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Copy pathdisk_writer.s
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disk_writer.s
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DWAIT .equ 0fch
DCOM .equ 0f8h
DDATA .equ 0fbh
DSTAT .equ 0f8h
DSECT .equ 0fah
mvi d, 0
loop_b_begin: ; 0 <= d < 77 - Track Counter
mvi a, 77
cmp d
jz loop_b_end
mvi a, 0xf4
out DCOM
mvi b, 0
loop_c_begin: ; 0 <= b < 46
mvi a, 46
cmp b
jz loop_c_end
in DWAIT
mvi a, 0
out DDATA
inr b
jmp loop_c_begin
loop_c_end:
in DWAIT
mvi a, 252
out DDATA
mvi b, 0
loop_d_begin: ; 0 <= b < 26
mvi a, 26
cmp b
jz loop_d_end
in DWAIT
mvi a, 0
out DDATA
inr b
jmp loop_d_begin
loop_d_end:
mvi b, 1
loop_e_begin: ; 1 <= b < 27 - Segment Counter
mvi a, 27
cmp b
jz loop_e_end
mvi c, 0
loop_f_begin: ; 0 <= c < 6
mvi a, 6
cmp c
jz loop_f_end
in DWAIT
mvi a, 0
out DDATA
inr c
jmp loop_f_begin
loop_f_end:
in DWAIT
mvi a, 254
out DDATA
in DWAIT
mov a, d
out DDATA
in DWAIT
mvi a, 0
out DDATA
in DWAIT
mov a, b
out DDATA
in DWAIT
mvi a, 0
out DDATA
in DWAIT
mvi a, 247
out DDATA
mvi c, 0
loop_g_begin: ; 0 <= c < 17
mvi a, 17
cmp c
jz loop_g_end
in DWAIT
mvi a, 0
out DDATA
inr c
jmp loop_g_begin
loop_g_end:
in DWAIT
mvi a, 251
out DDATA
mvi c, 0
loop_h_begin: ; 0 <= c < 128
mvi a, 128
cmp c
jz loop_h_end
in DWAIT
mvi a, 229
out DDATA
inr c
jmp loop_h_begin
loop_h_end:
in DWAIT
mvi a, 247
out DDATA
mvi c, 0
loop_i_begin: ; 0 <= c < 27
mvi a, 27
cmp c
jz loop_i_end
in DWAIT
mvi a, 0
out DDATA
inr c
jmp loop_i_begin
loop_i_end:
inr b
jmp loop_e_begin
loop_e_end:
end_seq_j_begin:
in DWAIT
ora a
jp end_seq_k_end
mvi a, 0
out DDATA
jmp end_seq_j_begin
end_seq_k_end:
mvi a, 0b01011100
out DCOM
IN DWAIT
inr d
jmp loop_b_begin
loop_b_end:
hlt