Postfix calculator, written in Tal

Added archive command

Fixed cursor issue

Fixed issue with clear tile

- read-only
- https://git.sr.ht/~rabbits/cccc
- read/write
- git@git.sr.ht:~rabbits/cccc

A postfix calculator with fractions, written in Uxntal.

You must have an Uxntal assembler.

```
uxnasm src/cccc.tal bin/cccc.rom
```

If do not wish to assemble it yourself, you can download cccc.rom.

You must have a Varvara emulator.

```
uxnemu bin/cccc.rom
uxncli bin/cccc.rom
```

`0-f`

numbers`+-/*`

arithmetic`&|<>`

bitwise`.`

print stack`~`

clear stack`!`

pop stack`"`

duplicate`%`

swap`#`

hexadecimal(base-16)`$`

decimal(base-10)

- The
**Numerator**is the top of part of a fraction. - The
**Denominator**is the bottom of part of a fraction. - A
**Proper Fraction**has a numerator that is smaller than its denominator and represents a quantity less than the whole. - An
**Improper Fraction**has a numerator larger than its denominator and represents a quantity greater than the whole. **Mixed Numbers**are whole numbers and portions less than 1 added together, like`2 3/4`

.**Like Fractions**are fractions with the same denominators.**Unlike Fractions**are fractions with different denominators.- A
**Reciprocal**is the inverted value of a fraction, like`12/34`

is the reciprocal of`34/12`

.

`clr`

Button`mode`

Button`inv`

Invert numerator and denominator`vid`

Convert fraction to two whole numbers