\ud83d\udc49\ufe0f \ud568\uc218\ub85c \ubb38\uc790\uc5f4 \uc804\uccb4\ub97c \ud654\uba74\uc5d0 \ucd9c\ub825\ud558\ub294 \ucf54\ub4dc\uc785\ub2c8\ub2e4. This is code that outputs the entire string to the screen using a function.<\/p>\n\n\n\n
\ud83d\udc49\ufe0f \uc774\uc804 \ucf54\ub4dc\uc5d0\uc11c draw_string()\ud568\uc218\uac00 \ucd94\uac00\ub410\uc2b5\ub2c8\ub2e4. The draw_string() function has been added to the previous code.<\/p>\n\n\n\n
\ud83d\udc49\ufe0f A~Z\uae4c\uc9c0 \uc0ac\uc6a9\uac00\ub2a5\ud558\ub3c4\ub85d \ubb38\uc790\ub97c \ucd94\uac00\ud588\uc2b5\ub2c8\ub2e4. We have added characters to support the full range from A to Z.<\/p>\n\n\n\n
\ud83d\udc49\ufe0f boot.asm\uacfc sector2.asm\uc740 miniOS-9\uc640 \ub3d9\uc77c\ud569\ub2c8\ub2e4. boot.asm and sector2.asm are identical to those of miniOS-9.<\/p>\n\n\n\n
\u2714\ufe0f A~Z\uae4c\uc9c0 \ubb38\uc790 \ubc94\uc704 \uac80\uc0ac(\ub300\ubb38\uc790) Check character range from A to Z (uppercase)<\/p>\n\n\n\n
1)draw_char\ud568\uc218\uc758 \ud30c\ub77c\uba54\ud130\ub85c \uc785\ub825\ub41c \ubcc0\uc218(char c)\uac00 A~Z\uae4c\uc9c0 \ubc94\uc704\ub0b4\uc5d0 \uc788\ub294\uc9c0 \uac80\uc0ac\ud569\ub2c8\ub2e4. It checks whether the variable (char c) passed as a parameter to the draw_char function falls within the range of A to Z.<\/p>\n\n\n\n
2) \ub300\ubb38\uc790 \uc544\uc2a4\ud0a4 \ucf54\ub4dc ‘A’ (65) ~ ‘Z’ (90) \uc785\ub2c8\ub2e4. These are the uppercase ASCII codes ‘A’ (65) through ‘Z’ (90).<\/p>\n\n\n\n
3)if (c >= ‘A’ && c <= ‘Z’) { } \ub294 if (c >= 65 && c <= 90) {}\uacfc \uac19\uc2b5\ub2c8\ub2e4. if (c >= 'A' && c <= 'Z') { }<\/code> is equivalent to if (c >= 65 && c <= 90) {}<\/code>.<\/p>\n\n\n\n
\u2714\ufe0f draw_string()\ud568\uc218 \uc2e4\ud589 Execute the draw_string() function.<\/p>\n\n\n\n
— kernel_main\ud568\uc218\uc5d0\uc11c \uc544\ub798\uc640 \uac19\uc774 draw_string()\ud568\uc218\ub97c \uc2e4\ud589\ud569\ub2c8\ub2e4. In the kernel_main<\/code> function, execute the draw_string()<\/code> function as shown below.<\/p>\n\n\n\n
1) draw_string(x,y,”character”,color number)\ud615\ud0dc\uc785\ub2c8\ub2e4. It takes the form draw_string(x, y, \"character\", color number)<\/code>.<\/p>\n\n\n\n
2) kernel_main\ud568\uc218 \ub0b4\uc5d0\uc11c \uc544\ub798\ucc98\ub7fc draw_string\ud568\uc218\ub97c \uc2e4\ud589\ud558\uba74 \ubb38\uc790\ub97c \ucd9c\ub825 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. You can output characters by calling the draw_string<\/code> function within the kernel_main<\/code> function, as shown below.<\/p>\n\n\n\n
— draw_string\ud568\uc218\ub97c \uc2e4\ud589\ud558\uba74 \uc544\ub798\uc758 \ubc18\ubcf5\ubb38 \ub85c\uc9c1\uc73c\ub85c \uc785\ub825\ub41c \ubb38\uc790\ub97c \ubc30\uc5f4\ub85c \uaebc\ub0b4\uc11c \ucd9c\ub825\ud569\ub2c8\ub2e4. When the draw_string<\/code> function is executed, the loop logic below extracts the input characters into an array and outputs them.<\/p>\n\n\n\n
\/\/ \ubb38\uc790\uc5f4\uc758 \ub05d('\\0')\uc744 \ub9cc\ub0a0 \ub54c\uae4c\uc9c0 \ud55c \uae00\uc790\uc529 \ubc18\ubcf5\uc218\ud589\n \/\/ Iterate character by character until the end of the string ('\\0') is reached\n for (int i = 0; str[i] != '\\0'; i++) {\n\n \/\/ \uacf5\ubc31 \ubb38\uc790(' ') \ucc98\ub9ac: \uae00\uc790\ub97c \uadf8\ub9ac\uc9c0\ub294 \uc54a\uace0 \uac00\ub85c\ub85c 8\ud53d\uc140 \uac74\ub108\ub700\n \/\/ Handle space character (' '): Skip 8 pixels horizontally without drawing a character.\n if (str[i] == ' ') {\n current_x += 8;\n continue;\n }\n\n \/\/ \ud604\uc7ac \uae00\uc790 \uadf8\ub9ac\uae30 \/ Drawing current characters\n draw_char(current_x, start_y, str[i], color);\n \n \/\/ \ub2e4\uc74c \uae00\uc790\ub294 \uac00\ub85c\ub85c 8\ud53d\uc140 \ub4a4\uc5d0 \uadf8\ub824\uc9c0\ub3c4\ub85d \uc88c\ud45c \uc774\ub3d9 (\uae00\uc790 \ud06c\uae30\uac00 8x8\uc774\ubbc0\ub85c)\n \/\/ Shift the coordinates to draw the next character 8 pixels to the right (since the character size is 8x8).\n current_x += 8;\n }<\/code><\/pre>\n\n\n\n
1)\ubc30\uc5f4 \ub0b4\uc758 \ubb38\uc790\uc5d0 \uacf5\ubc31\uc774 \uc788\ub294 \uacbd\uc6b0 \uc6b0\uce21\uc73c\ub85c \ud55c\uce78 \ub744\uc6b0\uae30 \uc704\ud574 current_x\uc5d0 8(\ud53d\uc140)\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4. If there is a space character in the array, 8 (pixels) are added to current_x<\/code> to shift the position one space to the right.<\/p>\n\n\n\n
3)\uae00\uc790\uac00 \uadf8\ub824\uc9c0\uba74 \ub2e4\uc74c\uae00\uc790\ub97c \uadf8\ub9ac\uae30 \uc704\ud574 \uc6b0\uce21\uc73c\ub85c 8\ud53d\uc140 \uc774\ub3d9\ud569\ub2c8\ub2e4. Once a character is drawn, the position shifts 8 pixels to the right to draw the next character.<\/p>\n\n\n\n
\ud83d\udc49\ufe0f \ud568\uc218\ub85c \ubb38\uc790\uc5f4 \uc804\uccb4\ub97c \ud654\uba74\uc5d0 \ucd9c\ub825\ud558\ub294 \ucf54\ub4dc\uc785\ub2c8\ub2e4.This is code that outputs the entire string to the screen using a function. \ud83d\udc49\ufe0f \uc774\uc804 \ucf54\ub4dc\uc5d0\uc11c draw_string()\ud568\uc218\uac00 \ucd94\uac00\ub410\uc2b5\ub2c8\ub2e4.The draw_string() function has been added to the previous code. \ud83d\udc49\ufe0f A~Z\uae4c\uc9c0 \uc0ac\uc6a9\uac00\ub2a5\ud558\ub3c4\ub85d \ubb38\uc790\ub97c \ucd94\uac00\ud588\uc2b5\ub2c8\ub2e4.We have added characters to support the full range from A to Z. \ud83d\udc49\ufe0f \ud30c\uc77c \/ files […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26,1],"tags":[],"class_list":["post-6137","post","type-post","status-publish","format-standard","hentry","category-os","category-uncategorized","missing-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/6137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=6137"}],"version-history":[{"count":3,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/6137\/revisions"}],"predecessor-version":[{"id":6142,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/6137\/revisions\/6142"}],"wp:attachment":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=6137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=6137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=6137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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