102 lines
1.7 KiB
PHP
102 lines
1.7 KiB
PHP
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; TODO: add both visual and command modes
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; scan and build command line
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scan_cmdline:
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pusha
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cmp [cmdline_len], cmdline_width
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jae waitevent
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push eax
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call clear_cmdline_end
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pop eax
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mov edi, cmdline
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mov ecx, [cmdline_len]
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add edi, ecx
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lea esi, [edi-1]
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sub ecx, [cmdline_pos]
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std
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rep movsb
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cld
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stosb
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inc [cmdline_len]
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call draw_cmdline_end
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.backspace:
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cmp [cmdline_pos], 0
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jz waitevent
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dec [cmdline_pos]
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.delchar:
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call clear_cmdline_end
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mov edi, [cmdline_pos]
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dec [cmdline_len]
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mov ecx, [cmdline_len]
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sub ecx, edi
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add edi, cmdline
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lea esi, [edi+1]
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rep movsb
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call draw_cmdline_end
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call draw_cursor
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jmp waitevent
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.del:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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jmp .delchar
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.left:
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cmp [cmdline_pos], 0
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jz waitevent
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call hide_cursor
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dec [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.right:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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call hide_cursor
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.home:
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call hide_cursor
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and [cmdline_pos], 0
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call draw_cursor
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jmp waitevent
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.end:
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call hide_cursor
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mov eax, [cmdline_len]
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mov [cmdline_pos], eax
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call draw_cursor
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.up:
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.down:
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jmp waitevent
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;; We also trying to execute previous command, if empty command_line
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.enter:
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mov ecx, [cmdline_len]
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cmp ecx, 0
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jg .exec_cur
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mov cl, byte [cmdline_prev]
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cmp cl, 0
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jz waitevent
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.exec_prev:
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mov esi, cmdline_prev
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jmp .exec
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.exec_cur:
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mov esi, cmdline
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.exec:
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mov byte [esi+ecx], 0
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and [cmdline_pos], 0
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push esi
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call clear_cmdline_end
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call draw_cursor
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pop esi
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and [cmdline_len], 0
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; skip leading spaces
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call skip_spaces
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cmp al, 0
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jz waitevent
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; vim: ft= fasm
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