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GT-3159: PowerPC: corrected e_rlwimi and e_rlwinm VLE bit patterns.

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Corrected wrteei bit pattern.
This commit is contained in:
ghidorahrex
2019-09-17 12:03:46 -04:00
parent 1d949be79d
commit 77665a8945
2 changed files with 14 additions and 14 deletions
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4
Ghidra/Processors/PowerPC/data/languages/ppc_embedded.sinc
View File

@@ -211,7 +211,7 @@
}
#wrteei 0 0x7c 00 01 46
:wrteei BIT_16 is OP=31 & BIT_16 & XOP_1_10=163
:wrteei BIT_15 is OP=31 & BIT_15 & XOP_1_10=163
{
WriteExternalEnableImmediate(BIT_16:1);
WriteExternalEnableImmediate(BIT_15:1);
}

24
Ghidra/Processors/PowerPC/data/languages/ppc_vle.sinc
View File

@@ -800,37 +800,37 @@ IMM16B: val is IMM_0_10_VLE & IMM_16_20_VLE [ val = (IMM_16_20_VLE << 11) |
}
# The manual uses MB instead of NB here, but because the "MB" symbol is already taken, NB it is
:e_rlwimi A,S,SHL,NB,ME is $(ISVLE) & OP=29 & BIT_0=0 & NB & ME & A & SHL & S {
:e_rlwimi A,S,SHL,MBL,ME is $(ISVLE) & OP=29 & BIT_0=0 & MBL & ME & A & SHL & S {
tmpS:4 = S:4;
tmpA:4 = (tmpS << SHL) | (tmpS >> (32 - SHL));
tmpM:4 = ~0:4;
if (ME:1 < NB:1) goto <invert>;
tmpM = tmpM << NB;
tmpM = tmpM >> ((31-ME) + NB);
if (ME:1 < MBL:1) goto <invert>;
tmpM = tmpM << MBL;
tmpM = tmpM >> ((31-ME) + MBL);
tmpM = tmpM << (31-ME);
goto <finish>;
<invert>
tmpM = tmpM << ME;
tmpM = tmpM >> ((31-NB) + ME);
tmpM = tmpM << (31-NB);
tmpM = tmpM >> ((31-MBL) + ME);
tmpM = tmpM << (31-MBL);
tmpM = ~tmpM;
<finish>
A = zext(tmpA & tmpM) | (A & zext(~tmpM));
}
:e_rlwinm A,S,SHL,NB,ME is $(ISVLE) & OP=29 & BIT_0=1 & NB & ME & A & SHL & S {
:e_rlwinm A,S,SHL,MBL,ME is $(ISVLE) & OP=29 & BIT_0=1 & MBL & ME & A & SHL & S {
tmpS:4 = S:4;
tmpA:4 = (tmpS << SHL) | (tmpS >> (32 - SHL));
tmpM:4 = ~0:4;
if (ME:1 < NB:1) goto <invert>;
tmpM = tmpM << NB;
tmpM = tmpM >> ((31-ME) + NB);
if (ME:1 < MBL:1) goto <invert>;
tmpM = tmpM << MBL;
tmpM = tmpM >> ((31-ME) + MBL);
tmpM = tmpM << (31-ME);
goto <finish>;
<invert>
tmpM = tmpM << ME;
tmpM = tmpM >> ((31-NB) + ME);
tmpM = tmpM << (31-NB);
tmpM = tmpM >> ((31-MBL) + ME);
tmpM = tmpM << (31-MBL);
tmpM = ~tmpM;
<finish>
A = zext(tmpA & tmpM);