added cx16.vload() (like the VLOAD basic instruction)

2025-07-09 10:24:10 +00:00 · 2021-03-20 02:39:53 +01:00
parent 3e286dd14c
commit ca868ae19e
5 changed files with 130 additions and 66 deletions
--- a/compiler/res/prog8lib/prog8_lib.asm
+++ b/compiler/res/prog8lib/prog8_lib.asm
@ -1072,3 +1072,14 @@ sign_extend_AY_byte	.proc
 		rts
 		.pend

+strlen          .proc
+        ; -- returns the number of bytes in the string in AY, in Y.
+		sta  P8ZP_SCRATCH_W1
+		sty  P8ZP_SCRATCH_W1+1
+		ldy  #0
+-		lda  (P8ZP_SCRATCH_W1),y
+		beq  +
+		iny
+		bne  -
+		rts
+		.pend