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GP-33_emteere Updated comment, read Status reg only once

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emteere 2021-01-25 15:21:47 -05:00
parent 734c945f6d
commit d7a1085619
1 changed files with 3 additions and 2 deletions
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5
Ghidra/Processors/MIPS/data/languages/mips32Instructions.sinc
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@ -184,10 +184,11 @@ define pcodeop special2;
Status = Status | 1;
}
# http://people.cs.pitt.edu/~don/coe1502/current/Unit4a/Unit4a.html
# MIPS R3000 only, replaced with ERET >= R4000
# 0100 0010 0000 0000 0000 0000 0001 0000
:rfe is $(AMODE) & prime=0x10 & fct=0x10 & bit25=1 & copfill=0 {
Status = (Status & 0xfffffff0) | ((Status & 0x3c) >> 2);
local currentStatus = Status;
Status = (currentStatus & 0xfffffff0) | ((currentStatus & 0x3c) >> 2);
}
# 0100 0010 0000 0000 0000 0000 0001 1000