From a2b31532a5ab77cf13fc50ddc28c303949ad1207 Mon Sep 17 00:00:00 2001 From: Doni Pracner Date: Sun, 19 Jan 2014 22:22:25 +0100 Subject: [PATCH] mjc2wsl - array support - newarray, aload, baload, astore, bastore --- src/mjc2wsl.java | 41 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 36 insertions(+), 5 deletions(-) diff --git a/src/mjc2wsl.java b/src/mjc2wsl.java index 10e9c2c..3a97270 100644 --- a/src/mjc2wsl.java +++ b/src/mjc2wsl.java @@ -120,6 +120,7 @@ public class mjc2wsl{ ret.append("VAR < tempa := 0, tempb := 0, tempres :=0,\n\t"); ret.append("mjvm_locals := ARRAY(1,0), "); ret.append("\n\tmjvm_statics := ARRAY("+numWords+",0), "); + ret.append("\n\tmjvm_arrays := < >, "); ret.append("\n mjvm_estack := < >, mjvm_mstack := < >, "); ret.append("\n mjvm_fp := 0, mjvm_sp := 0,"); ret.append("\n t_e_m_p := 0 > :"); @@ -215,6 +216,14 @@ public class mjc2wsl{ return "mjvm_statics[" + (i+1)+"]"; } + private String genArray(int i){ + return "mjvm_arrays["+ i +"]"; + } + + private String genArray(String i){ + return "mjvm_arrays["+ i+"]"; + } + /** * Creates a WSL comment with care to quote chars. */ @@ -423,15 +432,37 @@ public class mjc2wsl{ break; } //TODO new_ newarray - case new_ : - get();//needs a short, but a byte will be taken bellow as well - case newarray :{ + case new_ :{ prl(createComment("memory allocation not processed properly", C_ERR)); message("memory allocation not processed properly", M_ERR); - get(); + get2(); + break; + } + case newarray :{ + get();// 0 - bytes, 1 - words; ignore for now + //TODO take into consideration 0/1 + prl(getTop()); + prl("mjvm_arrays := mjvm_arrays ++ < ARRAY(tempa,0) >;"); + prl(cmdToEStack("LENGTH(mjvm_arrays)")); break; } - //TODO aload, asstore, baload, bastore + + case aload: + case baload:{ + prl(getTopTwo()); + prl(cmdToEStack(genArray("tempb")+"[tempa+1]")); + break; + } + case astore: + case bastore:{ + prl(cmdFromEStack("tempres")); + prl(getTopTwo()); + //we need to use a temparray as a pointer, WSL + //otherwise tries to access it as a list of lists and fails + prl("VAR < tempArray := "+genArray("tempb")+" > :"); + prl("tempArray[tempa+1]:=tempres ENDVAR;"); + break; + } //TODO arraylength //TODO dup, dup2 -- 2.25.1