Fixed some bugs with inputs

2026-03-08 22:07:21 +00:00
parent 7a9b82d57c
commit 88716c0b64
10 changed files with 199 additions and 32 deletions
--- a/source/kernel/features/check.asm
+++ b/source/kernel/features/check.asm
@@ -0,0 +1,29 @@
+check_is_number:
+	cmp al, 48
+	jl .not_number
+	cmp al, 57
+	jg .not_number
+	stc
+	ret
+.not_number:
+	clc
+	ret
+
+check_is_letter:
+	cmp al, 65
+	jl .not_letter
+	cmp al, 122
+	jg .not_letter
+	cmp al, 90
+	jg .maybe_not_letter
+	stc
+	ret
+.maybe_not_letter:
+	cmp al, 97
+	jl .not_letter
+	stc
+	ret
+.not_letter:
+	clc
+	ret
+