(11C) 100 virtual registers

[Michael Zinn]

Get 100 virtual registers instead of just 20!

These are STO and RCL commands to store a number between 0 and 99 in a virtual register numbered 0 to 99. I recommend using labels D and E because they are in the same columns as STO and RCL.

vRCL x
Recall a number from virtual register X. Notice how this affects the stack:

Before:
T: ?
Z: z
Y: y
X: Register number (0-99)

After:
T: z
Z: z
Y: y
X: Register content


y vSTO x
Stores Y in virtual register X. Unlike regular STO, this removes the value from the stack so if you need it again you'll have to vRCL it. This also destroys T:

Before:
T: ?
Z: z
Y: Data (0-99)
X: Register (0-99)

After:
T: Garbage
Z: z
Y: z
X: z


Only tested on the Android 11i simulator, but it should work on real devices (please comment if it doesn't):

Code:

LBL D
5
/
STO I
FRAC
10
*
10^x
RCL (i)
x><y
/
FRAC
+
2
10^x
/
GSB 0
RCL (i)
x><y
/
INT
+
GSB 0
*
STO (i)
R\/
RTN

LBL 0
RCL I
FRAC
10
*
2
+
10^x
RTN

LBL E
5
/
STO I
FRAC
10
*
2
+
10^x
RCL (i)
x><y
/
FRAC
2
10^x
*
INT
RTN