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shell: don't parse empty cmds

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This commit is contained in:
Virgil Dupras 2019-07-13 15:34:43 -04:00
parent 951dd2206d
commit 3861670bcc
1 changed files with 5 additions and 0 deletions
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5
kernel/shell.asm
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@ -89,6 +89,11 @@ shellLoop:
; Parse command (null terminated) at HL and calls it ; Parse command (null terminated) at HL and calls it
shellParse: shellParse:
; first thing: is command empty?
ld a, (hl)
or a
ret z ; empty, nthing to do
push af push af
push bc push bc
push de push de