mirror of
https://github.com/mgcaret/of816.git
synced 2024-12-27 19:29:58 +00:00
85 lines
3.9 KiB
PHP
85 lines
3.9 KiB
PHP
PLATFORM_INCLUDE "platform-config.inc"
|
|
|
|
; *** options ***
|
|
|
|
; Set this to a nonzero value if any code will run out of bank 0. If not set, then
|
|
; numeric literals <= $0000FFFF will use the "fast literal" mode, getting on the
|
|
; stack faster and using less memory. This should be set in the platform-specific
|
|
; config, and will only be set here if the platform config does not set it.
|
|
.if .defined(platform_fast_lits)
|
|
.out "platform_fast_lits set by platform config or cmdline"
|
|
.define no_fast_lits 0
|
|
.else
|
|
.define no_fast_lits 1
|
|
.endif
|
|
|
|
; Set this to the size of the terminal input buffer. This will be dynamically allocated
|
|
; when the system starts. If command line history is enabled, several of these may be
|
|
; allocated at any given time. IEEE 1275 requires that it be 128 chars.
|
|
.define tib_size 128
|
|
|
|
; Set this to the number of bytes in the PAD. This is not required by IEEE 1275 and can
|
|
; be turned off with 0, saving a few bytes. ANSI X3J14-1994 requires at least 84 chars
|
|
; (bytes in our case) in the pad if it is present
|
|
.define pad_size $100
|
|
|
|
; Set this to the byte size of the WORD buffer. IEEE 1275 requires it to be (>=) 80.
|
|
; this buffer is shared with the pictured numeric output, which IEEE 1275 requires to
|
|
; be able to hold (>=) 66 characters.
|
|
.define word_buf_size 80
|
|
|
|
; Set this to a nonzero value to include FCode features (see IEEE 1275). This will
|
|
; cause the system size to increase by ~6K and also increase memory usage.
|
|
; The FCode evaluator supports most of the non-Device Tree FCode numbers, which can be
|
|
; added later via FCode or source in order to build an Open Firmware implementation on
|
|
; top of OF816.
|
|
.define include_fcode 1
|
|
|
|
; Set this to the number of word lists that may be in the search order. This number
|
|
; is required by ANSI X3J14-1994 to be 8 or greater if search order words are implemented.
|
|
; If this is set to 0, search order words are not included and about 1K is saved from
|
|
; the system size.
|
|
.define max_search_order 8
|
|
|
|
; IEEE 1275 specifies that certain words where interpretation semantics are not defined
|
|
; by ANSI X3J14-1994 must trigger a temporary definition outside of data space in order
|
|
; to provide interpretation semantics equivalent to what occurs in a compiled word.
|
|
; (e.g. '10 0 do i . loop' works outside of a definition)
|
|
; set this to the number of bytes allowed for such a temporary definition (512 =~ 128
|
|
; cells). The memory used for a temporary definition is allocated from the heap, and is
|
|
; *not* bounds-checked during creation of the temporary definition.
|
|
.define max_tempdef 512
|
|
|
|
; SEE is a large complicated word. Omitting it saves 500 bytes.
|
|
.define include_see 1
|
|
|
|
; quotations are non-standard in ANS Forth and IEEE 1275, but may be useful
|
|
.define enable_quotations 1
|
|
|
|
; IEEE 1275 declines to identify what ENVIRONMENT? should return. ANS Forth gives
|
|
; specifics, but Forth 2012 deprecates detecting wordlists through environmental queries
|
|
; set this to 0 to include no environmental queries (ENVIRONMENT? always returns false)
|
|
; set this to 1 to include everything but the word list entries
|
|
; set this to 2 to include all of them
|
|
; note that the routines to access the environmental queries dictionary are not omitted,
|
|
; even when env_query_level is zero. As long as max_search_order is nonzero it is
|
|
; possible to add items to the environmental query dictionary
|
|
.define env_query_level 0
|
|
|
|
; UNALIGNED-[LW][!@] words are specified by IEEE 1275 for the user interface only (not
|
|
; FCode). In general these are redundant on the '816 because all accesses are unaligned,
|
|
; and in fact are defined as aliases to the normal versions of these.
|
|
; set this to 0 to exclude them, saving a few bytes.
|
|
.define unaligned_words 0
|
|
|
|
; *** debug options ***
|
|
|
|
.define trace 0 ; requires emulator cooperation via WDM instruction
|
|
.define print_dict 0 ; output word addresses and XTs during assembly
|
|
|
|
.if trace
|
|
.define no_headerless 1
|
|
.else
|
|
.define no_headerless 0 ; set to 1 to compile headers for all words for debugging
|
|
.endif
|