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qemu / qemu / 7b2919a0b4b3e408e5fee0841c8d717e888917de
commit7b2919a0b4b3e408e5fee0841c8d717e888917de[log] [tgz]
authorJuha.Riihimaki@nokia.com <Juha.Riihimaki@nokia.com>Wed Oct 21 12:17:38 2009 +0200
committerAurelien Jarno <aurelien@aurel32.net>Fri Oct 23 17:22:13 2009 +0200
treedf7ff7a06a1b44a2f069bef54b966c2293bffe72
parentb75263d6533c2ffa60bee16525d9908249e79541 [diff]
target-arm: optimize thumb 32-bit multiply

Current implementation of thumb mul instruction is implemented as a
32x32->64 multiply which then uses only 32 least significant bits of
the result. Replace that with a simple 32x32->32 multiply.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
1 file changed
tree: df7ff7a06a1b44a2f069bef54b966c2293bffe72
  1. audio/
  2. block/
  3. bsd-user/
  4. darwin-user/
  5. default-configs/
  6. fpu/
  7. gdb-xml/
  8. hw/
  9. linux-user/
  10. pc-bios/
  11. roms/
  12. slirp/
  13. target-alpha/
  14. target-arm/
  15. target-cris/
  16. target-i386/
  17. target-m68k/
  18. target-microblaze/
  19. target-mips/
  20. target-ppc/
  21. target-sh4/
  22. target-sparc/
  23. tcg/
  24. tests/
  25. .gitignore
  26. .gitmodules
  27. a.out.h
  28. acl.c
  29. acl.h
  30. aes.c
  31. aes.h
  32. aio.c
  33. alpha-dis.c
  34. alpha.ld
  35. arm-dis.c
  36. arm-semi.c
  37. arm.ld
  38. balloon.h
  39. block.c
  40. block.h
  41. block_int.h
  42. bswap.h
  43. bt-host.c
  44. bt-host.h
  45. bt-vhci.c
  46. buffered_file.c
  47. buffered_file.h
  48. cache-utils.c
  49. cache-utils.h
  50. Changelog
  51. check-qdict.c
  52. check-qint.c
  53. check-qlist.c
  54. check-qstring.c
  55. cmd.c
  56. cmd.h
  57. cocoa.m
  58. CODING_STYLE
  59. config.h
  60. configure
  61. console.c
  62. console.h
  63. COPYING
  64. COPYING.LIB
  65. cpu-all.h
  66. cpu-common.h
  67. cpu-defs.h
  68. cpu-exec.c
  69. create_config
  70. cris-dis.c
  71. curses.c
  72. curses_keys.h
  73. cutils.c
  74. d3des.c
  75. d3des.h
  76. def-helper.h
  77. device_tree.c
  78. device_tree.h
  79. dis-asm.h
  80. disas.c
  81. disas.h
  82. dma-helpers.c
  83. dma.h
  84. dyngen-exec.h
  85. elf.h
  86. envlist.c
  87. envlist.h
  88. exec-all.h
  89. exec.c
  90. feature_to_c.sh
  91. gdbstub.c
  92. gdbstub.h
  93. gen-icount.h
  94. host-utils.c
  95. host-utils.h
  96. hostregs_helper.h
  97. hpet.h
  98. hppa-dis.c
  99. hppa.ld
  100. hxtool
  101. i386-dis.c
  102. i386.ld
  103. ia64.ld
  104. ioport-user.c
  105. ioport.c
  106. ioport.h
  107. keymaps.c
  108. keymaps.h
  109. kvm-all.c
  110. kvm.h
  111. libfdt_env.h
  112. LICENSE
  113. linux-aio.c
  114. m68k-dis.c
  115. m68k-semi.c
  116. m68k.ld
  117. MAINTAINERS
  118. Makefile
  119. Makefile.hw
  120. Makefile.target
  121. Makefile.user
  122. microblaze-dis.c
  123. migration-exec.c
  124. migration-fd.c
  125. migration-tcp.c
  126. migration-unix.c
  127. migration.c
  128. migration.h
  129. mips-dis.c
  130. mips.ld
  131. module.c
  132. module.h
  133. monitor.c
  134. monitor.h
  135. nbd.c
  136. nbd.h
  137. net-checksum.c
  138. net-queue.c
  139. net-queue.h
  140. net.c
  141. net.h
  142. osdep.c
  143. osdep.h
  144. path.c
  145. pci-ids.txt
  146. posix-aio-compat.c
  147. ppc-dis.c
  148. ppc.ld
  149. ppc64.ld
  150. qdict-test-data.txt
  151. qdict.c
  152. qdict.h
  153. qemu-aio.h
  154. qemu-binfmt-conf.sh
  155. qemu-char.c
  156. qemu-char.h
  157. qemu-common.h
  158. qemu-config.c
  159. qemu-config.h
  160. qemu-doc.texi
  161. qemu-img-cmds.hx
  162. qemu-img.c
  163. qemu-img.texi
  164. qemu-io.c
  165. qemu-lock.h
  166. qemu-log.h
  167. qemu-malloc.c
  168. qemu-monitor.hx
  169. qemu-nbd.c
  170. qemu-nbd.texi
  171. qemu-option.c
  172. qemu-option.h
  173. qemu-options.hx
  174. qemu-queue.h
  175. qemu-sockets.c
  176. qemu-tech.texi
  177. qemu-thread.c
  178. qemu-thread.h
  179. qemu-timer.h
  180. qemu-tool.c
  181. qemu.sasl
  182. qemu_socket.h
  183. qint.c
  184. qint.h
  185. qlist.c
  186. qlist.h
  187. qobject.h
  188. qstring.c
  189. qstring.h
  190. readline.c
  191. readline.h
  192. README
  193. rules.mak
  194. s390-dis.c
  195. s390.ld
  196. savevm.c
  197. sdl.c
  198. sdl_keysym.h
  199. sdl_zoom.c
  200. sdl_zoom.h
  201. sdl_zoom_template.h
  202. sh4-dis.c
  203. softmmu-semi.h
  204. softmmu_defs.h
  205. softmmu_exec.h
  206. softmmu_header.h
  207. softmmu_template.h
  208. sparc-dis.c
  209. sparc.ld
  210. sparc64.ld
  211. sysemu.h
  212. tap-win32.c
  213. targphys.h
  214. tcg-runtime.c
  215. texi2pod.pl
  216. thunk.c
  217. thunk.h
  218. TODO
  219. translate-all.c
  220. uboot_image.h
  221. usb-bsd.c
  222. usb-linux.c
  223. usb-stub.c
  224. VERSION
  225. vgafont.h
  226. vl.c
  227. vnc-auth-sasl.c
  228. vnc-auth-sasl.h
  229. vnc-auth-vencrypt.c
  230. vnc-auth-vencrypt.h
  231. vnc-tls.c
  232. vnc-tls.h
  233. vnc.c
  234. vnc.h
  235. vnc_keysym.h
  236. vnchextile.h
  237. x86_64.ld
  238. x_keymap.c
  239. x_keymap.h