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