28 lines
560 B
ArmAsm
28 lines
560 B
ArmAsm
basic_main_loop:
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;; XXX - Check if direct or program mode, and get next line of input
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;; the appropriate way.
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;; XXX - For now, it is hard coded to direct mode
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;; Read a line of input
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ldx #$00
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read_line_loop:
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jsr $ffe4 ; KERNAL CHRIN
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cmp #$0d
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beq got_line_of_input
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;; Not carriage return, so try to append to line so far
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cpx #80
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bcc +
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;; Report STRING TOO LONG error (Compute's Mapping the 64 p93)
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ldx #22
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jmp basic_do_error
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*
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sta basic_input_buffer,x
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inx
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jmp read_line_loop
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got_line_of_input:
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jsr ready_message
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jmp basic_main_loop
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