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String buffer refactoring, part 2.

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Switch to pointers for start/pos/end of buffer.
Abstract out some buffer writers.
This commit is contained in:
Mike Pall
2013-02-27 21:17:27 +01:00
parent 28cfcf7744
commit 116cdd7e9a
18 changed files with 334 additions and 336 deletions
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21
src/vm_ppc.dasc
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@@ -2201,15 +2201,16 @@ static void build_subroutines(BuildCtx *ctx)
|.endif
| lwz TMP0, STR:CARG1->len
| cmpwi CARG3, 0
| lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
| lwz TMP1, DISPATCH_GL(tmpbuf.e)(DISPATCH)
| lwz CARG2, DISPATCH_GL(tmpbuf.b)(DISPATCH)
| ble >2 // Count <= 0? (or non-int)
| cmplwi TMP0, 1
| add TMP3, CARG2, CARG3
| subi TMP2, CARG3, 1
| blt >2 // Zero length string?
| cmplw cr1, TMP1, CARG3
| cmplw cr1, TMP1, TMP3
| bne ->fff_fallback // Fallback for > 1-char strings.
| lbz TMP0, STR:CARG1[1]
| lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
| blt cr1, ->fff_fallback
|1: // Fill buffer with char. Yes, this is suboptimal code (do you care?).
| cmplwi TMP2, 0
@@ -2229,13 +2230,14 @@ static void build_subroutines(BuildCtx *ctx)
| lwz STR:CARG1, 4(BASE)
| blt ->fff_fallback
| checkstr CARG3
| lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
| lwz CARG2, DISPATCH_GL(tmpbuf.b)(DISPATCH)
| lwz TMP1, DISPATCH_GL(tmpbuf.e)(DISPATCH)
| bne ->fff_fallback
| lwz CARG3, STR:CARG1->len
| la CARG1, #STR(STR:CARG1)
| lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
| li TMP2, 0
| cmplw TMP1, CARG3
| add TMP3, CARG2, CARG3
| cmplw TMP1, TMP3
| subi TMP3, CARG3, 1
| blt ->fff_fallback
|1: // Reverse string copy.
@@ -2255,13 +2257,14 @@ static void build_subroutines(BuildCtx *ctx)
| lwz STR:CARG1, 4(BASE)
| blt ->fff_fallback
| checkstr CARG3
| lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
| lwz CARG2, DISPATCH_GL(tmpbuf.b)(DISPATCH)
| lwz TMP1, DISPATCH_GL(tmpbuf.e)(DISPATCH)
| bne ->fff_fallback
| lwz CARG3, STR:CARG1->len
| la CARG1, #STR(STR:CARG1)
| lp CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
| cmplw TMP1, CARG3
| li TMP2, 0
| add TMP3, CARG2, CARG3
| cmplw TMP1, TMP3
| blt ->fff_fallback
|1: // ASCII case conversion.
| cmplw TMP2, CARG3