2
print "\t.type _start,@","function\n";
5
print "// Fixed and stacked integer registers.\n";
6
for ($i = 1; $i < 128; ++$i) {
7
print "\t{ .mii; mov r$i = r0; nop.i 0; nop.i 0;; }\n";
11
print "// Alternate names for input registers\n";
12
print "\t.regstk 96, 0, 0, 0\n";
13
for ($i = 0; $i < 96; ++$i) {
14
print "\t{ .mii; mov in$i = r0; nop.i 0; nop.i 0;; }\n";
18
print "// Alternate names for output registers\n";
19
print "\t.regstk 0, 0, 96, 0\n";
20
for ($i = 0; $i < 96; ++$i) {
21
print "\t{ .mii; mov out$i = r0; nop.i 0; nop.i 0;; }\n";
25
print "// Alternate names for local registers\n";
26
print "\t.regstk 0, 96, 0, 0\n";
27
for ($i = 0; $i < 96; ++$i) {
28
print "\t{ .mii; mov loc$i = r0; nop.i 0; nop.i 0;; }\n";
32
print "// Return value registers\n";
33
for ($i = 0; $i < 4; ++$i) {
34
print "\t{ .mii; mov ret$i = r0; nop.i 0; nop.i 0;; }\n";
39
print "\tmov gp = r0\n";
40
print "\tmov sp = r0\n";
41
print "\tmov tp = r0;; }\n\n";
43
print "// Floating point registers\n";
44
for ($i = 2; $i < 128; ++$i) {
45
print "\t{ .mfi; mov f$i = f0 ;; }\n";
49
print "// Floating point argument registers\n";
50
for ($i = 0; $i < 8; ++$i) {
51
print "\t{ .mfi; mov farg$i = f1 ;; }\n";
55
print "// Floating point return value registers\n";
56
for ($i = 0; $i < 8; ++$i) {
57
print "\t{ .mfi; mov fret$i = f1 ;; }\n";
61
print "// Predicate registers\n";
62
for ($i = 0; $i < 64; ++$i) {
63
print "\t{ .mii; (p$i)\tmov r", $i+1, " = r0; nop.i 0; nop.i 0;; }\n";
67
print "// Predicates as a unit\n";
68
print "\t{ .mmi; nop.m 0; mov r1 = pr ;; }\n";
69
print "//\tmov r2 = pr.rot\n";
72
print "// Branch registers.\n";
73
for ($i = 0; $i < 8; ++$i) {
74
print "\t{ .mmi; mov b$i = r0;; }\n";
78
print "\t{ .mmi; mov rp = r0;; }\n";
81
print "// Application registers\n";
82
@reserved = ( 8..15, 20, 22..23, 31, 33..35, 37..39, 41..47, 67..111 );
84
foreach $i (@reserved) {
87
for ($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};
95
print "// Application registers by name\n";
96
for ($i = 0; $i < 8; ++$i) {
97
print "\t{ .mmi; nop.m 0; mov r1 = ar.k$i ;;}\n";
100
@regs = ( "rsc", "bsp", "bspstore", "rnat", "ccv", "unat", "fpsr", "itc",
103
print "\t{ .mmi; nop.m 0; mov r1 = ar.$i ;; }\n";
107
print "// Control registers\n";
108
@reserved = ( 3..7, 10..15, 18, 26..63, 75..79, 82..127 );
110
foreach $i (@reserved) {
113
for ($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};
121
print "// 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"
129
print "\t{ .mfb; mov r1 = cr.$i ;; }\n";
134
print "// Other registers\n";
135
print "\t{ .mfb; mov r1 = psr ;; }\n";
136
print "//\t{ .mfb; mov r1 = psr.l ;; }\n";
137
print "\t{ .mfb; mov r1 = psr.um ;; }\n";
138
print "\t{ .mmi; mov r1 = ip ;; }\n";
141
print "// 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";
147
print "\tmov r1 = ${i}[r3]\n";
148
print "\tmov r2 = ${i}[r4]\n";
149
print "\tnop.i 0;; }\n";