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mu
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open question: animations in the fake screen 

Right now we just render the state of the screen at the end of an evaluation.
This commit is contained in:
Kartik K. Agaram 2021-04-15 23:20:00 -07:00
parent 6aedf5dc59
commit cec0d9553b
1 changed files with 38 additions and 0 deletions
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38
shell/global.mu
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@ -30,6 +30,7 @@ fn initialize-globals _self: (addr global-table) {
append-primitive self, "cons"
# for screens
append-primitive self, "print"
append-primitive self, "clear"
append-primitive self, "lines"
append-primitive self, "columns"
append-primitive self, "up"
@ -472,6 +473,13 @@ fn apply-primitive _f: (addr cell), args-ah: (addr handle cell), out: (addr hand
apply-print args-ah, out, trace
return
}
{
var is-clear?/eax: boolean <- string-equal? f-name, "clear"
compare is-clear?, 0/false
break-if-=
apply-clear args-ah, out, trace
return
}
{
var is-lines?/eax: boolean <- string-equal? f-name, "lines"
compare is-lines?, 0/false
@ -1126,6 +1134,36 @@ fn apply-print _args-ah: (addr handle cell), out: (addr handle cell), trace: (ad
copy-object second-ah, out
}
fn apply-clear _args-ah: (addr handle cell), out: (addr handle cell), trace: (addr trace) {
trace-text trace, "eval", "apply clear"
var args-ah/eax: (addr handle cell) <- copy _args-ah
var _args/eax: (addr cell) <- lookup *args-ah
var args/esi: (addr cell) <- copy _args
# TODO: check that args is a pair
var empty-args?/eax: boolean <- nil? args
compare empty-args?, 0/false
{
break-if-=
error trace, "'clear' needs 1 arg but got 0"
return
}
# screen = args->left
var first-ah/eax: (addr handle cell) <- get args, left
var first/eax: (addr cell) <- lookup *first-ah
var first-type/ecx: (addr int) <- get first, type
compare *first-type, 5/screen
{
break-if-=
error trace, "first arg for 'clear' is not a screen"
return
}
var screen-ah/eax: (addr handle screen) <- get first, screen-data
var _screen/eax: (addr screen) <- lookup *screen-ah
var screen/ecx: (addr screen) <- copy _screen
#
clear-screen screen
}
fn apply-up _args-ah: (addr handle cell), out: (addr handle cell), trace: (addr trace) {
trace-text trace, "eval", "apply up"
var args-ah/eax: (addr handle cell) <- copy _args-ah