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85 lines
3.9 KiB
PHP
85 lines
3.9 KiB
PHP
PLATFORM_INCLUDE "platform-config.inc"
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; *** options ***
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; Set this to a nonzero value if any code will run out of bank 0. If not set, then
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; numeric literals <= $0000FFFF will use the "fast literal" mode, getting on the
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; stack faster and using less memory. This should be set in the platform-specific
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; config, and will only be set here if the platform config does not set it.
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.if .defined(platform_fast_lits)
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.out "platform_fast_lits set by platform config or cmdline"
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.define no_fast_lits 0
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.else
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.define no_fast_lits 1
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.endif
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; Set this to the size of the terminal input buffer. This will be dynamically allocated
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; when the system starts. If command line history is enabled, several of these may be
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; allocated at any given time. IEEE 1275 requires that it be 128 chars.
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.define tib_size 128
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; Set this to the number of bytes in the PAD. This is not required by IEEE 1275 and can
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; be turned off with 0, saving a few bytes. ANSI X3J14-1994 requires at least 84 chars
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; (bytes in our case) in the pad if it is present
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.define pad_size $100
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; Set this to the byte size of the WORD buffer. IEEE 1275 requires it to be (>=) 80.
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; this buffer is shared with the pictured numeric output, which IEEE 1275 requires to
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; be able to hold (>=) 66 characters.
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.define word_buf_size 80
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; Set this to a nonzero value to include FCode features (see IEEE 1275). This will
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; cause the system size to increase by ~6K and also increase memory usage.
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; The FCode evaluator supports most of the non-Device Tree FCode numbers, which can be
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; added later via FCode or source in order to build an Open Firmware implementation on
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; top of OF816.
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.define include_fcode 1
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; Set this to the number of word lists that may be in the search order. This number
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; is required by ANSI X3J14-1994 to be 8 or greater if search order words are implemented.
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; If this is set to 0, search order words are not included and about 1K is saved from
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; the system size.
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.define max_search_order 8
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; IEEE 1275 specifies that certain words where interpretation semantics are not defined
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; by ANSI X3J14-1994 must trigger a temporary definition outside of data space in order
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; to provide interpretation semantics equivalent to what occurs in a compiled word.
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; (e.g. '10 0 do i . loop' works outside of a definition)
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; set this to the number of bytes allowed for such a temporary definition (512 =~ 128
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; cells). The memory used for a temporary definition is allocated from the heap, and is
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; *not* bounds-checked during creation of the temporary definition.
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.define max_tempdef 512
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; SEE is a large complicated word. Omitting it saves 500 bytes.
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.define include_see 1
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; quotations are non-standard in ANS Forth and IEEE 1275, but may be useful
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.define enable_quotations 1
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; IEEE 1275 declines to identify what ENVIRONMENT? should return. ANS Forth gives
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; specifics, but Forth 2012 deprecates detecting wordlists through environmental queries
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; set this to 0 to include no environmental queries (ENVIRONMENT? always returns false)
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; set this to 1 to include everything but the word list entries
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; set this to 2 to include all of them
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; note that the routines to access the environmental queries dictionary are not omitted,
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; even when env_query_level is zero. As long as max_search_order is nonzero it is
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; possible to add items to the environmental query dictionary
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.define env_query_level 0
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; UNALIGNED-[LW][!@] words are specified by IEEE 1275 for the user interface only (not
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; FCode). In general these are redundant on the '816 because all accesses are unaligned,
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; and in fact are defined as aliases to the normal versions of these.
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; set this to 0 to exclude them, saving a few bytes.
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.define unaligned_words 0
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; *** debug options ***
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.define trace 0 ; requires emulator cooperation via WDM instruction
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.define print_dict 0 ; output word addresses and XTs during assembly
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.if trace
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.define no_headerless 1
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.else
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.define no_headerless 0 ; set to 1 to compile headers for all words for debugging
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.endif
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