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boot: fix horizontal wrapping

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This commit is contained in:
K. Lange 2018-12-25 15:20:55 +09:00
parent 80c5f30d7b
commit f2577f4034
1 changed files with 11 additions and 3 deletions
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14
boot/moremultiboot.h
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@ -676,12 +676,20 @@ void show_menu(void) {
sel = (sel_max + sel - 1) % sel_max;
}
} else if (s == 0x4B) { /* LEFT */
if (sel > BASE_SEL + 1) {
sel -= 1;
if (sel > BASE_SEL) {
if ((sel - BASE_SEL) % 2) {
sel = (sel + 1) % sel_max;
} else {
sel -= 1;
}
}
} else if (s == 0x4D) { /* RIGHT */
if (sel > BASE_SEL) {
sel = (sel + 1) % sel_max;
if ((sel - BASE_SEL) % 2) {
sel = (sel + 1) % sel_max;
} else {
sel -= 1;
}
}
} else if (s == 0x1c) {
if (sel <= BASE_SEL) {