bitfields.isa revision 2239
15086Sgblack@eecs.umich.edu// -*- mode:c++ -*- 25086Sgblack@eecs.umich.edu 38466Snilay@cs.wisc.edu//////////////////////////////////////////////////////////////////// 45086Sgblack@eecs.umich.edu// 55086Sgblack@eecs.umich.edu// Bitfield definitions. 67087Snate@binkert.org// 77087Snate@binkert.org 87087Snate@binkert.orgdef bitfield OPCODE <31:26>; 97087Snate@binkert.orgdef bitfield OPCODE_HI <31:29>; 107087Snate@binkert.orgdef bitfield OPCODE_LO <28:26>; 117087Snate@binkert.org 127087Snate@binkert.orgdef bitfield REGIMM <20:16>; 137087Snate@binkert.orgdef bitfield REGIMM_HI <20:19>; 145086Sgblack@eecs.umich.edudef bitfield REGIMM_LO <18:16>; 157087Snate@binkert.org 167087Snate@binkert.orgdef bitfield FUNCTION < 5: 0>; 177087Snate@binkert.orgdef bitfield FUNCTION_HI < 5: 3>; 187087Snate@binkert.orgdef bitfield FUNCTION_LO < 2: 0>; 197087Snate@binkert.org 207087Snate@binkert.org// Integer operate format 217087Snate@binkert.orgdef bitfield RT <20:16>; 227087Snate@binkert.orgdef bitfield RT_HI <20:19>; 235086Sgblack@eecs.umich.edudef bitfield RT_LO <18:16>; 247087Snate@binkert.org 255086Sgblack@eecs.umich.edudef bitfield RS <25:21>; 265086Sgblack@eecs.umich.edudef bitfield RS_MSB <25:25>; 275086Sgblack@eecs.umich.edudef bitfield RS_HI <25:24>; 285086Sgblack@eecs.umich.edudef bitfield RS_LO <23:21>; 295086Sgblack@eecs.umich.edu 305086Sgblack@eecs.umich.edudef bitfield RD <15:11>; 315086Sgblack@eecs.umich.edu 325086Sgblack@eecs.umich.edudef bitfield INTIMM <15: 0>; // integer immediate (literal) 335086Sgblack@eecs.umich.edu 345086Sgblack@eecs.umich.edu// Floating-point operate format 355086Sgblack@eecs.umich.edudef bitfield FMT <25:21>; 365086Sgblack@eecs.umich.edudef bitfield FR <25:21>; 375086Sgblack@eecs.umich.edudef bitfield FT <20:16>; 385086Sgblack@eecs.umich.edudef bitfield FS <15:11>; 395086Sgblack@eecs.umich.edudef bitfield FD <10:6>; 405086Sgblack@eecs.umich.edu 4111793Sbrandon.potter@amd.comdef bitfield CC <20:18>; 4211793Sbrandon.potter@amd.comdef bitfield ND <17:17>; 435647Sgblack@eecs.umich.edudef bitfield TF <16:16>; 448466Snilay@cs.wisc.edudef bitfield MOVCI <16:16>; 455135Sgblack@eecs.umich.edudef bitfield MOVCF <16:16>; 465647Sgblack@eecs.umich.edudef bitfield SRL <21:21>; 479889Sandreas@sandberg.pp.sedef bitfield SRLV < 6: 6>; 4811800Sbrandon.potter@amd.comdef bitfield SA <10: 6>; 495086Sgblack@eecs.umich.edu 505086Sgblack@eecs.umich.edu// CP0 Register Select 515086Sgblack@eecs.umich.edudef bitfield SEL < 2: 0>; 527707Sgblack@eecs.umich.edu 537707Sgblack@eecs.umich.edu// Interrupts 547707Sgblack@eecs.umich.edudef bitfield SC < 5: 5>; 5510553Salexandru.dutu@amd.com 569887Sandreas@sandberg.pp.se// Branch format 579887Sandreas@sandberg.pp.sedef bitfield OFFSET <15: 0>; // displacement 589887Sandreas@sandberg.pp.se 599887Sandreas@sandberg.pp.se// Jmp format 609887Sandreas@sandberg.pp.sedef bitfield JMPTARG <25: 0>; 619887Sandreas@sandberg.pp.sedef bitfield HINT <10: 6>; 629887Sandreas@sandberg.pp.se 639887Sandreas@sandberg.pp.sedef bitfield SYSCALLCODE <25: 6>; 649887Sandreas@sandberg.pp.sedef bitfield TRAPCODE <15:13>; 659887Sandreas@sandberg.pp.se 669887Sandreas@sandberg.pp.se// M5 instructions 679887Sandreas@sandberg.pp.sedef bitfield M5FUNC <7:0>; 689887Sandreas@sandberg.pp.se