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qemu-android / qemu-android / 79c18be7dfe660ab48f9f535e6cabd38c9f1d73b
commit79c18be7dfe660ab48f9f535e6cabd38c9f1d73b[log] [tgz]
authorPeter Maydell <peter.maydell@linaro.org>Fri Mar 11 08:12:24 2011 +0000
committerAurelien Jarno <aurelien@aurel32.net>Sun Apr 03 17:19:38 2011 +0200
tree945bc26f5ce9c2bcdccd0019435732d3b2af3093
parent0e3261098ff41c40ce3381b8ad7cff330458da3d [diff]
target-arm: Correct ABD's handling of negative zeroes

Implement ABD by taking the absolute value of the difference
of the operands (as the ARM ARM specifies) rather than by
flipping the order of the operands to the subtract based
on the results of a comparison. The latter approch gives
the wrong answers for some edge cases like negative zero.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
1 file changed
tree: 945bc26f5ce9c2bcdccd0019435732d3b2af3093
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. docs/
  7. fpu/
  8. fsdev/
  9. gdb-xml/
  10. hw/
  11. libcacard/
  12. linux-user/
  13. net/
  14. pc-bios/
  15. QMP/
  16. roms/
  17. scripts/
  18. slirp/
  19. sysconfigs/
  20. target-alpha/
  21. target-arm/
  22. target-cris/
  23. target-i386/
  24. target-lm32/
  25. target-m68k/
  26. target-microblaze/
  27. target-mips/
  28. target-ppc/
  29. target-s390x/
  30. target-sh4/
  31. target-sparc/
  32. tcg/
  33. tests/
  34. ui/
  35. .gitignore
  36. .gitmodules
  37. a.out.h
  38. acl.c
  39. acl.h
  40. aes.c
  41. aes.h
  42. aio.c
  43. alpha-dis.c
  44. alpha.ld
  45. arch_init.c
  46. arch_init.h
  47. arm-dis.c
  48. arm-semi.c
  49. arm.ld
  50. async.c
  51. balloon.c
  52. balloon.h
  53. bitmap.c
  54. bitmap.h
  55. bitops.c
  56. bitops.h
  57. block-migration.c
  58. block-migration.h
  59. block.c
  60. block.h
  61. block_int.h
  62. blockdev.c
  63. blockdev.h
  64. bswap.h
  65. bt-host.c
  66. bt-host.h
  67. bt-vhci.c
  68. buffered_file.c
  69. buffered_file.h
  70. cache-utils.c
  71. cache-utils.h
  72. Changelog
  73. check-qdict.c
  74. check-qfloat.c
  75. check-qint.c
  76. check-qjson.c
  77. check-qlist.c
  78. check-qstring.c
  79. cmd.c
  80. cmd.h
  81. CODING_STYLE
  82. compatfd.c
  83. compatfd.h
  84. config.h
  85. configure
  86. console.c
  87. console.h
  88. COPYING
  89. COPYING.LIB
  90. cpu-all.h
  91. cpu-common.h
  92. cpu-defs.h
  93. cpu-exec.c
  94. cpus.c
  95. cpus.h
  96. cris-dis.c
  97. cursor.c
  98. cursor_hidden.xpm
  99. cursor_left_ptr.xpm
  100. cutils.c
  101. def-helper.h
  102. device_tree.c
  103. device_tree.h
  104. dis-asm.h
  105. disas.c
  106. disas.h
  107. dma-helpers.c
  108. dma.h
  109. dyngen-exec.h
  110. elf.h
  111. envlist.c
  112. envlist.h
  113. exec-all.h
  114. exec.c
  115. gdbstub.c
  116. gdbstub.h
  117. gen-icount.h
  118. HACKING
  119. hmp-commands.hx
  120. host-utils.c
  121. host-utils.h
  122. hpet.h
  123. hppa-dis.c
  124. hppa.ld
  125. i386-dis.c
  126. i386.ld
  127. ia64-dis.c
  128. ia64.ld
  129. input.c
  130. iohandler.c
  131. ioport-user.c
  132. ioport.c
  133. ioport.h
  134. iorange.h
  135. iov.c
  136. iov.h
  137. json-lexer.c
  138. json-lexer.h
  139. json-parser.c
  140. json-parser.h
  141. json-streamer.c
  142. json-streamer.h
  143. kvm-all.c
  144. kvm-stub.c
  145. kvm.h
  146. libfdt_env.h
  147. LICENSE
  148. linux-aio.c
  149. m68k-dis.c
  150. m68k-semi.c
  151. m68k.ld
  152. MAINTAINERS
  153. Makefile
  154. Makefile.dis
  155. Makefile.hw
  156. Makefile.objs
  157. Makefile.target
  158. Makefile.user
  159. microblaze-dis.c
  160. migration-exec.c
  161. migration-fd.c
  162. migration-tcp.c
  163. migration-unix.c
  164. migration.c
  165. migration.h
  166. mips-dis.c
  167. mips.ld
  168. module.c
  169. module.h
  170. monitor.c
  171. monitor.h
  172. nbd.c
  173. nbd.h
  174. net-checksum.c
  175. net.c
  176. net.h
  177. notify.c
  178. notify.h
  179. os-posix.c
  180. os-win32.c
  181. osdep.c
  182. osdep.h
  183. oslib-posix.c
  184. oslib-win32.c
  185. path.c
  186. pci-ids.txt
  187. pflib.c
  188. pflib.h
  189. poison.h
  190. posix-aio-compat.c
  191. ppc-dis.c
  192. ppc.ld
  193. ppc64.ld
  194. qbool.c
  195. qbool.h
  196. qdict-test-data.txt
  197. qdict.c
  198. qdict.h
  199. qemu-aio.h
  200. qemu-barrier.h
  201. qemu-char.c
  202. qemu-char.h
  203. qemu-common.h
  204. qemu-config.c
  205. qemu-config.h
  206. qemu-doc.texi
  207. qemu-error.c
  208. qemu-error.h
  209. qemu-img-cmds.hx
  210. qemu-img.c
  211. qemu-img.texi
  212. qemu-io.c
  213. qemu-lock.h
  214. qemu-log.h
  215. qemu-malloc.c
  216. qemu-nbd.c
  217. qemu-nbd.texi
  218. qemu-objects.h
  219. qemu-option.c
  220. qemu-option.h
  221. qemu-options.h
  222. qemu-options.hx
  223. qemu-os-posix.h
  224. qemu-os-win32.h
  225. qemu-queue.h
  226. qemu-sockets.c
  227. qemu-tech.texi
  228. qemu-thread-posix.c
  229. qemu-thread-posix.h
  230. qemu-thread-win32.c
  231. qemu-thread-win32.h
  232. qemu-thread.h
  233. qemu-timer-common.c
  234. qemu-timer.c
  235. qemu-timer.h
  236. qemu-tool.c
  237. qemu-x509.h
  238. qemu.sasl
  239. qemu_socket.h
  240. qerror.c
  241. qerror.h
  242. qfloat.c
  243. qfloat.h
  244. qint.c
  245. qint.h
  246. qjson.c
  247. qjson.h
  248. qlist.c
  249. qlist.h
  250. qmp-commands.hx
  251. qobject.h
  252. qstring.c
  253. qstring.h
  254. range.h
  255. readline.c
  256. readline.h
  257. README
  258. rules.mak
  259. rwhandler.c
  260. rwhandler.h
  261. s390-dis.c
  262. s390.ld
  263. savevm.c
  264. sh4-dis.c
  265. simpletrace.c
  266. simpletrace.h
  267. softmmu-semi.h
  268. softmmu_defs.h
  269. softmmu_exec.h
  270. softmmu_header.h
  271. softmmu_template.h
  272. sparc-dis.c
  273. sparc.ld
  274. sparc64.ld
  275. spice-qemu-char.c
  276. sysemu.h
  277. targphys.h
  278. tcg-runtime.c
  279. thunk.c
  280. thunk.h
  281. TODO
  282. trace-events
  283. translate-all.c
  284. uboot_image.h
  285. usb-bsd.c
  286. usb-linux.c
  287. usb-stub.c
  288. VERSION
  289. version.rc
  290. vgafont.h
  291. vl.c
  292. x86_64.ld