from here.
	(sim_create_inferior): To here. Init modules.

	* Makefile.in (SIM_OBJS): Add sim-memopt.o module.

	* sim-calls.c (sim_open): Add zero modulo arg to sim_core_attach.

Mon Sep  1 11:06:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_open): Use sim_state_alloc
	(simulation): Delete.

Sat Aug 30 09:40:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (do_trap): Unsigned `i' for unsigned iterator.
	(do_trap): Ditto for comparison with getpid.

Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Wed Aug 27 13:41:24 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (do_st): Use U8_4 instead of V4_L8.

	* sim-calls.c (sim_open): Add call to sim_analyze_program, update
 	call to sim_config.

	* sim-calls.c (sim_kill): Delete.
	(sim_create_inferior): Add ABFD argument.  Initialize PC from ABFD
 	and not SD.
	(sim_load): Delete, use sim-hload.c.

	* Makefile.in (SIM_OBJS): Add sim-hload.o module.

Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Mon Aug 25 16:33:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_open): Add ABFD argument.
	(sim_open): Move sim_config call to just after argument
 	parsing. Check return status.

Fri Aug  8 21:52:27 1997  Mark Alexander  <marka@cygnus.com>

	* sim-calls.c (sim_store_register): Allow accumulators
	other than A0 to be modified.  Correct error message.

Thu May 29 14:02:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* misc.c (tic80_trace_fpu3, tic80_trace_fpu2, tic80_trace_fpu1,
 	tic80_trace_fpu2i): Pass in function prefix.
	(tic80_trace_ldst): Rewrite so it calls print_one_insn directly.
	
	* Makefile.in (SIM_OBJS): Include sim-watch.o module.

	* sim-main.h (WITH_WATCHPOINTS): Enable watchpoints.

	* ic (bitnum): Compute bitnum from BITNUM.
	* insn (bbo, bbz): Use.
	
	* insn: Convert long immediate instructions to igen long immediate
 	form.
	* insn: Add disasembler information.
	
Thu May 29 12:09:13 1997  Andrew Cagney  <cagney@b2.cygnus.com>

	* alu.h (IMEM_IMMED): New macro, fetch 32bit immediate operand N.

	* insns (subu i): Immediate is signed not unsigned.

Tue May 27 13:22:13 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_read): Pass NULL cpu to sim_core_read_buffer.
	(sim_write): Ditto for write.

Tue May 20 09:33:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_load): Set STATE_LOADED_P.

	* sim-main.h: Include <unistd.h>.

	* sim-calls.c (sim_set_callback): Delete.
	(sim_open): Add/install callback argument.
	(sim_size): Delete.
	
Mon May 19 18:59:33 1997  Mike Meissner  <meissner@cygnus.com>

	* configure.in: Check for getpid, kill functions.
	* config{.in,ure}: Regenerate.

	* insns (do_trap): Add support for kill, getpid system calls.

	* sim-main.h (errno.h): Include.
	(getpid,kill): Define as NOPs if the host doesn't have them.

Mon May 19 14:58:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_open): Set the simulator base magic number.
	(sim_load): Delete prototype of sim_load_file.
	(sim_open): Define sd to be &simulation.

Fri May 16 14:35:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (illegal, fp_unavailable): Halt instead of abort the
 	simulator.

	* insns: Replace calls to engine_error with sim_engine_abort.
  	Ditto for engine_halt V sim_engine_halt.
	
Tue May 13 15:24:12 1997  Andrew Cagney  <cagney@b2.cygnus.com>

	* interp.c (engine_run_until_stop): Delete. Moved to common.
	(engine_step): Ditto.
	(engine_step): Ditto.
	(engine_halt): Ditto.
	(engine_restart): Ditto.
	(engine_halt): Ditto.
	(engine_error): Ditto.

	* sim-calls.c (sim_stop): Delete. Moved to common.
	(sim_stop_reason): Ditto.
	(sim_resume): Ditto.

	* Makefile.in (SIM_OBJS): Link in generic sim-engine, sim-run,
 	sim-resume, sim-reason, sim-stop modules.

Fri May 16 11:57:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* ic (compute): Drop check for REG == 0, now always forced to
 	zero.

	* cpu.h (GPR_SET): New macro update the gpr.
	* insns (do_add): Use GPR_SET to update the GPR register.

	* sim-calls.c (sim_fetch_register): Pretend that r0 is zero.

	* Makefile.in (tmp-igen): Specify zero-r0 so that every
 	instruction clears r0.

	* interp.c (engine_run_until_stop): Igen now generates code to
 	clear r0.
	(engine_step): Ditto.

Thu May 15 11:45:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (do_shift): When rot==0 and zero/sign merge treat it as
 	32.
	(set_fp_reg): For interger conversion, use sim-fpu fpu2i
 	functions.
	(do_fmpy): Perform iii and uuu using integer arithmetic.
	
	* Makefile.in (ENGINE_H): Assume everything depends on the fpu.

	* insns (get_fp_reg): Use sim_fpu_u32to to perform unsigned
 	conversion.
	(do_fcmp): Update to use new fp compare functions. Make reg nr arg
 	instead of reg.  Stops fp overflow.
	(get_fp_reg): Assume val is valid when reg == 0.
	(set_fp_reg): Fix double conversion.

	* misc.c (tic80_trace_fpu1): New function, trace simple fp op.
	
	* insns (do_frnd): Add tracing.

	* cpu.h (TRACE_FPU1): Ditto.

	* insns (do_trap): Printf formatting.

Wed May 14 18:05:50 1997  Mike Meissner  <meissner@cygnus.com>

	* misc.c (tic80_trace_fpu{3,2,2i}): Align columns with other
	insns.  Use %g to print floating point instead of %f in case the
	numbers are real large.

Tue May 13 18:00:10 1997  Mike Meissner  <meissner@cygnus.com>

	* insns (do_trap): For system calls that are defined, but not
	provided return EINVAL. Temporarily add traps 74-79 to just print
	the register state.

	* interp.c (engine_{run_until_stop,step}): Before executing
	instructions, make sure r0 == 0.

Tue May 13 16:39:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h (IMEM): Take full cia not just IP as argument.

	* interp.c (engine_run_until_stop): Delete handling of annuled
 	instructions.
	(engine_step): Ditto.

	* insn (do_branch): New function.
	(do_bbo, do_bbz, do_bcnd, do_bsr, do_jsr): Use do_branch to handle
 	annuled branches.

Mon May 12 17:15:52 1997  Mike Meissner  <meissner@cygnus.com>

	* insns (do_{ld,st}): Fix tracing for ld/st.

Mon May 12 11:12:24 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_stop_reason): Restore keep_running after a
 	CNTRL-C, don't re-clear it.

	* interp.c (engine_error): stop rather than signal with SIGABRT
 	when an error.

	* insns (do_ld): For 64bit loads, always store LSW in rDest, MSW in
 	rDest + 1. Also done by Michael Meissner  <meissner@cygnus.com>
	(do_st): Converse for store.

	* misc.c (tic80_trace_fpu2i): Correct printf format for int type.

Sun May 11 11:02:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_stop_reason): Return a SIGINT if keep_running
 	was cleared.

	* interp.c (engine_step): New function.  Single step the simulator
 	taking care of cntrl-c during a step.

	* sim-calls.c (sim_resume): Differentiate between stepping and
 	running so that a cntrl-c during a step is reported.

Sun May 11 10:54:31 1997  Mark Alexander    <marka@cygnus.com>

	* sim-calls.c (sim_fetch_register): Use correct reg base.
	(sim_store_register): Ditto.

Sun May 11 10:25:14 1997  Michael Meissner  <meissner@cygnus.com>

	* cpu.h (tic80_trace_shift): Add declaration.
	(TRACE_SHIFT): New macro to trace shift instructions.

	* misc.c (tic80_trace_alu2): Align spacing.
	(tic80_trace_shift): New function to trace shifts.

	* insns (lmo): Add missing 0b prefix to bits.
	(do_shift): Use ~ (unsigned32)0, instead of -1.  Use TRACE_SHIFT
	instead of TRACE_ALU2.
	(sl r): Use EndMask as is, instead of using Source+1 register.
	(subu): Operands are unsigned, not signed.
	(do_{ld,st}): Fix endian problems with ld.d/st.d.

Sat May 10 12:35:47 1997  Michael Meissner  <meissner@cygnus.com>

	* insns (and{.tt,.tf,.ft,.ff}): Immediate values are unsigned, not
	signed.

Fri May  9 15:47:36 1997  Mike Meissner  <meissner@cygnus.com>

	* insns (cmp_vals,do_cmp): Produce the correct bits as specified
	by the architecture.
	(xor): Fix xor immediate patterns to use the correct bits.

Fri May  9 09:55:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h (long_immediate): Adjust the CIA delay-pointer as well as
 	the NIA when a 64bit insn.

Thu May  8 11:57:47 1997  Michael Meissner  <meissner@cygnus.com>

	* insns (jsr,bsr): For non-allulled calls, set r31 so that the
	return address does not reexecute the instruction in the delay
	slot.
	(bbo,bbz): Complement bit number to reverse the one's complement
	that the assembler is required to do.

	* misc.c (tic80_trace_*): Change format slightly to accomidate
	real large decimal values.

Thu May  8 14:07:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c (sim_do_command): Implement.
	(sim_store_register): Fix typo T2H v H2T.

Wed May  7 11:48:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* cpu.h (TRACE_FPU2, TRACE_FPU3, TRACE_FPU2I): Add.
	* insn: Clean up fpu tracing.

	* sim-calls.c (sim_create_inferior): Start out with interrupts
 	enabled.

	* cpu.h (TRACE_SINK3), misc.c (tic80_trace_sink3): Three argument
 	sink

	* insns (rdcr, swcr, wrcr, brcr, rmo, lmo): Implement.

	* insns (do_*): Remove MY_INDEX/indx argument from support functions,
 	igen now handles this.
	
	* cpu.h (CR): New macro - access TIc80 control registers.
	
	* misc.c: New file.
	(tic80_cr2index): New function, map control register opcode index
 	into the internal CR enum.

	* interp.c
 	(tic80_trace_{alu{2,3},nop,sink{1,2},{,u}cond_br,ldst}): Move from
 	here
	* misc.c: to here.
	
	* Makefile.in (SIM_OBJS): Add misc.o.

Tue May  6 15:22:58 1997  Mike Meissner  <meissner@cygnus.com>

	* cpu.h ({,v}{S,D}P_FPR): Delete unused macros that won't work on
	big endian hosts.
	(tic80_trace_{alu{2,3},nop,sink{1,2},{,u}cond_br,ldst}): Declare
	new functions.
	(TRACE_{ALU{2,3},NOP,SINK{1,2},{,U}COND_BR,LD,ST}): New macros to
	trace various instruction types.

	* insns: Modify all instructions to support semantic tracing.

	* interp.c (toplevel): Include itable.h.
	(tic80_trace_{alu{2,3},nop,sink{1,2},{,u}cond_br,ldst}): New
	functions to provide semantic level tracing information.

Mon May  5 11:50:43 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h: Update usage of core object to reflect recent changes in
 	../common/sim-*core.
	* sim-calls.c (sim_open): Ditto.

Mon May  5 14:10:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insn (cmnd): No-op cache flushes.
	
	* insns (do_trap): Allow writes to STDERR.

	* Makefile.in (SIM_OBJS): Link in sim-fpu.o.
	(SIM_EXTRA_LIBS): Link in the math library.

	* alu.h: Add support for floating point unit using sim-alu.
	
	* insns (fadd, fsub, fmpy, fdiv, fcmp, frnd*): Implement.

Fri May  2 14:57:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-calls.c: Include sim-utils.h and sim-options.h.

	* sim-main.h (sim_state): Drop sim_events and sim_core members,
 	moved to simulator base type.

	* alu.h (IMEM, MEM, STORE): Update track changes in common
 	directory.

	* insns: Drop cia argument from functions, igen now handles this.

	* interp.c (engine_init): Include string.h/strings.h to define
 	memset et.al.

	* sim-main.h (sim_cia): Delcare, tracking common dir changes.

	* cpu.h (sim_cpu): Update instruction_address with sim_cia.

Wed Apr 30 11:26:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* sim-main.h (signal.h): Include so that SIG* available to all
 	callers of sig_halt.

	* insns (do_shift): New function, implement shift operations.
	(do_trap): Add handler for trap 73 - SIGTRAP.
	
Tue Apr 29 10:58:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* alu.h (MEM, STORE): Force addresses to be correctly aligned.

	* insns (do_jsr): Fix.
	(do_st, do_ld): Handle 64bit transfers.
	(do_trap): Match libgloss.
	(rdcr): Implement nop - Dest == r0 - variant.

	* sim-calls.c (sim_create_inferior): Initialize SP.

	* Makefile.in (ENGINE_H): Everything now depends on sim-options.h.
	(support.o): Depends on ENGINE_H.

	* cpu.h: Four accumulators.

	* Makefile.in (tmp-igen): Include line number information in
 	generated files.

	* insns (dld, dst): Fill in.

Mon Apr 28 13:02:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (vld): Fix instruction format wrong.

Thu Apr 24 16:43:09 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* dc: Add additional rules so that minor opcode files are
 	detected.
	* insns: Enable more instructions.
	
	* sim-calls.c (sim_fetch_register,sim_store_register, sim_write):
 	Implement.

Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* Makefile.in (SIM_OBJS): Add sim-module.o, sim-profile.o.
	* sim-calls.c (sim_open): Call sim_module_uninstall if argument
	parsing fails.  Call sim_post_argv_init.
	(sim_close): Call sim_module_uninstall.

Wed Apr 23 20:05:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* insns (and, bbo, bcnd, bsr, dcache, jsr, or, xor, nor): Enable.
  	* ic: Add fields for enabled instructions.