target-mips: add unions to access DSP elements

Instead of playing with bit shifting, add two unions (one for 32-bit
values, one for 64-bit ones) to access all the DSP elements with the
correct type.

This make the code easier to read and less error prone, and allow GCC
to vectorize the code in some cases.

Reviewed-by: Eric Johnson <ericj@mips.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
1 file changed
tree: 5e36f1dc2590876c2b688dce7a18c15ea1b6ce90
  1. audio/
  2. backends/
  3. block/
  4. bsd-user/
  5. default-configs/
  6. disas/
  7. docs/
  8. fpu/
  9. fsdev/
  10. gdb-xml/
  11. hw/
  12. include/
  13. ldscripts/
  14. libcacard/
  15. linux-headers/
  16. linux-user/
  17. net/
  18. pc-bios/
  19. qapi/
  20. qga/
  21. QMP/
  22. qobject/
  23. qom/
  24. roms/
  25. scripts/
  26. slirp/
  27. stubs/
  28. sysconfigs/
  29. target-alpha/
  30. target-arm/
  31. target-cris/
  32. target-i386/
  33. target-lm32/
  34. target-m68k/
  35. target-microblaze/
  36. target-mips/
  37. target-openrisc/
  38. target-ppc/
  39. target-s390x/
  40. target-sh4/
  41. target-sparc/
  42. target-unicore32/
  43. target-xtensa/
  44. tcg/
  45. tests/
  46. trace/
  47. ui/
  48. util/
  49. .exrc
  50. .gitignore
  51. .gitmodules
  52. .mailmap
  53. aio-posix.c
  54. aio-win32.c
  55. arch_init.c
  56. async.c
  57. balloon.c
  58. block-migration.c
  59. block.c
  60. blockdev-nbd.c
  61. blockdev.c
  62. blockjob.c
  63. bt-host.c
  64. bt-vhci.c
  65. Changelog
  66. cmd.c
  67. cmd.h
  68. CODING_STYLE
  69. configure
  70. COPYING
  71. COPYING.LIB
  72. coroutine-gthread.c
  73. coroutine-sigaltstack.c
  74. coroutine-ucontext.c
  75. coroutine-win32.c
  76. cpu-exec.c
  77. cpus.c
  78. cputlb.c
  79. device_tree.c
  80. disas.c
  81. dma-helpers.c
  82. dump-stub.c
  83. dump.c
  84. exec.c
  85. gdbstub.c
  86. HACKING
  87. hmp-commands.hx
  88. hmp.c
  89. hmp.h
  90. iohandler.c
  91. ioport.c
  92. kvm-all.c
  93. kvm-stub.c
  94. LICENSE
  95. main-loop.c
  96. MAINTAINERS
  97. Makefile
  98. Makefile.objs
  99. Makefile.target
  100. memory.c
  101. memory_mapping-stub.c
  102. memory_mapping.c
  103. migration-exec.c
  104. migration-fd.c
  105. migration-tcp.c
  106. migration-unix.c
  107. migration.c
  108. monitor.c
  109. nbd.c
  110. os-posix.c
  111. os-win32.c
  112. page_cache.c
  113. qapi-schema-test.json
  114. qapi-schema.json
  115. qdict-test-data.txt
  116. qemu-bridge-helper.c
  117. qemu-char.c
  118. qemu-coroutine-io.c
  119. qemu-coroutine-lock.c
  120. qemu-coroutine-sleep.c
  121. qemu-coroutine.c
  122. qemu-doc.texi
  123. qemu-img-cmds.hx
  124. qemu-img.c
  125. qemu-img.texi
  126. qemu-io.c
  127. qemu-log.c
  128. qemu-nbd.c
  129. qemu-nbd.texi
  130. qemu-options-wrapper.h
  131. qemu-options.h
  132. qemu-options.hx
  133. qemu-seccomp.c
  134. qemu-tech.texi
  135. qemu-timer.c
  136. qemu.sasl
  137. qmp-commands.hx
  138. qmp.c
  139. qtest.c
  140. readline.c
  141. README
  142. rules.mak
  143. savevm.c
  144. spice-qemu-char.c
  145. tcg-runtime.c
  146. tci.c
  147. thread-pool.c
  148. thunk.c
  149. TODO
  150. trace-events
  151. translate-all.c
  152. translate-all.h
  153. user-exec.c
  154. VERSION
  155. version.rc
  156. vl.c
  157. xen-all.c
  158. xen-mapcache.c
  159. xen-stub.c