diff --git a/Manual.md b/Manual.md
index bc6ef1b..7191f5b 100644
--- a/Manual.md
+++ b/Manual.md
@@ -102,7 +102,7 @@ Allocates new integer vector uniforms (or arrays of uniforms) and creates aliase
 
 ### .bool
 ```
-.fvec unifName1, unifName2[size], unifName3, ...
+.bool unifName1, unifName2[size], unifName3, ...
 ```
 Allocates new boolean uniforms (or arrays of uniforms) and creates aliases for them that point to the allocated registers. Example:
 
@@ -189,14 +189,14 @@ Syntax                            | Description
 `callu bReg, procName`            |
 `ifu bReg`                        |
 `jmpu bReg, labelName`            |
-`lrp rDest, rSrcF, rSrc2, rSrc3`  |
-`mad rDest, rSrcF, rSrc2, rSrc3`  |
+`madi rDest, rSrc1, rSrc2, rSrc1` |
+`mad rDest, rSrc1, rSrc1, rSrc2`  |
 
 ### Description of operands
 
 - `rDest`: Represents a destination operand (register).
 - `rSrc1`: Represents a so-called SRC1 source operand (register), which allows accessing floating-point vector uniforms and relative addressing.
-- `rSrc2`, `rSrc3` and `rSrcF`: They represent other source operands (registers), which are limited to input and scratch registers.
+- `rSrc2`: Represents a so-called SRC2 source operand (register), which is limited to input and scratch registers.
 - `iReg`: Represents an integer vector uniform source operand.
 - `bReg`: Represents a boolean uniform source operand.
 - `procName`: Represents the name of a procedure.
diff --git a/source/maestro_opcodes.h b/source/maestro_opcodes.h
index 1884879..47201d4 100644
--- a/source/maestro_opcodes.h
+++ b/source/maestro_opcodes.h
@@ -52,6 +52,6 @@ enum
 	MAESTRO_CMP, // only the upper 5 bits are used for the opcode
 
 	// Only the upper 3 bits are used for the following opcodes
-	MAESTRO_LRP = 0x30, 
+	MAESTRO_MADI = 0x30,
 	MAESTRO_MAD = 0x38,
 };
diff --git a/source/picasso_assembler.cpp b/source/picasso_assembler.cpp
index 1d1c8cc..2a7c861 100644
--- a/source/picasso_assembler.cpp
+++ b/source/picasso_assembler.cpp
@@ -760,6 +760,33 @@ DEF_COMMAND(format5)
 	return 0;
 }
 
+DEF_COMMAND(format5i)
+{
+	NEXT_ARG(destName);
+	NEXT_ARG(src1Name);
+	NEXT_ARG(src2Name);
+	NEXT_ARG(src3Name);
+	ENSURE_NO_MORE_ARGS();
+
+	ARG_TO_DEST_REG(rDest, destName);
+	ARG_TO_SRC1_REG(rSrc1, src1Name);
+	ARG_TO_SRC2_REG(rSrc2, src2Name);
+	ARG_TO_SRC1_REG(rSrc3, src3Name);
+
+	int opdesc = 0;
+	safe_call(findOrAddOpdesc(opdesc, OPDESC_MAKE(maskFromSwizzling(rDestSw), rSrc1Sw, rSrc2Sw, rSrc3Sw), OPDESC_MASK_D123));
+
+	if (opdesc >= 32)
+		return throwError("opdesc allocation error\n");
+
+#ifdef DEBUG
+	printf("%s:%02X d%02X, d%02X, d%02X, d%02X (0x%X)\n", cmdName, opcode, rDest, rSrc1, rSrc2, rSrc3, opdesc);
+#endif
+	BUF.push_back(FMT_OPCODE(opcode) | opdesc | (rSrc3<<5) | (rSrc2<<12) | (rSrc1<<17) | (rDest<<24));
+
+	return 0;
+}
+
 DEF_COMMAND(formatmova)
 {
 	NEXT_ARG(src1Name);
@@ -979,7 +1006,7 @@ static const cmdTableType cmdTable[] =
 	DEC_COMMAND(IFU, format3),
 	DEC_COMMAND(JMPU, format3),
 
-	DEC_COMMAND(LRP, format5),
+	DEC_COMMAND(MADI, format5i),
 	DEC_COMMAND(MAD, format5),
 
 	{ NULL, NULL },