Maths/rounding error?
I wonder if this is a maths/rounding error?

code (called with integer values)

``` lua
function draw_card(s,x,y)
  spr(s, x,y, 2,2) -- main sprite
  line(x+1,y-1, x+14,y-1) -- top edge
  line(x+1,y+16, x+14,y+16) -- btm edge
end
```

Interesting that only one of the two lines is drawn in the wrong place? Both coordinates are 1px out vertically.

Also, badly mapped/missing = (equals) sign in font?

compare
![picoLove screenshot](https://cloud.githubusercontent.com/assets/49612/9771852/9ff4ff0c-5730-11e5-9643-b5c487a2e781.png)
VS

![pico-8 screenshot](https://cloud.githubusercontent.com/assets/49612/9771853/a014ac76-5730-11e5-9584-f1ca44a81edd.png)
