31a58d00f1
Among random "better safe than sorry" changes, the real fix is in changing "4" for "5" above _find declaration. This off-by-one error had that word, which is the root word in z80, have a 0x01 prev field instead of a 0x00 one. When all memory was initialized to zero, it didn't matter, we ended up hitting 0 prev and considered ourselves properly at the end of dict. When memory wasn't initialized, however, we would end up jumping at all kinds of places, leading to random behavior.
17 行
441 B
Plaintext
17 行
441 B
Plaintext
( handle backspace: go back one char in IN>, if possible, then
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emit BS + SPC + BS )
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: _bs
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( already at IN( ? )
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IN> @ IN( = IF EXIT THEN
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IN> @ 1- IN> !
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BS SPC BS
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;
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( del is same as backspace )
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: BS? DUP 0x7f = SWAP 0x8 = OR ;
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: KEY
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0x55 RAM+ @ ( (key) override )
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?DUP IF EXECUTE ELSE (key) THEN ;
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( cont.: read one char into input buffer and returns whether we
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should continue, that is, whether CR was not met. )
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