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* softfloat: Rename float*_is_nan() functions to float*_is_quiet_nan()Peter Maydell2011-01-021-1/+1
| | | | | | | | | | | | | | | | The softfloat functions float*_is_nan() were badly misnamed, because they return true only for quiet NaNs, not for all NaNs. Rename them to float*_is_quiet_nan() to more accurately reflect what they do. This change was produced by: perl -p -i -e 's/_is_nan/_is_quiet_nan/g' $(git grep -l is_nan) (with the results manually checked.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Nathan Froyd <froydnj@codesourcery.com> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-xxx: Use fprintf_function (format checking)Stefan Weil2010-10-301-2/+1
| | | | | | | | | | | | | fprintf_function uses format checking with GCC_FMT_ATTR. Format errors were fixed in * target-i386/helper.c * target-mips/translate.c * target-ppc/translate.c Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* remove exec-all.h inclusion from cpu.hPaolo Bonzini2010-07-031-1/+0
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* move cpu_pc_from_tb to target-*/exec.hPaolo Bonzini2010-07-032-5/+5
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* remove unused stuff from */exec.hPaolo Bonzini2010-07-031-2/+0
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* target-alpha: Implement RPCC.Richard Henderson2010-04-272-3/+3
| | | | | | | | | A minimal implementation that more or less corresponds to the user-level version used by target-i386. More hoops will want to be jumped through when alpha gets system-level emulation. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix load-locked/store-conditional.Richard Henderson2010-04-274-79/+138
| | | | | | | | Use an exception plus start_exclusive to implement the compare-and-swap. This follows the example set by the MIPS and PPC ports. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Indicate NORETURN status when raising exception.Richard Henderson2010-04-271-11/+14
| | | | | | | | When (indirectly) calling raise_exception, don't emit cleanup code at the end of the TB, as it is unused. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Enable NPTL.Richard Henderson2010-04-271-11/+18
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Update commentary for opcode 0x1A.Richard Henderson2010-04-271-4/+7
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Emit goto_tb opcodes.Richard Henderson2010-04-271-145/+191
| | | | | | | | | Use an ExitStatus enumeration instead of magic numbers as the return value from translate_one. Emit goto_tb opcodes when ending a TB via a direct branch. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement cvtlq inline.Richard Henderson2010-04-273-9/+22
| | | | | | | It's a simple shift and mask sequence. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement rs/rc properly.Richard Henderson2010-04-273-32/+17
| | | | | | | | | | | This is a per-cpu flag; there's no need for a spinlock of any kind. We were also failing to manipulate the flag with $31 as a target reg and failing to clear the flag on execution of a return-from-interrupt instruction. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement cpys{, n, e} inline.Richard Henderson2010-04-273-26/+75
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* alpha: add missing 'break', spotted by clang analyzerBlue Swirl2010-04-251-0/+1
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* alpha: remove dead assignments, spotted by clang analyzerBlue Swirl2010-04-251-7/+4
| | | | | | Value stored is never read. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* target-alpha: Use non-inverted arguments to gen_{f}cmov.Richard Henderson2010-04-101-18/+19
| | | | | | | | | The inverted conditions as argument to the function looks wrong at a glance inside translate_one. Since we have an easy function to produce the inversion now, use it. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Use setcond for int comparisons.Richard Henderson2010-04-101-21/+22
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement cvtql inline.Richard Henderson2010-04-103-30/+39
| | | | | | | | It's a simple mask and shift sequence. Also, fix a typo in the actual masks used. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Add flags markups to helpers.h.Richard Henderson2010-04-101-92/+92
| | | | | | | | Almost all alpha helpers are at least TCG_CALL_CONST and a fair few are also TCG_CALL_PURE. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Remove cpu_get_phys_page_debug from userspace emulationPaul Brook2010-03-121-5/+0
| | | | | | cpu_get_phys_page_debug makes no sense for userspace emulation, so remove it. Signed-off-by: Paul Brook <paul@codesourcery.com>
* Move TARGET_PHYS_ADDR_SPACE_BITS to target-*/cpu.h.Richard Henderson2010-03-121-1/+3
| | | | | | | | | | Removes a set of ifdefs from exec.c. Introduce TARGET_VIRT_ADDR_SPACE_BITS for all targets other than Alpha. This will be used for page_find_alloc, which is supposed to be using virtual addresses in the first place. Signed-off-by: Richard Henderson <rth@twiddle.net>
* alpha-linux-user: Implement signals.Richard Henderson2010-02-282-4/+3
| | | | | | | | | | Move userland PALcode handling into linux-user main loop so that we can send signals from there. This also makes alpha_palcode.c system-level only, so don't build it for userland. Add defines for GENTRAP PALcall mapping to signals. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement IEEE FP qualifiers.Richard Henderson2010-02-283-115/+688
| | | | | | | | | | | | | | | | IEEE FP instructions are split up so that the rounding mode coming from the instruction and exceptions (both masking and delivery) are handled external to the base FP operation. FP exceptions are properly raised for non-finite inputs to instructions that do not indicate software completion. A shortcut is applied if CONFIG_SOFTFLOAT_INLINE is defined at the top of translate.c: data is loaded and stored into FP_STATUS directly instead of using the functional interface defined by "softfloat.h". Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Mark helper_excp as NORETURN.Richard Henderson2010-02-231-1/+1
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Clean up arithmetic traps.Richard Henderson2010-02-232-10/+14
| | | | | | | | | Replace the EXCP_ARITH_OVERFLOW placeholder with the complete set of bits from the EXC_SUM IPR. Use them in the existing places where we raise arithmetic exceptions. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Reduce internal processor registers for user-mode.Richard Henderson2010-02-232-18/+33
| | | | | | | | | | | | The existing set of IPRs is totally irrelevant to user-mode emulation. Indeed, they most are irrelevant to implementing kernel-mode emulation, and would only be relevant to PAL-mode emulation, which I suspect that no one will ever attempt. Reducing the set of processor registers reduces the size of the CPU state. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Split up FPCR value into separate fields.Richard Henderson2010-02-232-57/+128
| | | | | | | | | | | | The fpcr_exc_status, fpcr_exc_mask, and fpcr_dyn_round fields are stored in <softfloat.h> format for convenience during regular execution. Revert the addition of float_exception_mask to float_status, added in ba0e276db4b51bd2255a5d5ff8902c70d32ade40. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Fix incorrect exception_index useBlue Swirl2010-02-141-1/+1
| | | | | | | | | | env->exception_index should be cleared with -1, not 0. See also 821b19fe923ac49a24cdb4af902584fdd019cee6. Spotted by Igor Kovalenko. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* kill regs_to_env and env_to_regsPaolo Bonzini2010-01-191-8/+0
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* target-alpha: Initialize fpcrRichard Henderson2009-12-231-0/+2
| | | | | | | Linux, at least, disables exceptions by default. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Emit tcg debug_insn_start.Richard Henderson2009-12-211-0/+5
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix float32_to_s vs zero exponent.Richard Henderson2009-12-171-12/+32
| | | | | | | | | There was a bug in float32_to_s that incorrectly mapped a zero exponent to 0x38. This meant 0.0f != 0. At the same time, fix a generic type punning bug in helper_memory_to_s and helper_s_to_memory. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix cvtlq.Richard Henderson2009-12-171-1/+3
| | | | | | | We were missing the 0xc0000000 mask, leading to incorrect results. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement fp branch/cmov inline.Richard Henderson2009-12-173-125/+110
| | | | | | | | | | | The old fcmov implementation had a typo: - tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]); which moved the condition, not the second source, to the destination. But it's also easy to implement the simplified fp comparison inline. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix compiler warning for gcc-4.3 (and older)Stefan Weil2009-12-161-0/+1
| | | | | | | | | | | | | | | "Old" compilers obviously are not able to recognise that all cases are handled here: qemu/target-alpha/helper.c:70: error: ‘round_mode’ may be used uninitialized in this function A small modification helps the compiler to do its jobs. gcc-4.4 does not need this, but is still not standard on all platforms. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix double log_cpu_state.Richard Henderson2009-12-131-1/+0
| | | | | | | The proper logging is handled by generic code. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix FMOV.Richard Henderson2009-12-131-3/+7
| | | | | | | Properly handle move from the zero register. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Expand ins*h inline.Richard Henderson2009-12-133-27/+45
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Expand msk*h inline.Richard Henderson2009-12-133-32/+49
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Expand msk*l inline.Richard Henderson2009-12-133-32/+30
| | | | | | | Similar in difficulty to ext*l, already expanded. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Expand ins*l inline.Richard Henderson2009-12-133-56/+59
| | | | | | | Similar in difficulty to ext*l, already expanded. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement RD/WRUNIQUE in the translatorRichard Henderson2009-12-131-10/+29
| | | | | | | | | When emulating user-mode only, there's no reason to exit the translation block to effect a call_pal. We can generate a move to/from the unique slot directly. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix fbcond branch offset.Richard Henderson2009-12-131-5/+4
| | | | | | | | The instructions use a disp21 like all other branch insns, not the disp16 that was being passed. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Rewrite gen_ext_[hl] in terms of zapnot.Richard Henderson2009-12-131-32/+25
| | | | | | | | | The architecture manual specifies the EXT instructions in terms of the ZAPNOT operation; writing it that way in the translator makes things a bit clearer. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Expand zap/zapnot with immediate inline.Richard Henderson2009-12-131-2/+59
| | | | | | | | The vast majority of zap instructions have an immediate operand, since zapnot is the canonical method to zero-extend from u16 or u32. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix -d in_asmRichard Henderson2009-12-131-15/+4
| | | | | | | | | | Generic disassembly was incorrectly keyed on ALPHA_DEBUG_DISAS rather than the generic DEBUG_DISAS. Use qemu_log_mask for additional LOG_DISAS output. Delete some random insn_count logging noise from gen_intermediate_code_internal. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Implement missing MVI instructions.Richard Henderson2009-12-133-30/+231
| | | | | Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fixes for alpha-linux syscalls.Richard Henderson2009-12-133-39/+128
| | | | | | | | | | | | | | | | | | 1. Add correct definitions of error numbers. 2. Implement SYS_osf_sigprocmask 3. Implement SYS_osf_get/setsysinfo for IEEE_FP_CONTROL. This last requires exposing the FPCR value to do_syscall. Since this value is actually split up into the float_status, expose routines from helper.c to access it. Finally, also add a float_exception_mask field to float_status. We don't actually use it to control delivery of exceptions to the emulator yet, but simply hold the value that we placed there when loading/storing the FPCR. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Honor the -cpu command line argument.Richard Henderson2009-12-131-2/+42
| | | | | | | Also change the default cpu to ev67. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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