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20 - relative addressing for jumps

This commit is contained in:
Kartik K. Agaram 2014-07-11 22:28:51 -07:00
parent 368e76cdf6
commit d17e8291ef
2 changed files with 7 additions and 7 deletions
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4
mu.arc
View File

@ -69,13 +69,13 @@
(= (memory* oarg.0.1)
(type* (otypes arg.0)))
jmp
(do (= pc (- arg.0.1 1)) ; because continue still increments (bug)
(do (= pc (+ pc arg.0.1)) ; relies on continue still incrementing (bug)
;? (prn "jumping to " pc)
(continue))
jifz
(when (is 0 (memory* arg.0.1))
;? (prn "jumping to " arg.1.1)
(= pc (- arg.1.1 1)) ; because continue still increments (bug)
(= pc (+ pc arg.1.1)) ; relies on continue still incrementing (bug)
(continue))
reply
(do (= result arg)

10
mu.arc.t
View File

@ -166,7 +166,7 @@
(add-fns
'((main
((integer 1) <- loadi 8)
(jmp (location 3))
(jmp (offset 1))
((integer 2) <- loadi 3)
(reply))))
(run function*!main)
@ -178,7 +178,7 @@
(add-fns
'((main
((integer 1) <- loadi 8)
(jmp (location 3))
(jmp (offset 1))
((integer 2) <- loadi 3)
(reply)
((integer 3) <- loadi 34))))
@ -191,7 +191,7 @@
(add-fns
'((main
((integer 1) <- loadi 0)
(jifz (integer 1) (location 3))
(jifz (integer 1) (offset 1))
((integer 2) <- loadi 3)
(reply)
((integer 3) <- loadi 34))))
@ -204,7 +204,7 @@
(add-fns
'((main
((integer 1) <- loadi 1)
(jifz (integer 1) (location 3))
(jifz (integer 1) (offset 1))
((integer 2) <- loadi 3)
(reply)
((integer 3) <- loadi 34))))
@ -219,7 +219,7 @@
((integer 4) <- otype 0)
((integer 5) <- loadi 0) ; type index corresponding to 'integer'
((integer 6) <- sub (integer 4) (integer 5))
(jifz (integer 6) (location 5))
(jifz (integer 6) (offset 1))
(reply)
((integer 7) <- arg)
((integer 8) <- arg)