Reduce evaluate1.
This commit is contained in:
@ -16,12 +16,6 @@
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sp@ constant sp0
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rp@ constant rp0
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fp@ constant fp0
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: depth ( -- n ) sp@ sp0 - cell/ ;
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: fdepth ( -- n ) fp@ fp0 - 4 / ;
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( Useful heap size words )
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: remaining ( -- n ) 'heap-start @ 'heap-size @ + 'heap @ - ;
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: used ( -- n ) 'heap @ sp@ 'stack-cells @ cells + - 28 + ;
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( Quoting Words )
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: ' bl parse 2dup find dup >r -rot r> 0= 'notfound @ execute 2drop ;
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@ -85,7 +79,7 @@ create RECSTACK 0 , 10 cells allot
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: postpone ( "name" -- ) bl parse RECSTACK RECOGNIZE @ execute ; immediate
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: +evaluate1
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bl parse dup 0= if 2drop exit then
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RECSTACK RECOGNIZE state @ 2 + cells + @ execute
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RECSTACK RECOGNIZE state @ 1+ 1+ cells + @ execute
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;
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( Setup recognizing words. )
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@ -108,6 +102,14 @@ create RECSTACK 0 , 10 cells allot
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;
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' REC-NUM +RECOGNIZER
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: interpret0 begin +evaluate1 again ; interpret0
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( Useful stack/heap words )
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: depth ( -- n ) sp@ sp0 - cell/ ;
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: fdepth ( -- n ) fp@ fp0 - 4 / ;
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: remaining ( -- n ) 'heap-start @ 'heap-size @ + 'heap @ - ;
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: used ( -- n ) 'heap @ sp@ 'stack-cells @ cells + - 28 + ;
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( DO..LOOP )
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variable leaving
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: leaving, here leaving @ , leaving ! ;
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@ -188,35 +188,12 @@ static cell_t *evaluate1(cell_t *rp) {
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call = xt;
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}
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} else {
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cell_t n;
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if (convert((const char *) name, len, g_sys->base, &n)) {
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if (g_sys->state) {
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COMMA(g_sys->DOLIT_XT);
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COMMA(n);
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} else {
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PUSH n;
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}
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} else {
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float f;
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if (fconvert((const char *) name, len, &f)) {
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if (g_sys->state) {
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COMMA(g_sys->DOFLIT_XT);
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*(float *) g_sys->heap++ = f;
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} else {
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*++fp = f;
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}
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} else {
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#if PRINT_ERRORS
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fprintf(stderr, "CANT FIND: ");
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fwrite((void *) name, 1, len, stderr);
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fprintf(stderr, "\n");
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fprintf(stderr, "CANT FIND: ");
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fwrite((void *) name, 1, len, stderr);
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fprintf(stderr, "\n");
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#endif
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PUSH name;
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PUSH len;
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PUSH -1;
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call = g_sys->notfound;
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}
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}
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return 0;
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}
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PUSH call;
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PARK;
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@ -115,6 +115,10 @@ e: check-boot
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out: UNLOOP
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out: ?do
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out: do
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out: used
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out: remaining
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out: fdepth
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out: depth
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out: postpone
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out: next
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out: for
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@ -134,10 +138,6 @@ e: check-boot
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out: char
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out: [']
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out: '
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out: used
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out: remaining
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out: fdepth
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out: depth
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out: fp0
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out: rp0
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out: sp0
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@ -159,6 +159,11 @@ e: check-tier2-opcodes
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;e
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e: check-tier1-opcodes
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out: 0
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out: 1
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out: -1
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out: 10
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out: 41
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out: nip
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out: rdrop
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out: */
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@ -13,6 +13,11 @@
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// limitations under the License.
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#define TIER1_OPCODE_LIST \
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X("0", ZERO, PUSH 0) \
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X("1", ONE, PUSH 1) \
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X("-1", NEGATIVEONE, PUSH -1) \
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X("10", TEN, PUSH 10) \
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X("41", FOURTYONE, PUSH 41) \
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Y(nip, NIP) \
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Y(rdrop, --rp) \
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XV(forth, "*/", STARSLASH, SSMOD_FUNC; NIP) \
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@ -61,7 +61,7 @@ transfer{
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tib-setup input-limit sp-limit ?stack
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[SKIP] [SKIP]' raw-ok boot-prompt free.
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$place zplace BUILTIN_MARK
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nest-depth handler +evaluate1 do-notfound
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nest-depth handler +evaluate1 do-notfound interpret0
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}transfer
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( Move branching opcodes to separate vocabulary. )
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