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Check spelling (#121)
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blk/019
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blk/019
@ -9,7 +9,7 @@ Many blocks contain code. That code can be interpreted through
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LOAD. Programs stored in blocks frequently have "loader blocks"
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LOAD. Programs stored in blocks frequently have "loader blocks"
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that take care of loading all blocks relevant to the program.
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that take care of loading all blocks relevant to the program.
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Blocks spanning multipls disks are tricky. If your media isn't
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Blocks spanning multiple disks are tricky. If your media isn't
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large enough to hold all Collapse OS blocks in one unit, you'll
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large enough to hold all Collapse OS blocks in one unit, you'll
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have to make it span multiple disks. Block reference in
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have to make it span multiple disks. Block reference in
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informational texts aren't a problem: When you swap your disk,
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informational texts aren't a problem: When you swap your disk,
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blk/086
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blk/086
@ -1,6 +1,6 @@
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(cont.)
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(cont.)
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0x2b: doesWord. This word is created by "DOES>" and is followed
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0x2b: doesWord. This word is created by "DOES>" and is followed
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by a 2-byte value as well as the adress where "DOES>" was
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by a 2-byte value as well as the address where "DOES>" was
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compiled. At that address is an atom list exactly like in a
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compiled. At that address is an atom list exactly like in a
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compiled word. Upon execution, after having pushed its cell
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compiled word. Upon execution, after having pushed its cell
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addr to PSP, it execute its reference exactly like a
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addr to PSP, it execute its reference exactly like a
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blk/122
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blk/122
@ -3,7 +3,7 @@ effect described below.
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Pressing a 0-9 digit accumulates that digit into what is named
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Pressing a 0-9 digit accumulates that digit into what is named
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the "modifier". That modifier affects the behavior of many
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the "modifier". That modifier affects the behavior of many
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keystokes described below. The modifier starts at zero, but
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keystrokes described below. The modifier starts at zero, but
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most commands interpret a zero as a 1 so that they can have an
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most commands interpret a zero as a 1 so that they can have an
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effect.
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effect.
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blk/206
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blk/206
@ -1,5 +1,5 @@
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On top of that, you have the very nice BREAK, instruction,
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On top of that, you have the very nice BREAK, instruction,
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which must also be preceeded by a JRxx, and will jump to the
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which must also be preceded by a JRxx, and will jump to the
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PC following the next AGAIN,
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PC following the next AGAIN,
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blk/264
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blk/264
@ -10,7 +10,7 @@ compile it with offsets. We abort on IMMED? because we're
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never supposed to encounter an immediate at this point.
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never supposed to encounter an immediate at this point.
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If not found, we try the same word on system dict (RAM+02).
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If not found, we try the same word on system dict (RAM+02).
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If found and is immediate, execute. If founf and not immediate,
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If found and is immediate, execute. If found and not immediate,
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error. If not found, try number.
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error. If not found, try number.
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blk/388
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blk/388
@ -2,7 +2,7 @@
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( buffer overflow? same as if we typed a newline )
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( buffer overflow? same as if we typed a newline )
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IN> @ IN) = IF 0x0a ELSE KEY THEN ( c )
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IN> @ IN) = IF 0x0a ELSE KEY THEN ( c )
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DUP 0x0a = IF DROP 0xd THEN ( lf? same as cr )
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DUP 0x0a = IF DROP 0xd THEN ( lf? same as cr )
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( bacspace? handle and exit )
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( backspace? handle and exit )
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DUP BS? IF _bs EXIT THEN
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DUP BS? IF _bs EXIT THEN
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( echo back )
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( echo back )
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DUP EMIT ( c )
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DUP EMIT ( c )
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blk/422
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blk/422
@ -13,4 +13,4 @@ Core words (low) (B350)
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Then comes the part where we begin defining words in Forth.
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Then comes the part where we begin defining words in Forth.
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Core words are designed to be cross-compiled (B260), from a
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Core words are designed to be cross-compiled (B260), from a
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full Forth interpreter. This means that it has access to more
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full Forth interpreter. This means that it has access to more
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than boot words. This somes with tricky limitations. (cont.)
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than boot words. This comes with tricky limitations. (cont.)
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blk/552
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blk/552
@ -6,7 +6,7 @@ to scroll more efficiently. Instead of having to copy the LCD
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ram around at each linefeed (or instead of having to maintain
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ram around at each linefeed (or instead of having to maintain
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an in-memory buffer), we can use this feature.
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an in-memory buffer), we can use this feature.
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The Z-Offet goes upwards, with wrapping. For example, if we
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The Z-Offset goes upwards, with wrapping. For example, if we
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have an 8 pixels high line at row 0 and if our offset is 8,
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have an 8 pixels high line at row 0 and if our offset is 8,
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that line will go up 8 pixels, wrapping itself to the bottom of
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that line will go up 8 pixels, wrapping itself to the bottom of
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the screen.
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the screen.
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2
blk/632
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blk/632
@ -7,7 +7,7 @@ Start - A - C - B - Right - Left - Down - Up
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Each bit is high when button is unpressed and low if button is
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Each bit is high when button is unpressed and low if button is
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pressed. When no button is pressed, 0xff is returned.
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pressed. When no button is pressed, 0xff is returned.
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This logic below is for the Genesis controller, which is modal.
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This logic below is for the Genesis controller, which is modal.
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TH is an output pin that swiches the meaning of TL and TR. When
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TH is an output pin that switches the meaning of TL and TR. When
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TH is high (unselected), TL = Button B and TR = Button C. When
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TH is high (unselected), TL = Button B and TR = Button C. When
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TH is low (selected), TL = Button A and TR = Start. )
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TH is low (selected), TL = Button A and TR = Start. )
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