1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
# This script generates the PS3 hypervisor call stubs from an HV
# interface definition file. The PS3 HV calling convention is very
# similar to the PAPR one, except that the function token is passed in
# r11 instead of r3.
#
# Invoke like so: awk -f ps3-hv-asm.awk < ps3-hvcall.master > ps3-hvcall.S
#
# $FreeBSD$
BEGIN {
printf("#include <machine/asm.h>\n\n");
printf("#define hc .long 0x44000022\n\n");
}
/HVCALL.*/ {
code = $2;
ins = split($4, a, ",")
outs = split($5, a, ",")
printf("ASENTRY(%s)\n",$3);
printf("\tmflr %%r0\n");
printf("\tstd %%r0,16(%%r1)\n");
printf("\tstdu %%r1,-%d(%%r1)\n", 48+8*outs);
if ($4 == "UNUSED")
ins = 0
# Save output reg addresses to the stack
for (i = 0; i < outs; i++) {
if (ins+i >= 8) {
printf("\tld %%r11,%d(%%r1)\n", 48+8*outs + 48 + 8*(i+ins));
printf("\tstd %%r11,%d(%%r1)\n", 48+8*i);
} else {
printf("\tstd %%r%d,%d(%%r1)\n", 3+ins+i, 48+8*i);
}
}
printf("\tli %%r11,%d\n", code);
printf("\thc\n");
printf("\textsw %%r3,%%r3\n");
for (i = 0; i < outs; i++) {
printf("\tld %%r11,%d(%%r1)\n", 48+8*i);
printf("\tstd %%r%d,0(%%r11)\n", 4+i);
}
printf("\tld %%r1,0(%%r1)\n");
printf("\tld %%r0,16(%%r1)\n");
printf("\tmtlr %%r0\n");
printf("\tblr\n\n");
}
|
