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This commit is contained in:
Kartik Agaram 2021-02-07 22:42:33 -08:00
parent 899759edef
commit 0be63b75c2
1 changed files with 6 additions and 4 deletions
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10
baremetal/501draw-text.mu
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@ -17,11 +17,12 @@ fn cursor-right screen: (addr screen) {
var _width/eax: int <- copy 0 var _width/eax: int <- copy 0
var dummy/ecx: int <- copy 0 var dummy/ecx: int <- copy 0
_width, dummy <- screen-size screen _width, dummy <- screen-size screen
var width/edx: int <- copy _width var limit/edx: int <- copy _width
limit <- decrement
var cursor-x/eax: int <- copy 0 var cursor-x/eax: int <- copy 0
var cursor-y/ecx: int <- copy 0 var cursor-y/ecx: int <- copy 0
cursor-x, cursor-y <- cursor-position screen cursor-x, cursor-y <- cursor-position screen
compare cursor-x, width compare cursor-x, limit
{ {
break-if-< break-if-<
return return
@ -47,11 +48,12 @@ fn cursor-down screen: (addr screen) {
var dummy/eax: int <- copy 0 var dummy/eax: int <- copy 0
var _height/ecx: int <- copy 0 var _height/ecx: int <- copy 0
dummy, _height <- screen-size screen dummy, _height <- screen-size screen
var height/edx: int <- copy _height var limit/edx: int <- copy _height
limit <- decrement
var cursor-x/eax: int <- copy 0 var cursor-x/eax: int <- copy 0
var cursor-y/ecx: int <- copy 0 var cursor-y/ecx: int <- copy 0
cursor-x, cursor-y <- cursor-position screen cursor-x, cursor-y <- cursor-position screen
compare cursor-y, height compare cursor-y, limit
{ {
break-if-< break-if-<
return return