search for: f_handl

...dd edx,fname_buf + + xor al,al + ret + +; Open file +; +; return: +; al 0: ok, 1: file not found +; ecx file length (al = 0) +; +cb_fopen: + push ds + pop es + mov ax,6 + mov si,fname_buf + int 22h + jnc cb_fopen_ok + mov al,1 + jmp cb_fopen_end +cb_fopen_ok: + mov ecx,eax + mov [f_handle],si + mov [f_size],ecx + xor al,al +cb_fopen_end: + ret + +; Read next chunk +; +; return: +; edx buffer address (linear) +; ecx data length (< 64k) +; +cb_fread: + cmp dword [f_size],0 + jz cb_fread_eof + push ds + pop es + mov ax,7 + mov si,[f_handle] + mov bx,trackbuf + mov...

...+ xor al,al + ret + +; Open file +; +; return: +; al 0: ok, 1: file not found +; ecx file length (al = 0) +; +cb_fopen: + push ds + pop es + mov ax,6 + mov si,fname_buf + int 22h + jnc cb_fopen_ok +cb_fopen_failed: + mov al,1 + jmp cb_fopen_end +cb_fopen_ok: + mov ecx,eax + mov [f_handle],si + mov [f_size],ecx + xor al,al +cb_fopen_end: + ret + +; Read next chunk +; +; return: +; edx buffer address (linear) +; ecx data length (< 64k) +; +cb_fread: + cmp dword [f_size],0 + jz cb_fread_eof + push ds + pop es + mov ax,7 + mov si,[f_handle] + mov bx,trackbuf + mov...