1print ".text\n"; 2print "\t.type _start,@","function\n"; 3print "_start:\n\n"; 4 5print "// Fixed and stacked integer registers.\n"; 6for ($i = 1; $i < 128; ++$i) { 7 print "\t{ .mii; mov r$i = r0; nop.i 0; nop.i 0;; }\n"; 8} 9print "\n"; 10 11print "// Alternate names for input registers\n"; 12print "\t.regstk 96, 0, 0, 0\n"; 13for ($i = 0; $i < 96; ++$i) { 14 print "\t{ .mii; mov in$i = r0; nop.i 0; nop.i 0;; }\n"; 15} 16print "\n"; 17 18print "// Alternate names for output registers\n"; 19print "\t.regstk 0, 0, 96, 0\n"; 20for ($i = 0; $i < 96; ++$i) { 21 print "\t{ .mii; mov out$i = r0; nop.i 0; nop.i 0;; }\n"; 22} 23print "\n"; 24 25print "// Alternate names for local registers\n"; 26print "\t.regstk 0, 96, 0, 0\n"; 27for ($i = 0; $i < 96; ++$i) { 28 print "\t{ .mii; mov loc$i = r0; nop.i 0; nop.i 0;; }\n"; 29} 30print "\n"; 31 32print "// Return value registers\n"; 33for ($i = 0; $i < 4; ++$i) { 34 print "\t{ .mii; mov ret$i = r0; nop.i 0; nop.i 0;; }\n"; 35} 36print "\n"; 37 38print "\t{ .mii;\n"; 39print "\tmov gp = r0\n"; 40print "\tmov sp = r0\n"; 41print "\tmov tp = r0;; }\n\n"; 42 43print "// Floating point registers\n"; 44for ($i = 2; $i < 128; ++$i) { 45 print "\t{ .mfi; mov f$i = f0 ;; }\n"; 46} 47print "\n"; 48 49print "// Floating point argument registers\n"; 50for ($i = 0; $i < 8; ++$i) { 51 print "\t{ .mfi; mov farg$i = f1 ;; }\n"; 52} 53print "\n"; 54 55print "// Floating point return value registers\n"; 56for ($i = 0; $i < 8; ++$i) { 57 print "\t{ .mfi; mov fret$i = f1 ;; }\n"; 58} 59print "\n"; 60 61print "// Predicate registers\n"; 62for ($i = 0; $i < 64; ++$i) { 63 print "\t{ .mii; (p$i)\tmov r", $i+1, " = r0; nop.i 0; nop.i 0;; }\n"; 64} 65print "\n"; 66 67print "// Predicates as a unit\n"; 68print "\t{ .mmi; nop.m 0; mov r1 = pr ;; }\n"; 69print "//\tmov r2 = pr.rot\n"; 70print "\n"; 71 72print "// Branch registers.\n"; 73for ($i = 0; $i < 8; ++$i) { 74 print "\t{ .mmi; mov b$i = r0;; }\n"; 75} 76print "\n"; 77 78print "\t{ .mmi; mov rp = r0;; }\n"; 79print "\n"; 80 81print "// Application registers\n"; 82@reserved = ( 8..15, 20, 22..23, 31, 33..35, 37..39, 41..47, 67..111 ); 83%reserved = (); 84foreach $i (@reserved) { 85 $reserved{$i} = 1; 86} 87for ($i = 0; $i < 128; ++$i) { 88 print "//" if $reserved{$i}; 89 print "\t{ .mmi; nop.m 0; mov r1 = ar$i ;; }"; 90 print "\t\t// reserved" if $reserved{$i}; 91 print "\n"; 92} 93print "\n"; 94 95print "// Application registers by name\n"; 96for ($i = 0; $i < 8; ++$i) { 97 print "\t{ .mmi; nop.m 0; mov r1 = ar.k$i ;;}\n"; 98} 99 100@regs = ( "rsc", "bsp", "bspstore", "rnat", "ccv", "unat", "fpsr", "itc", 101 "pfs", "lc", "ec" ); 102foreach $i (@regs) { 103 print "\t{ .mmi; nop.m 0; mov r1 = ar.$i ;; }\n"; 104} 105print "\n"; 106 107print "// Control registers\n"; 108@reserved = ( 3..7, 10..15, 18, 26..63, 75..79, 82..127 ); 109%reserved = (); 110foreach $i (@reserved) { 111 $reserved{$i} = 1; 112} 113for ($i = 0; $i < 128; ++$i) { 114 print "//" if $reserved{$i}; 115 print "\t{ .mfb; mov r1 = cr$i ;; }"; 116 print "\t\t// reserved" if $reserved{$i}; 117 print "\n"; 118} 119print "\n"; 120 121print "// Control registers by name\n"; 122@regs = ( "dcr", "itm", "iva", "pta", "ipsr", "isr", "iip", 123 "iipa", "ifs", "iim", "iha", "lid", "ivr", 124 "tpr", "eoi", "irr0", "irr1", "irr2", "irr3", "itv", "pmv", 125 "lrr0", "lrr1", "cmcv" ); 126# ias doesn't accept these, despite documentation to the contrary. 127# push @regs, "ida", "idtr", "iitr" 128foreach $i (@regs) { 129 print "\t{ .mfb; mov r1 = cr.$i ;; }\n"; 130} 131print "\n"; 132 133 134print "// Other registers\n"; 135print "\t{ .mfb; mov r1 = psr ;; }\n"; 136print "//\t{ .mfb; mov r1 = psr.l ;; }\n"; 137print "\t{ .mfb; mov r1 = psr.um ;; }\n"; 138print "\t{ .mmi; mov r1 = ip ;; }\n"; 139print "\n"; 140 141print "// Indirect register files\n"; 142@regs = ("pmc", "pmd", "pkr", "rr", "ibr", "dbr", "CPUID", "cpuid"); 143# ias doesn't accept these, despite documentation to the contrary. 144# push @regs, "itr", "dtr"; 145foreach $i (@regs) { 146 print "\t{ .mmi\n"; 147 print "\tmov r1 = ${i}[r3]\n"; 148 print "\tmov r2 = ${i}[r4]\n"; 149 print "\tnop.i 0;; }\n"; 150} 151