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changeset 42:4bb7b723e5b7

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Added pass2 code generation to lwasm_emit()
author lost
date Sun, 04 Jan 2009 06:13:13 +0000
parents 7eafdb3a8074
children b33eca135258
files src/lwasm.c src/lwasm.h src/pass1.c
diffstat 3 files changed, 14 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/lwasm.c	Sat Jan 03 19:50:30 2009 +0000
+++ b/src/lwasm.c	Sun Jan 04 06:13:13 2009 +0000
@@ -67,7 +67,14 @@
 	if (as -> passnum == 1)
 		return;
 
-	fprintf(stderr, "FIXME: trying to emit code in pass 2 but not implemented.\n");		
+
+	if (l -> codelen >= l -> codesize)
+	{
+		l -> bytes = realloc(l -> bytes, l -> codesize + 16);
+		l -> codesize += 16;
+	}
+	l -> bytes[l -> codelen] = b & 0xff;
+	l -> codelen += 1;
 }
 
 void lwasm_emitop(asmstate_t *as, lwasm_line_t *l, int o)
--- a/src/lwasm.h	Sat Jan 03 19:50:30 2009 +0000
+++ b/src/lwasm.h	Sun Jan 04 06:13:13 2009 +0000
@@ -50,6 +50,9 @@
 	lwasm_error_t *err;	// error messages
 	int fsize;			// forced size (0 = no forced size)
 	char *sym;			// scratch area to record the presence of a symbol
+	unsigned char *bytes;	// actual bytes emitted
+	int codelen;		// number of bytes emitted
+	int codesize;		// the size of the code buffer
 };
 
 // for keeping track of symbols
--- a/src/pass1.c	Sat Jan 03 19:50:30 2009 +0000
+++ b/src/pass1.c	Sun Jan 04 06:13:13 2009 +0000
@@ -136,6 +136,9 @@
 			nl -> err = NULL;
 			nl -> fsize = 0;
 			nl -> sym = NULL;
+			nl -> bytes = NULL;
+			nl -> codelen = 0;
+			nl -> codesize = 0;
 			if (as -> linestail)
 				as -> linestail -> next = nl;
 			else