53 lines
1.2 KiB
Awk
53 lines
1.2 KiB
Awk
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# This script generates the PS3 hypervisor call stubs from an HV
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# interface definition file. The PS3 HV calling convention is very
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# similar to the PAPR one, except that the function token is passed in
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# r11 instead of r3.
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#
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# Invoke like so: awk -f ps3-hv-asm.awk < ps3-hvcall.master > ps3-hvcall.S
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#
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# $FreeBSD$
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BEGIN {
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printf("#include <machine/asm.h>\n\n");
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printf("#define hc .long 0x44000022\n\n");
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}
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/HVCALL.*/ {
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code = $2;
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ins = split($4, a, ",")
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outs = split($5, a, ",")
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printf("ASENTRY(%s)\n",$3);
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printf("\tmflr %%r0\n");
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printf("\tstd %%r0,16(%%r1)\n");
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printf("\tstdu %%r1,-%d(%%r1)\n", 48+8*outs);
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if ($4 == "UNUSED")
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ins = 0
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# Save output reg addresses to the stack
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for (i = 0; i < outs; i++) {
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if (ins+i >= 8) {
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printf("\tld %%r11,%d(%%r1)\n", 48+8*outs + 48 + 8*(i+ins));
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printf("\tstd %%r11,%d(%%r1)\n", 48+8*i);
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} else {
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printf("\tstd %%r%d,%d(%%r1)\n", 3+ins+i, 48+8*i);
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}
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}
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printf("\tli %%r11,%d\n", code);
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printf("\thc\n");
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printf("\textsw %%r3,%%r3\n");
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for (i = 0; i < outs; i++) {
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printf("\tld %%r11,%d(%%r1)\n", 48+8*i);
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printf("\tstd %%r%d,0(%%r11)\n", 4+i);
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}
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printf("\tld %%r1,0(%%r1)\n");
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printf("\tld %%r0,16(%%r1)\n");
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printf("\tmtlr %%r0\n");
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printf("\tblr\n\n");
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}
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