From 67d25d837ac55f28a366c0a3b262e439a6e75fc3 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Sat, 19 Aug 2017 12:15:28 +0200 Subject: Add AmForth --- amforth-6.5/avr8/words/minus.asm | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 amforth-6.5/avr8/words/minus.asm (limited to 'amforth-6.5/avr8/words/minus.asm') diff --git a/amforth-6.5/avr8/words/minus.asm b/amforth-6.5/avr8/words/minus.asm new file mode 100644 index 0000000..e1922ce --- /dev/null +++ b/amforth-6.5/avr8/words/minus.asm @@ -0,0 +1,17 @@ +; ( n1|u1 n2|u2 -- n3|u3 ) +; Arithmetics +; subtract n2 from n1 +VE_MINUS: + .dw $ff01 + .db "-",0 + .dw VE_HEAD + .set VE_HEAD = VE_MINUS +XT_MINUS: + .dw PFA_MINUS +PFA_MINUS: + ld temp0, Y+ + ld temp1, Y+ + sub temp0, tosl + sbc temp1, tosh + movw tosl, temp0 + jmp_ DO_NEXT -- cgit v1.2.3