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Fix BIT instruction description.

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Flag handling for the BIT instruction did not follow the datasheet.

This fixes #2558.
This commit is contained in:
Alessandro Gatti 2021-06-02 15:56:32 +02:00
parent 68a9c0a5a3
commit d588033a56
1 changed files with 3 additions and 1 deletions
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Ghidra/Processors/6502/data/languages/6502.slaspec
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@ -168,8 +168,10 @@ ADDRI: imm16 is imm16 { tmp:2 = imm16; export *:2 tmp; }
:BIT OP2 is (op=0x24 | op=0x2C) ... & OP2
{
N = (OP2 & 0x80) == 0x80;
V = (OP2 & 0x40) == 0x40;
local value = A & OP2;
resultFlags(value);
Z = (value == 0);
}
:BMI REL is op=0x30; REL