Highlight selected menu item with > ... <.
Moved global variables on the stack. Hide cursor while menu is displayed. Print error message at correct location. Reboot on error. Display "Loading <name>". git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25089 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Pfeiffer
parent
7b51470a32
commit
7ca9a33b59
@ -2,19 +2,21 @@
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// ./make_array kBootLoader bootman.bin
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static const uint8 kBootLoader[] = {
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0xb8, 0xc0, 0x07, 0x8e, 0xd8, 0x8e, 0xc0, 0x8e, 0xd0, 0xbc, 0xff, 0xff, 0xfc, 0xb4, 0x06, 0x30,
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0xc0, 0xb7, 0x0f, 0x31, 0xc9, 0xba, 0x4f, 0x18, 0xcd, 0x10, 0xb7, 0x00, 0xb4, 0x02, 0xba, 0x1f,
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0x01, 0xcd, 0x10, 0xbe, 0x83, 0x00, 0xb3, 0x0f, 0xe8, 0x2c, 0x00, 0xb4, 0x02, 0xba, 0x1b, 0x17,
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0xb3, 0x07, 0xcd, 0x10, 0xbe, 0x96, 0x00, 0xe8, 0x1d, 0x00, 0xb4, 0x42, 0xb2, 0x80, 0xbe, 0x73,
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0x00, 0xcd, 0x13, 0x72, 0x03, 0xe9, 0xb8, 0x01, 0xbe, 0xb1, 0x00, 0xb3, 0x04, 0xe8, 0x07, 0x00,
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0xb4, 0x00, 0xcd, 0x16, 0xf4, 0xeb, 0xf9, 0x51, 0xe9, 0x11, 0x00, 0xb9, 0x01, 0x00, 0xb4, 0x09,
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0xcd, 0x10, 0xb4, 0x03, 0xcd, 0x10, 0xfe, 0xc2, 0xb4, 0x02, 0xcd, 0x10, 0xac, 0x3c, 0x00, 0x75,
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0xea, 0x59, 0xc3, 0x10, 0x00, 0x03, 0x00, 0x00, 0x02, 0xc0, 0x07, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x48, 0x61, 0x69, 0x6b, 0x75, 0x20, 0x42, 0x6f, 0x6f, 0x74, 0x20, 0x4d, 0x61,
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0x6e, 0x61, 0x67, 0x65, 0x72, 0x00, 0x53, 0x65, 0x6c, 0x65, 0x63, 0x74, 0x20, 0x61, 0x6e, 0x20,
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0x4f, 0x53, 0x20, 0x66, 0x72, 0x6f, 0x6d, 0x20, 0x74, 0x68, 0x65, 0x20, 0x6d, 0x65, 0x6e, 0x75,
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0x00, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x20, 0x6c, 0x6f, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x20, 0x73,
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0x65, 0x63, 0x74, 0x6f, 0x72, 0x73, 0x21, 0x00, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0xb8, 0xc0, 0x07, 0x8e, 0xd8, 0x8e, 0xc0, 0x8e, 0xd0, 0xbc, 0xf3, 0xff, 0x89, 0xe5, 0xfc, 0xb4,
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0x06, 0x30, 0xc0, 0xb7, 0x0f, 0x31, 0xc9, 0xba, 0x4f, 0x18, 0xcd, 0x10, 0xe8, 0x63, 0x00, 0xb7,
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0x00, 0xba, 0x1f, 0x01, 0x89, 0x56, 0x08, 0xbe, 0xa9, 0x00, 0xb3, 0x0f, 0xe8, 0x2f, 0x00, 0xba,
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0x1b, 0x17, 0x89, 0x56, 0x08, 0xb3, 0x07, 0xbe, 0xbc, 0x00, 0xe8, 0x21, 0x00, 0xb4, 0x42, 0xb2,
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0x80, 0xbe, 0x99, 0x00, 0xcd, 0x13, 0x72, 0x03, 0xe9, 0xb5, 0x01, 0xe8, 0x43, 0x00, 0xbe, 0xd7,
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0x00, 0xb3, 0x04, 0xe8, 0x08, 0x00, 0xb4, 0x00, 0xcd, 0x16, 0xb2, 0x80, 0xcd, 0x19, 0x50, 0x53,
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0x51, 0x52, 0x30, 0xff, 0xe9, 0x11, 0x00, 0x8b, 0x56, 0x08, 0xb4, 0x02, 0xcd, 0x10, 0xfe, 0x46,
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0x08, 0xb9, 0x01, 0x00, 0xb4, 0x09, 0xcd, 0x10, 0xac, 0x3c, 0x00, 0x75, 0xea, 0x5a, 0x59, 0x5b,
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0x58, 0xc3, 0xb4, 0x03, 0xcd, 0x10, 0x89, 0x4e, 0x0a, 0xb4, 0x01, 0xb9, 0x00, 0x20, 0xcd, 0x10,
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0xc3, 0x8b, 0x4e, 0x0a, 0xb4, 0x01, 0xcd, 0x10, 0xc3, 0x10, 0x00, 0x03, 0x00, 0x00, 0x02, 0xc0,
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0x07, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x61, 0x69, 0x6b, 0x75, 0x20, 0x42,
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0x6f, 0x6f, 0x74, 0x20, 0x4d, 0x61, 0x6e, 0x61, 0x67, 0x65, 0x72, 0x00, 0x53, 0x65, 0x6c, 0x65,
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0x63, 0x74, 0x20, 0x61, 0x6e, 0x20, 0x4f, 0x53, 0x20, 0x66, 0x72, 0x6f, 0x6d, 0x20, 0x74, 0x68,
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0x65, 0x20, 0x6d, 0x65, 0x6e, 0x75, 0x00, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x20, 0x6c, 0x6f, 0x61,
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0x64, 0x69, 0x6e, 0x67, 0x20, 0x73, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x73, 0x21, 0x00, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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@ -27,37 +29,42 @@ static const uint8 kBootLoader[] = {
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42,
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x55, 0xaa,
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0xa1, 0x9a, 0x03, 0xa3, 0x47, 0x03, 0xb8, 0x13, 0x00, 0xf7, 0x26, 0x9c, 0x03, 0x89, 0xd3, 0x50,
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0xb4, 0x00, 0xcd, 0x1a, 0x58, 0x01, 0xd0, 0x11, 0xcb, 0xa3, 0x4b, 0x03, 0x89, 0x1e, 0x4d, 0x03,
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0xa0, 0x98, 0x03, 0xd0, 0xe8, 0xb3, 0x0c, 0x28, 0xc3, 0x88, 0x1e, 0x49, 0x03, 0xe8, 0x65, 0x00,
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0x81, 0x3e, 0x9c, 0x03, 0xff, 0xff, 0x74, 0x27, 0xb4, 0x01, 0xcd, 0x16, 0x75, 0x21, 0xe8, 0x05,
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0x00, 0x73, 0xf5, 0xe9, 0x9b, 0x00, 0xb4, 0x00, 0xcd, 0x1a, 0x3b, 0x0e, 0x4d, 0x03, 0x72, 0x08,
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0x77, 0x08, 0x3b, 0x16, 0x4b, 0x03, 0x77, 0x02, 0xf8, 0xc3, 0xf9, 0xc3, 0xe8, 0x36, 0x00, 0xb4,
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0x00, 0xcd, 0x16, 0x80, 0xfc, 0x50, 0x74, 0x0c, 0x80, 0xfc, 0x48, 0x74, 0x18, 0x80, 0xfc, 0x1c,
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0x74, 0x6f, 0xeb, 0xeb, 0xa1, 0x47, 0x03, 0x40, 0x3b, 0x06, 0x98, 0x03, 0x75, 0x02, 0x31, 0xc0,
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0xa3, 0x47, 0x03, 0xeb, 0xd7, 0xa1, 0x47, 0x03, 0x09, 0xc0, 0x75, 0x03, 0xa1, 0x98, 0x03, 0x48,
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0xa3, 0x47, 0x03, 0xeb, 0xc7, 0xa0, 0x49, 0x03, 0xa2, 0x4a, 0x03, 0xbe, 0x9e, 0x03, 0x31, 0xc9,
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0xac, 0xfe, 0xc8, 0xd0, 0xe8, 0xb2, 0x28, 0x28, 0xc2, 0x8a, 0x36, 0x4a, 0x03, 0xb4, 0x02, 0xcd,
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0x10, 0x89, 0xcf, 0x81, 0xe7, 0x03, 0x00, 0x8a, 0x9d, 0x5f, 0x03, 0x3b, 0x0e, 0x47, 0x03, 0x75,
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0x03, 0x80, 0xf3, 0x08, 0xe8, 0x57, 0x00, 0x81, 0xc6, 0x09, 0x00, 0xfe, 0x06, 0x4a, 0x03, 0x41,
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0x3b, 0x0e, 0x98, 0x03, 0x75, 0xca, 0xb4, 0x02, 0xba, 0x1a, 0x15, 0xba, 0x1c, 0x18, 0xcd, 0x10,
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0xc3, 0xbe, 0x9e, 0x03, 0x8b, 0x0e, 0x47, 0x03, 0x41, 0x30, 0xe4, 0xe9, 0x04, 0x00, 0x81, 0xc6,
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0x09, 0x00, 0xac, 0x01, 0xc6, 0xe2, 0xf7, 0xac, 0x88, 0xc2, 0xbf, 0x57, 0x03, 0xb9, 0x04, 0x00,
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0xad, 0xab, 0xe2, 0xfc, 0xb4, 0x42, 0xbe, 0x4f, 0x03, 0xcd, 0x13, 0xbe, 0x63, 0x03, 0x72, 0x2a,
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0xa1, 0xfe, 0x01, 0x3d, 0x55, 0xaa, 0xbe, 0x79, 0x03, 0x75, 0x1f, 0xe9, 0xe2, 0xfc, 0x51, 0xe9,
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0x11, 0x00, 0xb9, 0x01, 0x00, 0xb4, 0x09, 0xcd, 0x10, 0xb4, 0x03, 0xcd, 0x10, 0xfe, 0xc2, 0xb4,
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0x02, 0xcd, 0x10, 0xac, 0x3c, 0x00, 0x75, 0xea, 0x59, 0xc3, 0xbb, 0x0f, 0x00, 0xe8, 0xde, 0xff,
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0xb4, 0x00, 0xcd, 0x16, 0xf4, 0xeb, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
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0x00, 0x01, 0x00, 0x00, 0x00, 0xc0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
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0x04, 0x03, 0x02, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x20, 0x6c, 0x6f, 0x61, 0x64, 0x69, 0x6e, 0x67,
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0x20, 0x73, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x73, 0x00, 0x4e, 0x6f, 0x74, 0x20, 0x61, 0x20, 0x62,
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0x6f, 0x6f, 0x74, 0x61, 0x62, 0x6c, 0x65, 0x20, 0x70, 0x61, 0x72, 0x74, 0x69, 0x74, 0x69, 0x6f,
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0x6e, 0x00, 0x42, 0x6f, 0x6f, 0x74, 0x21, 0x00
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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa,
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0xa1, 0x09, 0x04, 0x89, 0x46, 0x00, 0xb8, 0x13, 0x00, 0xf7, 0x26, 0x0b, 0x04, 0x89, 0xd3, 0x50,
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0xb4, 0x00, 0xcd, 0x1a, 0x58, 0x01, 0xd0, 0x11, 0xcb, 0x89, 0x46, 0x04, 0x89, 0x5e, 0x06, 0xa0,
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0x07, 0x04, 0xd0, 0xe8, 0xb3, 0x0c, 0x28, 0xc3, 0x88, 0x5e, 0x02, 0xe8, 0x64, 0x00, 0x81, 0x3e,
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0x0b, 0x04, 0xff, 0xff, 0x74, 0x25, 0xb4, 0x01, 0xcd, 0x16, 0x75, 0x1f, 0xe8, 0x05, 0x00, 0x73,
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0xf5, 0xe9, 0xa6, 0x00, 0xb4, 0x00, 0xcd, 0x1a, 0x3b, 0x4e, 0x06, 0x72, 0x07, 0x77, 0x07, 0x3b,
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0x56, 0x04, 0x77, 0x02, 0xf8, 0xc3, 0xf9, 0xc3, 0xe8, 0x37, 0x00, 0xb4, 0x00, 0xcd, 0x16, 0x80,
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0xfc, 0x50, 0x74, 0x0d, 0x80, 0xfc, 0x48, 0x74, 0x19, 0x80, 0xfc, 0x1c, 0x75, 0xed, 0xe9, 0x79,
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0x00, 0x8b, 0x46, 0x00, 0x40, 0x3b, 0x06, 0x07, 0x04, 0x75, 0x02, 0x31, 0xc0, 0x89, 0x46, 0x00,
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0xeb, 0xd6, 0x8b, 0x46, 0x00, 0x09, 0xc0, 0x75, 0x03, 0xa1, 0x07, 0x04, 0x48, 0x89, 0x46, 0x00,
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0xeb, 0xc6, 0x8a, 0x46, 0x02, 0x88, 0x46, 0x09, 0xbe, 0x0d, 0x04, 0x31, 0xc9, 0xac, 0x04, 0x03,
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0xd0, 0xe8, 0xb2, 0x28, 0x28, 0xc2, 0x88, 0x56, 0x08, 0xb0, 0x10, 0xe8, 0x30, 0x00, 0xfe, 0x46,
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0x08, 0x89, 0xcf, 0x81, 0xe7, 0x03, 0x00, 0x8a, 0x9d, 0xcc, 0x03, 0x3b, 0x4e, 0x00, 0x75, 0x03,
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0x80, 0xf3, 0x08, 0xe8, 0xb6, 0x00, 0x81, 0xc6, 0x09, 0x00, 0x80, 0x46, 0x08, 0x01, 0xb0, 0x11,
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0xe8, 0x0b, 0x00, 0xfe, 0x46, 0x09, 0x41, 0x3b, 0x0e, 0x07, 0x04, 0x75, 0xc0, 0xc3, 0x3b, 0x4e,
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0x00, 0x74, 0x02, 0xb0, 0x20, 0xb3, 0x0f, 0xe9, 0xb6, 0x00, 0xe8, 0xa4, 0xfd, 0xe8, 0x83, 0x00,
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0xac, 0x88, 0xc2, 0xbf, 0xc4, 0x03, 0xb9, 0x04, 0x00, 0xad, 0xab, 0xe2, 0xfc, 0xb4, 0x42, 0xbe,
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0xbc, 0x03, 0xcd, 0x13, 0xbe, 0xd0, 0x03, 0x72, 0x40, 0xa1, 0xfe, 0x01, 0x3d, 0x55, 0xaa, 0xbe,
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0xe6, 0x03, 0x75, 0x35, 0xb4, 0x06, 0x30, 0xc0, 0xb7, 0x0f, 0x31, 0xc9, 0xba, 0x4f, 0x18, 0xcd,
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0x10, 0xc7, 0x46, 0x08, 0x00, 0x00, 0xbe, 0xff, 0x03, 0xb3, 0x07, 0xe8, 0x4e, 0x00, 0xfe, 0x46,
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0x08, 0xe8, 0x29, 0x00, 0x46, 0xe8, 0x44, 0x00, 0xba, 0x00, 0x01, 0x30, 0xff, 0xb4, 0x02, 0xcd,
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0x10, 0xe8, 0x2f, 0x00, 0x8a, 0x14, 0xe9, 0xb7, 0xfc, 0xba, 0x1a, 0x15, 0x89, 0x56, 0x08, 0xbb,
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0x0f, 0x00, 0xe8, 0x27, 0x00, 0xb4, 0x00, 0xcd, 0x16, 0xb2, 0x80, 0xcd, 0x19, 0xbe, 0x0d, 0x04,
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0x8b, 0x4e, 0x00, 0x41, 0x30, 0xe4, 0xe9, 0x07, 0x00, 0xac, 0x01, 0xc6, 0x81, 0xc6, 0x09, 0x00,
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0xe2, 0xf7, 0xc3, 0xe8, 0xe7, 0xff, 0xac, 0x30, 0xe4, 0x01, 0xc6, 0xc3, 0x50, 0x53, 0x51, 0x52,
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||||
0x30, 0xff, 0xe9, 0x11, 0x00, 0x8b, 0x56, 0x08, 0xb4, 0x02, 0xcd, 0x10, 0xfe, 0x46, 0x08, 0xb9,
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||||
0x01, 0x00, 0xb4, 0x09, 0xcd, 0x10, 0xac, 0x3c, 0x00, 0x75, 0xea, 0x5a, 0x59, 0x5b, 0x58, 0xc3,
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0x50, 0x53, 0x51, 0x52, 0x30, 0xff, 0x8b, 0x56, 0x08, 0xb4, 0x02, 0xcd, 0x10, 0xfe, 0x46, 0x08,
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0xb9, 0x01, 0x00, 0xb4, 0x09, 0xcd, 0x10, 0x5a, 0x59, 0x5b, 0x58, 0xc3, 0x10, 0x00, 0x01, 0x00,
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0x00, 0x00, 0xc0, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x04, 0x02, 0x03,
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0x45, 0x72, 0x72, 0x6f, 0x72, 0x20, 0x6c, 0x6f, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x20, 0x73, 0x65,
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||||
0x63, 0x74, 0x6f, 0x72, 0x73, 0x00, 0x4e, 0x6f, 0x74, 0x20, 0x61, 0x20, 0x62, 0x6f, 0x6f, 0x74,
|
||||
0x61, 0x62, 0x6c, 0x65, 0x20, 0x70, 0x61, 0x72, 0x74, 0x69, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x4c,
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0x6f, 0x61, 0x64, 0x69, 0x6e, 0x67, 0x00
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};
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@ -22,12 +22,15 @@
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%assign BIOS_VIDEO_SERVICES 0x10
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%assign BIOS_DISK_SERVICES 0x13
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%assign BIOS_KEYBOARD_SERVICES 0x16
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%assign BIOS_REBOOT 0x19
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%assign BIOS_REBOOT 0x19 ; dl - boot drive number
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%assign BIOS_TIME_SERVICES 0x1A
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; video services
|
||||
%assign SET_VIDEO_MODE 0x00 ; al - mode
|
||||
|
||||
%assign SET_CURSOR_SHAPE 0x01 ; ch - starting scan line (5 bits)
|
||||
; cl - ending scan line (5 bits)
|
||||
|
||||
%assign SET_CURSOR 0x02 ; dl - column
|
||||
; dh - row
|
||||
; bh - page
|
||||
@ -154,6 +157,18 @@ BITS 16
|
||||
resb sizeof(%1) * %2
|
||||
%endmacro
|
||||
|
||||
; Variables on stack
|
||||
struc Locals
|
||||
selection resw 1
|
||||
firstLine resb 2 ; low byte used only
|
||||
timeoutTicks resd 1
|
||||
cursorX resb 1
|
||||
cursorY resb 1
|
||||
cursorShape resw 1
|
||||
endstruc
|
||||
|
||||
cursorPosition equ cursorX
|
||||
|
||||
%macro DEBUG_PAUSE 0
|
||||
push ax
|
||||
mov ah, READ_CHAR
|
||||
@ -161,7 +176,7 @@ BITS 16
|
||||
pop ax
|
||||
%endmacro
|
||||
|
||||
%macro clearScreen 0
|
||||
%macro CLEAR_SCREEN 0
|
||||
mov ah, SCROLL_UP
|
||||
xor al, al
|
||||
mov bh, WHITE
|
||||
@ -171,24 +186,33 @@ BITS 16
|
||||
%endmacro
|
||||
|
||||
; Prints a null terminated string
|
||||
; bl ... color
|
||||
; si ... offset to string
|
||||
%macro printString 0
|
||||
%macro PRINT_STRING 0
|
||||
push ax
|
||||
push bx
|
||||
push cx
|
||||
push dx
|
||||
xor bh, bh ; write on page 0
|
||||
jmp .loop_condition
|
||||
.loop
|
||||
mov dx, [bp + cursorPosition]
|
||||
mov ah, SET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
|
||||
inc byte [bp + cursorX]
|
||||
|
||||
mov cx, 1
|
||||
mov ah, WRITE_CHAR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
mov ah, GET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
inc dl
|
||||
mov ah, SET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
.loop_condition
|
||||
lodsb
|
||||
cmp al, 0
|
||||
jnz .loop
|
||||
pop dx
|
||||
pop cx
|
||||
pop bx
|
||||
pop ax
|
||||
ret
|
||||
%endmacro
|
||||
|
||||
@ -222,29 +246,29 @@ stage1:
|
||||
mov es, ax
|
||||
mov ss, ax
|
||||
|
||||
mov sp, 0xFFFF ; Make stack empty
|
||||
mov sp, 0xFFFF - sizeof(Locals) ; Make stack empty
|
||||
mov bp, sp
|
||||
|
||||
cld ; String operations increment index registers
|
||||
|
||||
clearScreen
|
||||
CLEAR_SCREEN
|
||||
call hideCursor
|
||||
|
||||
mov bh, 0 ; Text output on page 0
|
||||
|
||||
; Print title centered at row 2
|
||||
mov ah, SET_CURSOR
|
||||
mov dx, 1 * 0x100 + (40 - TITLE_LENGTH / 2)
|
||||
int BIOS_VIDEO_SERVICES
|
||||
mov [bp + cursorPosition], dx
|
||||
|
||||
mov si, kTitle
|
||||
mov bl, WHITE
|
||||
call printstr
|
||||
|
||||
; Print message centered at second last row
|
||||
mov ah, SET_CURSOR
|
||||
mov dx, (TEXT_ROWS-2) * 0x100 + (40 - SELECT_OS_MESSAGE_LENGTH / 2)
|
||||
mov bl, LIGHT_GRAY
|
||||
int BIOS_VIDEO_SERVICES
|
||||
mov [bp + cursorPosition], dx
|
||||
|
||||
mov bl, LIGHT_GRAY
|
||||
mov si, kSelectOSMessage
|
||||
call printstr
|
||||
|
||||
@ -257,18 +281,36 @@ stage1:
|
||||
jmp stage2 ; Continue in loaded stage 2
|
||||
|
||||
.error:
|
||||
call showCursor
|
||||
mov si, kError
|
||||
mov bl, RED
|
||||
call printstr
|
||||
.halt
|
||||
|
||||
mov ah, READ_CHAR
|
||||
int BIOS_KEYBOARD_SERVICES
|
||||
hlt
|
||||
jmp .halt
|
||||
|
||||
mov dl, 0x80
|
||||
int BIOS_REBOOT
|
||||
|
||||
printStringStage1:
|
||||
printString
|
||||
|
||||
PRINT_STRING
|
||||
|
||||
hideCursor:
|
||||
mov ah, GET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
mov [bp + cursorShape], cx
|
||||
|
||||
mov ah, SET_CURSOR_SHAPE
|
||||
mov cx, 0x2000
|
||||
int BIOS_VIDEO_SERVICES
|
||||
ret
|
||||
|
||||
showCursor:
|
||||
mov cx, [bp + cursorShape]
|
||||
mov ah, SET_CURSOR_SHAPE
|
||||
int BIOS_VIDEO_SERVICES
|
||||
ret
|
||||
|
||||
nextStageDAP:
|
||||
istruc AddressPacket
|
||||
at AddressPacket.packet_size, db 0x10
|
||||
@ -284,10 +326,18 @@ kSelectOSMessage:
|
||||
kError:
|
||||
db 'Error loading sectors!', 0x00
|
||||
|
||||
; Fill the missing space to reach 510 byte
|
||||
times 510 -($-$$) db 'B'
|
||||
kStage1UnusedSpace equ 440 - ($-$$)
|
||||
; Fill the missing space to reach byte 440
|
||||
times kStage1UnusedSpace db 'B'
|
||||
|
||||
signature:
|
||||
kDiskSignatue:
|
||||
dw 0, 0
|
||||
kReserved
|
||||
dw 0
|
||||
kPartitionTable
|
||||
times 64 db 0
|
||||
|
||||
kMBRSignature:
|
||||
; Magic marker "AA55" (to identify a valid boot record)
|
||||
dw MBR_SIGNATURE
|
||||
|
||||
@ -303,7 +353,7 @@ signature:
|
||||
|
||||
stage2:
|
||||
mov ax, [defaultItem] ; Select default item
|
||||
mov [selection], ax
|
||||
mov [bp + selection], ax
|
||||
|
||||
mov ax, TICKS_PER_SECOND ; Calculate timeout ticks
|
||||
mul word [timeout]
|
||||
@ -316,14 +366,14 @@ stage2:
|
||||
pop ax ; Add current ticks
|
||||
add ax, dx
|
||||
adc bx, cx
|
||||
mov [timeoutTicks], ax
|
||||
mov [timeoutTicks + 2], bx
|
||||
mov [bp + timeoutTicks], ax
|
||||
mov [bp + timeoutTicks + 2], bx
|
||||
|
||||
mov al, [listItemCount] ; Calculate start row for menu
|
||||
shr al, 1
|
||||
mov bl, TEXT_ROWS / 2
|
||||
sub bl, al ; y = TEXT_ROWS / 2 - number of items / 2
|
||||
mov [firstLine], bl
|
||||
mov [bp + firstLine], bl
|
||||
|
||||
call printMenu
|
||||
|
||||
@ -341,10 +391,10 @@ timeoutLoop:
|
||||
isTimeoutReached:
|
||||
mov ah, READ_CLOCK
|
||||
int BIOS_TIME_SERVICES
|
||||
cmp cx, [timeoutTicks + 2]
|
||||
cmp cx, [bp + timeoutTicks + 2]
|
||||
jb .returnFalse
|
||||
ja .returnTrue
|
||||
cmp dx, [timeoutTicks]
|
||||
cmp dx, [bp + timeoutTicks]
|
||||
ja .returnTrue
|
||||
.returnFalse:
|
||||
clc
|
||||
@ -368,96 +418,89 @@ inputLoop:
|
||||
je selectPreviousPartition
|
||||
|
||||
cmp ah, KEY_RETURN
|
||||
je bootSelectedPartition
|
||||
|
||||
jmp inputLoop
|
||||
jne inputLoop
|
||||
jmp bootSelectedPartition
|
||||
|
||||
selectNextPartition:
|
||||
mov ax, [selection]
|
||||
mov ax, [bp + selection]
|
||||
inc ax
|
||||
cmp ax, [listItemCount]
|
||||
jne .done ; At end of list?
|
||||
xor ax, ax ; Then jump to first entry
|
||||
.done:
|
||||
mov [selection], ax
|
||||
mov [bp + selection], ax
|
||||
jmp mainLoop
|
||||
|
||||
selectPreviousPartition:
|
||||
mov ax, [selection]
|
||||
mov ax, [bp + selection]
|
||||
or ax, ax
|
||||
jnz .done ; At top of list?
|
||||
mov ax, [listItemCount] ; Then jump to last entry
|
||||
.done:
|
||||
dec ax
|
||||
mov [selection], ax
|
||||
mov [bp + selection], ax
|
||||
jmp mainLoop
|
||||
|
||||
|
||||
; ======================= Print the OS list ============================
|
||||
printMenu:
|
||||
mov al, [firstLine]
|
||||
mov [currentLine], al
|
||||
mov al, [bp + firstLine]
|
||||
mov [bp + cursorY], al
|
||||
|
||||
mov si, list ; Start at top of list
|
||||
xor cx, cx ; The index of the current item
|
||||
|
||||
.loop:
|
||||
lodsb ; String length incl. 0-terminator
|
||||
dec al ; center menu item
|
||||
add al, 3 ; center menu item
|
||||
shr al, 1 ; x = TEXT_COLUMNS / 2 - length / 2
|
||||
mov dl, TEXT_COLUMNS / 2
|
||||
sub dl, al
|
||||
|
||||
mov dh, [currentLine]
|
||||
mov ah, SET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
mov [bp + cursorX], dl
|
||||
|
||||
mov al, TRIANGLE_TO_RIGHT
|
||||
call updateMarker
|
||||
inc byte [bp + cursorX]
|
||||
|
||||
mov di, cx
|
||||
and di, 3
|
||||
mov bl, [kColorTable + di] ; Text color
|
||||
|
||||
cmp cx, [selection]
|
||||
cmp cx, [bp + selection]
|
||||
jne .print ; Selected item reached?
|
||||
xor bl, BRIGHT_COLOR_MASK ; Highlight it
|
||||
|
||||
.print:
|
||||
call printstr
|
||||
add si, sizeof(BootLoaderAddress)
|
||||
|
||||
inc byte [currentLine]
|
||||
|
||||
add byte [bp + cursorX], 1
|
||||
mov al, TRIANGLE_TO_LEFT
|
||||
call updateMarker
|
||||
|
||||
inc byte [bp + cursorY]
|
||||
inc cx
|
||||
|
||||
cmp cx, [listItemCount]
|
||||
jne .loop
|
||||
|
||||
mov ah, SET_CURSOR ; Set cursor position
|
||||
mov dx, (TEXT_ROWS-4) * 0x100 + (TEXT_COLUMNS / 3)
|
||||
mov dx, 0x181C
|
||||
int BIOS_VIDEO_SERVICES
|
||||
jne .loop
|
||||
ret
|
||||
|
||||
updateMarker:
|
||||
cmp cx, [bp + selection]
|
||||
je .print
|
||||
mov al, ' ' ; Clear marker
|
||||
.print
|
||||
mov bl, WHITE
|
||||
jmp printChar ; return from subroutine
|
||||
|
||||
|
||||
; ========================== Chainload ==========================
|
||||
|
||||
bootSelectedPartition:
|
||||
|
||||
mov si, list ; Search address of start sector
|
||||
; of the selected item.
|
||||
mov cx, [selection]
|
||||
inc cx ; Number of required iterations
|
||||
|
||||
xor ah, ah ; The high-byte of the string length
|
||||
; see loop body
|
||||
jmp .search_loop_entry
|
||||
|
||||
.search_loop:
|
||||
add si, sizeof(BootLoaderAddress)
|
||||
call showCursor
|
||||
|
||||
.search_loop_entry:
|
||||
lodsb ; Length of menu item name
|
||||
add si, ax ; Skip name to BootLoaderAddess
|
||||
loop .search_loop
|
||||
|
||||
call getSelectedBootLoaderAddress
|
||||
lodsb ; Set boot drive
|
||||
mov dl, al
|
||||
|
||||
@ -474,39 +517,107 @@ bootSelectedPartition:
|
||||
mov si, kReadError
|
||||
jc printAndHalt ; Failed to read sector
|
||||
|
||||
mov ax, [signature]
|
||||
mov ax, [kMBRSignature]
|
||||
cmp ax, MBR_SIGNATURE
|
||||
mov si, kNoBootablePartitionError
|
||||
jne printAndHalt ; Missing signature
|
||||
|
||||
CLEAR_SCREEN
|
||||
|
||||
; Print "Loading <name>" at top of screen
|
||||
mov word [bp + cursorPosition], 0
|
||||
mov si, kLoadingMessage
|
||||
mov bl, LIGHT_GRAY
|
||||
call printstr
|
||||
|
||||
inc byte [bp + cursorX]
|
||||
call getSelectedMenuItem
|
||||
inc si ; Skip string length byte
|
||||
call printstr
|
||||
|
||||
mov dx, 0x100
|
||||
xor bh, bh
|
||||
mov ah, SET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
|
||||
call getSelectedBootLoaderAddress
|
||||
mov dl, [si] ; drive number in dl
|
||||
|
||||
jmp $$ ; Start loaded boot loader
|
||||
|
||||
|
||||
; ====================== THE printMenu function ================
|
||||
|
||||
printStringStage2:
|
||||
printString
|
||||
|
||||
printAndHalt:
|
||||
mov dx, (TEXT_ROWS-4) * 0x100 + (TEXT_COLUMNS / 3)
|
||||
mov [bp + cursorPosition], dx
|
||||
|
||||
mov bx, 0x0F ; Page number and foreground color
|
||||
call printstr
|
||||
.halt
|
||||
mov ah, READ_CHAR
|
||||
int BIOS_KEYBOARD_SERVICES
|
||||
hlt
|
||||
jmp .halt
|
||||
mov dl, 0x80
|
||||
int BIOS_REBOOT
|
||||
|
||||
; Output:
|
||||
; si address of selected menu item
|
||||
; Trashes:
|
||||
; ax, cx
|
||||
getSelectedMenuItem:
|
||||
mov si, list ; Search address of start sector
|
||||
; of the selected item.
|
||||
mov cx, [bp + selection]
|
||||
inc cx ; Number of required iterations
|
||||
|
||||
xor ah, ah ; The high-byte of the string length
|
||||
; see loop body
|
||||
jmp .entry
|
||||
|
||||
.loop:
|
||||
lodsb ; Length of menu item name
|
||||
add si, ax ; Skip name to BootLoaderAddess
|
||||
add si, sizeof(BootLoaderAddress)
|
||||
|
||||
.entry:
|
||||
loop .loop
|
||||
ret
|
||||
|
||||
getSelectedBootLoaderAddress:
|
||||
call getSelectedMenuItem
|
||||
lodsb
|
||||
xor ah, ah
|
||||
add si, ax ; Skip name
|
||||
ret
|
||||
|
||||
printStringStage2:
|
||||
PRINT_STRING
|
||||
|
||||
; al ... ASCII character
|
||||
; bl ... color
|
||||
printChar:
|
||||
push ax
|
||||
push bx
|
||||
push cx
|
||||
push dx
|
||||
|
||||
xor bh, bh ; Write on page 0
|
||||
|
||||
mov dx, [bp + cursorPosition]
|
||||
mov ah, SET_CURSOR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
|
||||
inc byte [bp + cursorX]
|
||||
|
||||
mov cx, 1
|
||||
mov ah, WRITE_CHAR
|
||||
int BIOS_VIDEO_SERVICES
|
||||
|
||||
pop dx
|
||||
pop cx
|
||||
pop bx
|
||||
pop ax
|
||||
ret
|
||||
|
||||
; ================================ DATA ===========================
|
||||
|
||||
selection:
|
||||
dw 0x0000
|
||||
firstLine:
|
||||
db 0
|
||||
currentLine:
|
||||
db 0
|
||||
timeoutTicks:
|
||||
dw 0, 0
|
||||
|
||||
bootSectorDAP:
|
||||
istruc AddressPacket
|
||||
at AddressPacket.packet_size, db 0x10
|
||||
@ -515,13 +626,13 @@ bootSectorDAP:
|
||||
iend
|
||||
|
||||
kColorTable:
|
||||
db BLUE, RED, CYAN, GREEN
|
||||
db BLUE, RED, GREEN, CYAN
|
||||
kReadError:
|
||||
db 'Error loading sectors', 0x00
|
||||
kNoBootablePartitionError:
|
||||
db 'Not a bootable partition', 0x00
|
||||
kBootMessage:
|
||||
db 'Boot!', 0x00
|
||||
kLoadingMessage:
|
||||
db 'Loading', 0x00
|
||||
|
||||
|
||||
listItemCount:
|
||||
@ -574,5 +685,7 @@ list equ timeout + 2
|
||||
db 'OpenBSD', 0
|
||||
db 0x80
|
||||
dw 0xAAAA, 0, 0, 0
|
||||
|
||||
dw kStage1UnusedSpace
|
||||
%endif
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user