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2016-11-24target-m68k: fix muluw/mulswLaurent Vivier1-1/+1
"The multiplier and multiplicand are both word operands, and the result is a long-word operand." So compute flags on a long-word result, not on a word result. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-11-24target-m68k: Fix cmpa operand sizeLaurent Vivier1-1/+1
"The size of the operation can be specified as word or long. Word length source operands are sign-extended to 32 bits for comparison." So comparison is always done using OS_LONG. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-11-24target-m68k: fix EXG instructionLaurent Vivier1-2/+2
opcodes of "EXG Ax,Ay" and "EXG Dx,Dy" have been swapped Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-11-01log: Add locking to large logging blocksRichard Henderson1-0/+2
Reuse the existing locking provided by stdio to keep in_asm, cpu, op, op_opt, op_ind, and out_asm as contiguous blocks. While it isn't possible to interleave e.g. in_asm or op_opt logs because of the TB lock protecting all code generation, it is possible to interleave cpu logs, or to interleave a cpu dump with an out_asm dump. For mingw32, we appear to have no viable solution for this. The locking functions are not properly exported from the system runtime library. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: immediate ops manage word and byte operandsLaurent Vivier1-22/+35
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: cmp manages word and bytes operandsLaurent Vivier1-6/+11
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add/sub manage word and byte operandsLaurent Vivier1-33/+40
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add addressing modes to negLaurent Vivier1-8/+12
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: introduce byte and word cc_opsLaurent Vivier1-58/+73
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: some bit ops cleanupLaurent Vivier1-19/+15
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: suba/adda can manage word operandLaurent Vivier1-2/+3
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: and can manage word and byte operandsLaurent Vivier1-6/+10
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: or can manage word and byte operandsLaurent Vivier1-6/+8
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: eor can manage word and byte operandsLaurent Vivier1-6/+7
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add addressing modes to notLaurent Vivier1-4/+10
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: Inline addx, subx, negxRichard Henderson1-18/+178
Signed-off-by: Richard Henderson <rth@twiddle.net> And add opcodes for 680x0 Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-28target-m68k: add dbccLaurent Vivier1-0/+25
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add addressing modes to sccLaurent Vivier1-20/+20
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add exg opsLaurent Vivier1-0/+30
Suggested-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add linklLaurent Vivier1-5/+21
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-28target-m68k: add bkpt instructionLaurent Vivier1-0/+6
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Optimize gen_flush_flagsRichard Henderson1-4/+52
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Optimize some comparisonsRichard Henderson1-6/+103
Signed-off-by: Richard Henderson <rth@twiddle.net> [laurent: fixed VC and VS: assign v1, not v2] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Use setcond for sccRichard Henderson1-9/+11
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Introduce DisasCompareRichard Henderson1-24/+61
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Reorg flags handlingRichard Henderson1-226/+181
Separate all ccr bits. Continue to batch updates via cc_op. Signed-off-by: Richard Henderson <rth@twiddle.net> Fix gen_logic_cc() to really extend the size of the result. Fix gen_get_ccr(): update cc_op as it is used by the helper. Factorize flags computing and src/ccr cleanup Signed-off-by: Laurent Vivier <laurent@vivier.eu> target-m68k: sr/ccr cleanup Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Some fixes to SR and flags managementRichard Henderson1-1/+1
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Print flags properlyRichard Henderson1-7/+7
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: update CPU flags managementLaurent Vivier1-38/+83
Copied from target-i386 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: don't update cc_dest in helpersLaurent Vivier1-2/+2
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: update move to/from ccr/srLaurent Vivier1-31/+22
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: remove m68k_cpu_exec_enter() and m68k_cpu_exec_exit()Laurent Vivier1-1/+5
Update cc_op directly from tcg_gen_insn_start() and restore_state_to_opc() Copied from target-i386 Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Replace helper_xflag_lt with setcondRichard Henderson1-7/+7
Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: allow to update flags with operation on words and bytesLaurent Vivier1-43/+39
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: REG() macro cleanupLaurent Vivier1-3/+4
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: define operand sizesLaurent Vivier1-32/+15
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: introduce read_imXX() functionsLaurent Vivier1-50/+41
Read a 8, 16 or 32bit immediat constant. An immediate constant is stored in the instruction opcode and can be in one or two extension words. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: manage scaled indexLaurent Vivier1-0/+5
Scaled index is not supported by 68000, 68008, and 68010. EA = (bd + PC) + Xn.SIZE*SCALE + od Ignore it: M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL 2.4 BRIEF EXTENSION WORD FORMAT COMPATIBILITY "If the MC68000 were to execute an instruction that encoded a scaling factor, the scaling factor would be ignored and would not access the desired memory address. The earlier microprocessors do not recognize the brief extension word formats implemented by newer processors. Although they can detect illegal instructions, they do not decode invalid encodings of the brief extension word formats as exceptions." Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: define m680x0 CPUs and featuresLaurent Vivier1-44/+76
This patch defines height new features: - M68K_FEATURE_SCALED_INDEX, scaled address index register - M68K_FEATURE_LONG_MULDIV, 32bit multiply/divide - M68K_FEATURE_QUAD_MULDIV, 64bit multiply/divide - M68K_FEATURE_BCCL, long conditional branches - M68K_FEATURE_BITFIELD, bit field instructions - M68K_FEATURE_FPU, FPU instructions - M68K_FEATURE_CAS, cas instruction - M68K_FEATURE_BKPT, bkpt instruction Original patch from Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2016-10-25target-m68k: Build the opcode table only once to avoid multithreading issuesJohn Paul Adrian Glaubitz1-0/+5
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-25target-m68k: fix DEBUG_DISPATCHLaurent Vivier1-1/+1
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-06-20exec: [tcg] Track which vCPU is performing translation and executionLluís Vilanova1-0/+1
Information is tracked inside the TCGContext structure, and later used by tracing events with the 'tcg' and 'vcpu' properties. The 'cpu' field is used to check tracing of translation-time events ("*_trans"). The 'tcg_env' field is used to pass it to execution-time events ("*_exec"). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-id: 146549350162.18437.3033661139638458143.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-05target-*: dfilter support for in_asmRichard Henderson1-1/+2
The arm target was handled by 06486077, but other targets were ignored. This handles all the rest which actually support disassembly (that is, skipping moxie and tilegx). Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-19cpu: move exec-all.h inclusion out of cpu.hPaolo Bonzini1-0/+1
exec-all.h contains TCG-specific definitions. It is not needed outside TCG-specific files such as translate.c, exec.c or *helper.c. One generic function had snuck into include/exec/exec-all.h; move it to include/qom/cpu.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-12tcg: Allow goto_tb to any target PC in user modeSergey Fedorov1-6/+12
In user mode, there's only a static address translation, TBs are always invalidated properly and direct jumps are reset when mapping change. Thus the destination address is always valid for direct jumps and there's no need to restrict it to the pages the TB resides in. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Blue Swirl <blauwirbel@gmail.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-12tcg: Clean up direct block chaining safety checksSergey Fedorov1-1/+1
We don't take care of direct jumps when address mapping changes. Thus we must be sure to generate direct jumps so that they always keep valid even if address mapping changes. Luckily, we can only allow to execute a TB if it was generated from the pages which match with current mapping. Document tcg_gen_goto_tb() declaration and note the reason for destination PC limitations. Some targets with variable length instructions allow TB to straddle a page boundary. However, we make sure that both of TB pages match the current address mapping when looking up TBs. So it is safe to do direct jumps into the both pages. Correct the checks for some of those targets. Given that, we can safely patch a TB which spans two pages. Remove the unnecessary check in cpu_exec() and allow such TBs to be patched. Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-03-01tcg: Add type for vCPU pointersLluís Vilanova1-1/+1
Adds the 'TCGv_env' type for pointers to 'CPUArchState' objects. The tracing infrastructure later needs to differentiate between regular pointers and pointers to vCPUs. Also changes all targets to use the new 'TCGv_env' type instead of the generic 'TCGv_ptr'. As of now, the change is merely cosmetic ('TCGv_env' translates into 'TCGv_ptr'), but that could change in the future to enforce the difference. Note that a 'TCGv_env' type (for 'CPUState') is not added, since all helpers currently receive the architecture-specific pointer ('CPUArchState'). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Acked-by: Richard Henderson <rth@twiddle.net> Message-id: 145641859552.30295.7821536833590725201.stgit@localhost Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-09tcg: Change tcg_global_mem_new_* to take a TCGv_ptrRichard Henderson1-13/+17
Thus, use cpu_env as the parameter, not TCG_AREG0 directly. Update all uses in the translators. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-02-03log: do not unnecessarily include qom/cpu.hPaolo Bonzini1-0/+1
Split the bits that require it to exec/log.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-id: 1452174932-28657-8-git-send-email-den@openvz.org Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-01-29m68k: Clean up includesPeter Maydell1-0/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-31-git-send-email-peter.maydell@linaro.org
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