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link to day 5

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6
src/uxn_tutorial.gmo
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@ -48,7 +48,11 @@ we also talk about using the program memory as a space for data via "variables",
# day 5
coming soon!
here we introduce the varvara mouse device to explore more possible interactions, and we cover the remaining elements of uxntal and uxn: the return stack, the return mode and the keep mode.
we also discuss possible structures to create loops and more complex programs using these resources!
=> ./uxn_tutorial_day_5.gmi {uxn tutorial day 5}
# external resources

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src/uxn_tutorial_day_4.gmo
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@ -908,17 +908,15 @@ the addresses for LDA and STA are always shorts, while the addresses for the oth
in short mode, these instructions load or store shorts from or into memory.
# coming soon: day 5
# day 5
in the next section of the {uxn tutorial} we'll discuss how to create more subroutines in uxntal to have more organized and modular programs.
in {uxn tutorial day 5} here we introduce the varvara mouse device to explore more possible interactions, and we cover the remaining elements of uxntal and uxn: the return stack, the return mode and the keep mode.
this will lead us to talk about the return stack, and the return mode in uxn instructions: we'll finally cover them all!
we also discuss possible structures to create loops and more complex programs using these resources!
we will also talk about repetitive structures (i.e. loops), and we'll discuss the varvara mouse device to explore other types of interactions!
first, i invite you to take a break!
meanwhile, i invite you to keep exploring, to share your findings, and to also take a break!
stay tuned!
then, keep exploring, and share your findings!
# support

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src/uxn_tutorial_day_5.gmo
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@ -1,6 +1,6 @@
# uxn tutorial: day 5, the mouse and uxntal goodies
this is the fifth section of the <(uxn tutorial)>! here we introduce the varvara mouse device to explore more possible interactions, and we cover the remaining elements of uxntal and uxn: the return stack, the return mode and the keep mode.
this is the fifth section of the {uxn tutorial}! here we introduce the varvara mouse device to explore more possible interactions, and we cover the remaining elements of uxntal and uxn: the return stack, the return mode and the keep mode.
we also discuss possible structures to create loops and more complex programs using these resources!
@ -176,7 +176,7 @@ BRK
@pointer_icn [ 80c0 e0f0 f8e0 1000 ]
```
note that it draws the pointer in the foreground, and that it uses 'a' in the low nibble of the sprite byte: this implies that it will use color 2 to draw the pointer shape, and will draw with transparency the rest of the tile. (see drawing 1bpp sprites in <(uxn tutorial day 2)> )
note that it draws the pointer in the foreground, and that it uses 'a' in the low nibble of the sprite byte: this implies that it will use color 2 to draw the pointer shape, and will draw with transparency the rest of the tile. (see drawing 1bpp sprites in {uxn tutorial day 2} )
this blending mode would allow you to draw things in the background and have the pointer cover them with its shape only, and not with the whole square tile.
@ -559,7 +559,7 @@ it might be hard to think in general of a use for this, but "keep" it in mind!
### modulo
actually, if you remember, on <(uxn tutorial day 4)> i shared with you a couple of macros to perform a modulo operation:
actually, if you remember, on {uxn tutorial day 4} i shared with you a couple of macros to perform a modulo operation:
```
%MOD { DUP2 DIV MUL SUB } ( a b -- a%b )
@ -711,7 +711,7 @@ these are the uxntal instructions that we discussed today! with these, we have c
# coming soon: day 6
the following days of the <(uxn tutorial)> will consist in discussing all the remaining devices in the varvara computer.
the following days of the {uxn tutorial} will consist in discussing all the remaining devices in the varvara computer.
meanwhile, i invite you to keep exploring, to share your findings, and to also take a break!
@ -719,4 +719,4 @@ stay tuned!
# support
if you found this tutorial to be helpful, consider sharing it and giving it your <(support)> :)
if you found this tutorial to be helpful, consider sharing it and giving it your {support} :)