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path: root/amforth-6.5/common/words/cskip.asm
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Diffstat (limited to 'amforth-6.5/common/words/cskip.asm')
-rw-r--r--amforth-6.5/common/words/cskip.asm37
1 files changed, 37 insertions, 0 deletions
diff --git a/amforth-6.5/common/words/cskip.asm b/amforth-6.5/common/words/cskip.asm
new file mode 100644
index 0000000..d57ff9c
--- /dev/null
+++ b/amforth-6.5/common/words/cskip.asm
@@ -0,0 +1,37 @@
+; ( addr1 n1 c -- addr2 n2 )
+; String
+; skips leading occurancies in string at addr1/n1 leaving addr2/n2 pointing to the 1st non-c character
+
+.if cpu_msp430==1
+ HEADER(XT_CSKIP,5,"cskip",DOCOLON)
+.endif
+
+.if cpu_avr8==1
+VE_CSKIP:
+ .dw $ff05
+ .db "cskip",0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_CSKIP
+XT_CSKIP:
+ .dw DO_COLON
+PFA_CSKIP:
+.endif
+ .dw XT_TO_R ; ( -- addr1 n1 )
+PFA_CSKIP1:
+ .dw XT_DUP ; ( -- addr' n' n' )
+ .dw XT_DOCONDBRANCH ; ( -- addr' n')
+ DEST(PFA_CSKIP2)
+ .dw XT_OVER ; ( -- addr' n' addr' )
+ .dw XT_CFETCH ; ( -- addr' n' c' )
+ .dw XT_R_FETCH ; ( -- addr' n' c' c )
+ .dw XT_EQUAL ; ( -- addr' n' f )
+ .dw XT_DOCONDBRANCH ; ( -- addr' n')
+ DEST(PFA_CSKIP2)
+ .dw XT_ONE
+ .dw XT_SLASHSTRING
+ .dw XT_DOBRANCH
+ DEST(PFA_CSKIP1)
+PFA_CSKIP2:
+ .dw XT_R_FROM
+ .dw XT_DROP ; ( -- addr2 n2)
+ .dw XT_EXIT