Constraint on varnode_symbol (AX)

[jobermayr]

Different INT calls depend on byte after 0xcd, AH and AL (or AX).

-:INT imm8       is vexMode=0 & byte=0xcd; imm8
+:INT "21"       is vexMode=0 & AX=0x3d01 & byte=0xcd; byte=0x21

Compiling ./data/languages/x86-64.slaspec:
ia.sinc:3629: varnode_symbol 'AX' (defined at ia.sinc:21) is wrong type (should be family or operand) in pattern equation

How can I create patterns with a constraint on it?

I also tried to set context

-  reservedHigh=(46,63)  # reserved for future use
+
+  saveAX=(48,63)
+    saveAL=(48,55)
+    saveAH=(56,63)
[...]
:^ is instrPhase=0 & byte=0xcd; byte [ saveAX=AX; ] { }

But it doesn't match INT then.

How can I create patterns with a constraint on a varnode_symbol?

[astrelsky]

Sleigh can be weird sometimes, try is AX & AX=0x3d01

[jobermayr]

Sleigh can be weird sometimes, try is AX & AX=0x3d01

Also wrong type.

[astrelsky]

Oh, yea it's not going to work since AX is a register. Disregard that.