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306 commits

Author SHA1 Message Date
Nguyen Anh Quynh 6f3d48077e rename UC_QUERY_ARM_MODE to a more generic name UC_QUERY_MODE. make all bindings support this new constant 2016-01-24 01:08:23 +08:00
Nguyen Anh Quynh 4dbad9aa9b add new API uc_query() to query internal status of emulator at runtime 2016-01-23 17:14:44 +08:00
Nguyen Anh Quynh 38d1443504 Merge branch 'hook-refactor' of https://github.com/lunixbochs/unicorn into lunixbochs-hook-refactor 2016-01-23 13:24:12 +08:00
Ryan Hileman 2ac1281f82 rework code/block tracing 2016-01-22 19:07:50 -08:00
Nguyen Anh Quynh 249e2ac0a0 Merge branch 'hook-refactor' of https://github.com/lunixbochs/unicorn into lunixbochs-hook-refactor 2016-01-23 10:58:37 +08:00
Ryan Hileman 0886ae8ede rework code/block tracing 2016-01-22 18:42:27 -08:00
Ryan Hileman 93052f6566 refactor to allow multiple hooks for one type 2016-01-22 18:41:43 -08:00
xorstream b4b83ff207 moar fixes 2016-01-23 12:56:47 +11:00
xorstream d8aaa2f44c Fixes to runtime arm mask checks 2016-01-23 12:44:12 +11:00
xorstream 678d645b80 Fix uc_mode usage in source code 2016-01-23 12:29:22 +11:00
xorstream 8763d426c2 Fix uc_mode usage in source code 2016-01-23 12:08:49 +11:00
Nguyen Anh Quynh 6490b4f2a9 arm64: fix the issue of multiple definition of aarch64_tb_set_jmp_target (issue #387) 2016-01-22 22:44:18 +08:00
Nguyen Anh Quynh 309abbe453 remove qemu/config-all-disas.mak 2016-01-22 17:11:57 +08:00
Nguyen Anh Quynh 3eb51116b9 arm64: fix the access to tcg_op_defs[] in arm64 backend (issue #387) 2016-01-22 11:35:01 +08:00
Nguyen Anh Quynh 840eb54f05 Revert "arm64: fix the access to tcg_op_defs[] in arm64 backend (issue #387)" 
This reverts commit 3000ca6abf.
 2016-01-22 11:33:36 +08:00
Nguyen Anh Quynh 3000ca6abf arm64: fix the access to tcg_op_defs[] in arm64 backend (issue #387) 2016-01-22 11:33:28 +08:00
Nguyen Anh Quynh 07bd81bda6 do not redefine tb_set_jmp_target1. this partly fixes issue #387 2016-01-22 11:29:22 +08:00
Nguyen Anh Quynh 839ef672b0 only declare use_idiv_instructions_rt when __ARM_ARCH_EXT_IDIV__ is not defined 2016-01-19 00:19:28 +08:00
Nguyen Anh Quynh 3b52af4fbd avoid confusion between macro & variable use_idiv_instructions (ARM backend) 2016-01-18 23:53:50 +08:00
Nguyen Anh Quynh d9249b91c2 add some missing symbols for ARM backend 2016-01-18 20:42:45 +08:00
petevine 8db7f79daf Finish adding getauxval 2016-01-18 12:48:49 +01:00
petevine 1bf85461c2 Add getauxval.c back 2016-01-18 12:47:32 +01:00
Nguyen Anh Quynh 7695fb1578 x86: no need to reset env->invalid_error in x86_reg_reset() as we always do that in cpu_exec() 2016-01-12 01:01:11 +08:00
farmdve c9f4bd27cc Reset env->invalid_error before executing a translation block. 2016-01-11 18:12:57 +02:00
Nguyen Anh Quynh a0aa26d6ee c89 2016-01-10 23:34:36 +08:00
Nguyen Anh Quynh 580bc7b56a cleanup 2016-01-10 23:10:00 +08:00
farmdve 036763d6ae Fix memory leaks as reported by DrMemory and Valgrind. 
ARM and probably the rest of the arches have significant memory leaks as
they have no release interface.

Additionally, DrMemory does not have 64-bit support and thus I can't
test the 64-bit version under Windows. Under Linux valgrind supports
both 32-bit and 64-bit but there are different macros and code for Linux
and Windows.
 2016-01-08 01:42:56 +02:00
Nguyen Anh Quynh 13726b3d40 Merge branch 'master' into cygwin 2016-01-07 23:17:32 +07:00
farmdve 2304bbfc96 Remove more instances of tcg_register_jit 2016-01-07 16:39:41 +02:00
Nguyen Anh Quynh bfeb08d1ba fix some compilation warning 2016-01-06 14:11:21 +08:00
Nguyen Anh Quynh e8a295991f update qemu/header_gen.py 2016-01-06 00:44:29 +07:00
Nguyen Anh Quynh e0cb02569e remove unused tcg_register_jit() and related code 2016-01-05 16:02:34 +07:00
Nguyen Anh Quynh 075ccadbe9 x86: set s->pc in disas_insn() early to fix uninitialized read issue. bug reported by @farmdve 2016-01-03 08:25:51 +07:00
Nguyen Anh Quynh 19930b0514 spaces 2016-01-01 14:15:01 +08:00
Nguyen Anh Quynh b3ebd1b7cb Merge branch 'master' of https://github.com/iroiro123/unicorn into iroiro123-master 2016-01-01 14:01:39 +08:00
Nguyen Anh Quynh f935469658 mips: handle memory redirect for all APIs. this fixes issue #347 2015-12-28 15:19:30 +08:00
Nguyen Anh Quynh f10d79e95f x86: fix a compilation warning on unused variable 2015-12-28 13:06:25 +08:00
Nguyen Anh Quynh b5feddbf1e indentation 2015-12-28 13:04:59 +08:00
Nguyen Anh Quynh 99b401c609 Merge branch 'la-fixed' of https://github.com/JCYang/unicorn into JCYang-la-fixed 2015-12-28 12:21:31 +08:00
Spl3en bb375e4fa9 Reset correctly the register CR0 in protected mode by calling cpu_x86_update_cr0 instead of setting it manually. 2015-12-25 04:55:15 +01:00
Spl3en 9ca993d8aa Restore the protected mode check. 2015-12-24 18:39:19 +01:00
Spl3en 4c3ad139ea (Fix #341) SYSENTER instruction is not properly hooked with uc_hook_add in x86 emulation. 
helper_sysenter in qemu/target-i386/seg_helper.c didn't check properly if a call interrupt callback was registred.
It has been fixed by copying the helper_syscall behavior.
 2015-12-24 16:00:22 +01:00
Nguyen Anh Quynh ed319bda0b x86: identity map guest address to host address. this fixes issue #300 2015-12-24 09:51:17 +08:00
Nguyen Anh Quynh 4117a111eb mips: handle hook callback for blikely instruction properly. this fixes issue #330, #331 2015-12-23 01:40:03 +08:00
JC Yang 8ef018a2cb Fix possible wrong conditional branch in generated host code by fixing 
the tcg_liveness_analysis().
Refer to https://github.com/unicorn-engine/unicorn/issues/287 for further info.
 2015-12-21 18:01:01 +08:00
Hiroyuki Uekawa 6445c80b29 Build for Cygwin 2015-12-20 22:00:35 +09:00
Nguyen Anh Quynh b72671c6d5 sparc, arm, m68k: check for exit request after every hooked instruction 2015-12-20 12:28:15 +08:00
Nguyen Anh Quynh 4f268febb4 mips: check for exit request after every hooked instruction. this fix issue #329 2015-12-20 12:23:36 +08:00
Nguyen Anh Quynh 771f9f7c3b fix conflicts when merging map-ptr branch to master branch 2015-12-17 08:12:02 +08:00
Nguyen Anh Quynh 8d3265d9e1 mips: remove unused variable is_bc_slot 2015-12-16 23:06:17 +08:00
xorstream 395251d3e8 Fix codehook for MIPS instructions in delay slot 2015-12-15 17:02:56 +11:00
Nguyen Anh Quynh 74aeef217c Merge branch 'master' of https://github.com/unicorn-engine/unicorn 2015-12-13 13:11:54 +08:00
Nguyen Anh Quynh bc63102e50 mips: only patch instruction size when there is a callback on the instruction. this fixes issue #282 2015-12-13 13:11:40 +08:00
farmdve 8b79a872d0 Fix segfault introduced in my previous commits. 2015-12-11 22:35:25 +02:00
Nguyen Anh Quynh f21fa3d966 do not flush TB when l1_map is uninitialized. this fixes issue #280, #284 2015-12-12 03:09:38 +08:00
Nguyen Anh Quynh a142611f56 sparc: set compute functions for icc_table[] & xcc_table[]. this fixes issue #289 2015-12-12 00:41:09 +08:00
Nguyen Anh Quynh 74986cc59a g_free() can handle NULL pointer 2015-12-11 11:25:35 +08:00
farmdve 3e57615c76 Fix uc_mem_unmap memory leak and in uc_close. 
It appears the problem is that we are not calling the memory region
destructor. After modifying memory_unmap to include the destructor call
for the memory region, the memory is freed.

Furthermore in uc_close we must explicitly free any blocks that were not
unmapped by the user to prevent leaks.

This should fix issue 305.
 2015-12-11 02:42:31 +02:00
Ryan Hileman 230cbd5330 add permissions to map_ptr api 2015-11-28 11:28:31 -08:00
Nguyen Anh Quynh 4a759cebb5 set permission for memory region allocated by memory_map_ptr(). this fixes the segfault in sample_x86.c, function test_x86_map_ptr() 2015-11-28 17:11:27 +08:00
Ryan Hileman 6d21ebabea implement host-controlled memory mapping for #261 2015-11-27 23:30:36 -08:00
Nguyen Anh Quynh 42b8879bb2 Merge branch 'master' of https://github.com/farmdve/unicorn into farmdve-master 2015-11-18 00:45:55 +08:00
Nguyen Anh Quynh 3302b9798c add some debug helper on generated machine code 2015-11-18 00:43:18 +08:00
farmdve 65a649dec0 Fix issue #269 
Patch from here
http://lists.nongnu.org/archive/html/qemu-devel/2015-11/msg03848.html

Also fix another potential issue with constants from
bbeb82395e (diff-9e0011b4d4a5890b309421630e6d86c3)
 2015-11-17 18:34:38 +02:00
Nguyen Anh Quynh edaea7020b x86: on self-modifying code, generate JIT code until end of block. this fixes issue #266 2015-11-16 21:55:42 +08:00
Nguyen Anh Quynh 9099755ca1 flush JIT cache before finishing emulation. this fixes issue #263. TODO: optimize this for better performance 2015-11-13 23:57:03 +08:00
farmdve 1ba39a582c change tabs to whitespaces... 2015-11-13 16:53:01 +02:00
farmdve 661714d0c2 Potential fix for issue #262/#263 2015-11-13 16:51:59 +02:00
Nguyen Anh Quynh d126644bb2 Merge pull request #259 from lunixbochs/multiarch 
improve multiarch support
 2015-11-12 15:11:06 +08:00
Ryan Hileman ad5cd37551 improve multiarch support 2015-11-11 22:48:21 -08:00
Nguyen Anh Quynh 2f297bdd3a handle some errors properly so avoid exit() during initialization. this fixes issue #237 2015-11-12 01:43:41 +08:00
Nguyen Anh Quynh 272293556a do not abort() when memory is insufficient. this fixes issue #244 2015-11-10 11:44:29 +08:00
Nguyen Anh Quynh 938d0b89eb x86: check for exit request after every hooked instruction. this should fix issue #232 2015-11-07 01:02:45 +08:00
Nguyen Anh Quynh 51323c9c17 x86: properly calculate EFLAGS when UC_HOOK_CODE is used. this should fix issue #246 2015-11-05 20:26:39 +08:00
Nguyen Anh Quynh b66a323b19 do not free MemoryRegion in memory_unmap() because it will be unref later in memory_region_unref(). this fixes issue #202 2015-10-28 01:26:59 +08:00
Nguyen Anh Quynh 3a36e327ab support memory redirection, so the issue #217 is fixed 2015-10-27 14:37:03 +08:00
Ryan Hileman 8c60d0dca5 allow setting x86 segment base to host-sized value 2015-10-23 00:15:08 -07:00
Nguyen Anh Quynh 142d3a6f72 arm: allow to read CPSR register 2015-10-17 15:59:27 +08:00
feliam b43f89566f Bugfix 2016-03-15 12:17:40 -03:00
Nguyen Anh Quynh 75e5fb466c x86: fix writing to UC_X86_REG_FPCW 2016-03-14 09:27:46 +08:00
feliam 23b3f651f9 Indentation 2016-03-10 07:45:36 -03:00
feliam 0a3799eada FPU control word and tags 2016-03-09 19:14:33 -03:00
feliam ff66a72d7b GDT/LDT/IDT/FPU access from python bingings 2016-03-09 18:07:38 -03:00
Nguyen Anh Quynh 600a1af710 Merge branch 'master' of https://github.com/unicorn-engine/unicorn 2015-10-03 15:46:19 +08:00
Nguyen Anh Quynh 9e64cba6ec Rename some hook related enums: 
- UC_ERR_READ_INVALID -> UC_ERR_READ_UNMAPPED
 - UC_ERR_WRITE_INVALID -> UC_ERR_WRITE_UNMAPPED
 - UC_ERR_FETCH_INVALID -> UC_ERR_FETCH_UNMAPPED
 - UC_MEM_READ_INVALID -> UC_MEM_READ_UNMAPPED
 - UC_MEM_WRITE_INVALID -> UC_MEM_WRITE_UNMAPPED
 - UC_MEM_FETCH_INVALID -> UC_MEM_FETCH_UNMAPPED
 - UC_HOOK_MEM_READ_INVALID -> UC_HOOK_MEM_READ_UNMAPPED
 - UC_HOOK_MEM_WRITE_INVALID -> UC_HOOK_MEM_WRITE_UNMAPPED
 - UC_HOOK_MEM_FETCH_INVALID -> UC_HOOK_MEM_FETCH_UNMAPPED
 - UC_HOOK_MEM_INVALID -> UC_HOOK_MEM_UNMAPPED

This also renames some newly added macros to use _INVALID postfix:

 - UC_HOOK_MEM_READ_ERR -> UC_HOOK_MEM_READ_INVALID
 - UC_HOOK_MEM_WRITE_ERR -> UC_HOOK_MEM_WRITE_INVALID
 - UC_HOOK_MEM_FETCH_ERR -> UC_HOOK_MEM_FETCH_INVALID
 - UC_HOOK_MEM_ERR -> UC_HOOK_MEM_INVALID

Fixed all the bindings Java, Go & Python.
 2015-09-30 14:46:55 +08:00
Nguyen Anh Quynh 3ca8774f1a arm: properly handle the case when first insn in block is until address 2015-09-30 14:42:08 +08:00
Nguyen Anh Quynh 4a42041a83 handle 'bad ram pointer' case. this fixes issue #159 2015-09-29 18:22:22 +08:00
Nguyen Anh Quynh 2b0b4169bc mips: advance PC for SYSCALL instruction. this fixes issue #157 2015-09-28 10:58:43 +08:00
Nguyen Anh Quynh 53ce8f217d mips: handle delay slot better for branch instructions. this should fix issue #155 2015-09-27 15:05:40 +08:00
Nguyen Anh Quynh 728fe750b9 Merge pull request #140 from cherepanov74/master 
Fixes crash on Windows 64bit
 2015-09-27 11:10:02 +08:00
Nguyen Anh Quynh 886946dcf4 do not use syscall to quit emulation. this can fix issues #147 & #148 2015-09-26 16:49:00 +08:00
Nguyen Anh Quynh 15f087be74 Merge branch 'master' of https://github.com/unicorn-engine/unicorn 2015-09-26 10:44:15 +08:00
Nguyen Anh Quynh 90eb8f2e72 This commit continues the PR #111 
- Allow to register handler separately for invalid memory access
- Add new memory events for hooking:
   - UC_MEM_READ_INVALID, UC_MEM_WRITE_INVALID, UC_MEM_FETCH_INVALID
   - UC_HOOK_MEM_READ_PROT, UC_HOOK_MEM_WRITE_PROT, UC_HOOK_MEM_FETCH_PROT
- Rename UC_ERR_EXEC_PROT to UC_ERR_FETCH_PROT
- Change API uc_hook_add() so event type @type can be combined from hooking types
 2015-09-24 14:18:02 +08:00
Sean Heelan dfb4a9d9ad Revert "Remove uc_cb_eventmem_t as it is identical to uc_cb_hookmem_t" 
As pointed out by aquynh the return types are actually different. A
uc_cb_eventmem_t callback returns a bool, while uc_cb_hookmem_t has a
void return type.

This reverts commit cb2b97f26c.
 2015-09-23 12:51:47 +07:00
Sean Heelan cb2b97f26c Remove uc_cb_eventmem_t as it is identical to uc_cb_hookmem_t, as per 
issue #111
 2015-09-22 12:37:05 +07:00
Nguyen Anh Quynh 14a01b5186 mips: handle delay slot so do not duplicate calling instruction handler. this fixes issue #133 2015-09-22 11:59:53 +08:00
Nguyen Anh Quynh a853eb6363 mips, m68k: early check to see if the address of BB is the until address 2015-09-22 10:24:26 +08:00
danghvu 0c67f41ed9 Fix issue #118 2015-09-21 20:30:05 -05:00
Nguyen Anh Quynh d7d4be25b1 arm64: early check to see if the address of this block is the until address 2015-09-21 10:26:33 +08:00
Nguyen Anh Quynh 9aa04d9496 tb_gen_code(): only check to link next page if tb->size > 0 (so we skip empty block) 2015-09-20 00:05:17 +07:00
Nguyen Anh Quynh 5005b4a6e2 arm: early check to see if the address of this block is the until address 2015-09-17 09:16:57 +07:00
Nguyen Anh Quynh d6b9c31dc9 sparc: more cleanup 2015-09-16 16:04:12 +07:00
mothran 893e6abcbd first atttempt at SPARC64 fixes, no longer SEGV's, set CPU model to: Sun UltraSparc IV 2015-09-15 23:12:03 -07:00
mothran f4894a1c77 removed unneed cases in the switch statement 2015-09-14 20:44:50 -07:00
mothran 6b521e9e9b update the sparc reg read/write to include o/l/i registers 2015-09-14 20:03:32 -07:00
cherepanov74 2fc483ec47 Fixes crash on Windows 64bit 2015-09-14 20:42:29 +02:00
mothran 7dc41a8e4e update the regwptr upon reset 2015-09-13 18:10:28 -07:00
mothran 657a6c3e25 modified the sparc reg get/set functions to use the current reg window ptr 2015-09-12 10:29:35 -07:00
Nguyen Anh Quynh ab337ef65a Merge branch 'master' of https://github.com/unicorn-engine/unicorn 2015-09-11 15:58:58 +08:00
mothran afecfee565 added SPARC sp / fp registers, also updated uint32_t's to uint64_t's in SPARC64 2015-09-10 23:20:52 -07:00
Nguyen Anh Quynh d7ef204398 rename error codes ERR_MEM_READ, ERR_MEM_WRITE, ERR_MEM_FETCH 2015-09-09 16:25:48 +08:00
Nguyen Anh Quynh d3d38d3f21 handle read/write/fetch from unaligned addresses. this adds new error codes UC_ERR_READ_UNALIGNED, UC_ERR_WRITE_UNALIGNED & UC_ERR_FETCH_UNALIGNED 2015-09-09 15:52:15 +08:00
Nguyen Anh Quynh 18b6680e96 mips: disable debug output 2015-09-08 23:56:25 +08:00
Nguyen Anh Quynh 2929138c99 sparc: do not call INSN handler on until-address, and verify until-address early when translating block in JIT frontend. 2015-09-08 13:26:53 +08:00
Nguyen Anh Quynh 7a5d790ade rename UC_MEM_EXE to UC_MEM_FETCH 2015-09-08 12:55:56 +08:00
Nguyen Anh Quynh c1dd9fbfdf arm64: handle SP register. this fixes issue #122 2015-09-08 08:40:42 +08:00
Nguyen Anh Quynh 6c132bc673 arm: fix #114 by enabling cortex-a15 model. FIXME: enable this on demand with an API 2015-09-08 01:08:37 +08:00
Nguyen Anh Quynh 3ac8615cbb arm: handle invalid instruction. this fixes issue #114 2015-09-08 00:43:09 +08:00
Nguyen Anh Quynh 9e4ed32e8a x86: handle SYSCALL even if there is no handler 2015-09-07 10:19:45 +08:00
Nguyen Anh Quynh a166c24f8e x86: correct EIP of INT instruction by updating it only after calling interrupt handler 2015-09-06 14:58:11 +08:00
Chris Eagle e9c6b11506 add mem_api sample program and fix check for wrong NX related constant in cputlb.c 2015-09-04 10:27:03 -07:00
Chris Eagle 8cfd902e4b Move mem_xxx samples to regress. Add check to only flush tlb when unmapping if there is a current cpu 2015-09-04 00:48:24 -07:00
Nguyen Anh Quynh 022f8d82d1 handle memory fetch as invalid memory access. now we can also report error if exec memory is unmapped (UC_ERR_MEM_FETCH) 2015-09-04 11:55:17 +08:00
Nguyen Anh Quynh 84e3b5c897 cast all the values to write to registers in uc_reg_write() to unsigned type. this fixes issue #98 2015-09-04 11:17:08 +08:00
Jonathon Reinhart da46071c7d bring new code and samples up-to-date with API changes 2015-09-03 22:15:49 -04:00
Jonathon Reinhart 5e9d07a40a Merge remote-tracking branch 'upstream/master' into change-handle-based-api 2015-09-03 22:01:52 -04:00
Chris Eagle 2da46caef7 smooth out split_region related code 2015-09-03 12:26:36 -07:00
Nguyen Anh Quynh 6ca85a72ed simplify uc_mem_protect() & uc_mem_unmap() 2015-09-04 01:02:38 +08:00
Nguyen Anh Quynh 9f9d57e84f cleaning & indentation 2015-09-03 18:16:49 +08:00
Nguyen Anh Quynh b8d4240240 solve merging conflict 2015-09-03 18:05:21 +08:00
Jonathon Reinhart bd0a6921cc Merge remote-tracking branch 'upstream/master' into change-handle-based-api 2015-09-02 21:04:43 -04:00
Nguyen Anh Quynh be659d201d fix confusion betweet UC_MEM_xxx & UC_HOOK_MEM_xxx. fix issue #93 2015-09-03 01:13:57 +08:00
Nguyen Anh Quynh 2d9db36a2b fix some errors introduced by the last commit on qemu-thread-win32.c 2015-09-02 01:34:23 -07:00
Nguyen Anh Quynh 8b39ec5b0c initial support to remove a static variable in qemu-thread-win32.c 2015-09-02 16:13:12 +08:00
Nguyen Anh Quynh a94e31165d x86: fix issue #95 2015-09-02 12:00:43 +08:00
Ryan Hileman db8f499fe9 fix crash on some SSE instructions 2015-09-01 19:12:51 -07:00
Chris Eagle 49d1fa7ebd Merge branch 'master' into mem_map_ex_cse 2015-09-01 12:13:53 -07:00
Chris Eagle 2c4f3769d4 clean up mem_protect related constants and error codes 2015-09-01 12:10:09 -07:00
Jonathon Reinhart 2c802a3e4b Merge remote-tracking branch 'upstream/master' into change-handle-based-api 
# Conflicts:
#	qemu/target-i386/unicorn.c
 2015-09-01 13:17:03 -04:00
Nguyen Anh Quynh 90fc201f8d x86: enable bunch of instructions via CPUID. this fixes issue #91 2015-09-02 00:16:45 +08:00
Chris Eagle 73027026ce Merge branch 'master' into mem_map_ex_cse 2015-08-31 23:49:54 -07:00
Chris Eagle 658e399776 clean up mem_protect related constants 2015-08-31 19:08:48 -07:00
Nguyen Anh Quynh bea73ef213 stop emulation when hitting invalid code address. this fixes issue #82 2015-09-01 00:17:55 +08:00
Chris Eagle b27e987932 Add target_page_size member to uc_struct to track TARGET_PAGE_SIZE 2015-08-31 01:00:44 -07:00
Chris Eagle 410e317e92 dont use explicit page size, use TARGET_PAGE_SIZE 2015-08-30 21:24:14 -07:00
Chris Eagle 9e4e96ff47 final updates for uc_mem_unmap, uc_mem_protect, and support ro UC_PROT_EXEC permission 2015-08-30 19:50:18 -07:00
mothran 6aa2b73bea removed ifdef for x64 in fpu saving 2015-08-30 19:39:46 -07:00
mothran e1ab761e8a fixed typo 2015-08-30 19:32:39 -07:00
mothran 2b6f806759 removed testing printf 2015-08-30 19:22:41 -07:00
mothran 4cd5fa3811 fpip x64 fxsave working with using hflags to check CPU mode 2015-08-30 18:56:55 -07:00