X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=assembler%2Ftest.asm;h=cea8724e682606a6b46971ffe21a01007df8a3d3;hb=1907804cab2799ae52ee09adffb64ec37fef7372;hp=ecbc2732179a202efa7e275bf3924d038d261333;hpb=3bd4f014e1ae2af49b2cbdd94a86c07559aacbce;p=b43-tools.git

diff --git a/assembler/test.asm b/assembler/test.asm
index ecbc273..cea8724 100644
--- a/assembler/test.asm
+++ b/assembler/test.asm
@@ -1,14 +1,13 @@
 /* This is a bcm43xx microcode assembly example.
- *
- * In this example file, r0 and r1 are always input
- * registers and r2 is output.
- * For input we can always have constant values or (one) memory
- * operand instead of the input registers shown here.
  *
  * Registers:
- *	GPRs:			r0 - r63
+ *	GPRs:			r0 - r63	(General Purpose Register)
  *	Offset Registers:	off0 - off5
- *	SPRs:			spr000
+ *	SPRs:			spr000		(Special Purpose Register)
+ *
+ * SPRs map to the driver-side IHR registers.
+ * An SPR offset is converted to an IHR offset by the following
+ * calculation:  IHR = (SPR + 0x400) * 2
  *
  * To access memory, two methods can be used. Examples follow.
  * Direct linear:
@@ -35,7 +34,14 @@
 
 .text
 
+	/* Inline assertion inside of a complex immediate.
+	 * The %assert() expression will always return zero. */
+	mov	(1 + (%assert(1 == ((1 + 2) - 2)))), r0
+
 label:
+	/* MUL instruction */
+	mul	r0,r1,r2	/* mul, r2 := msb, spr6d := lsb */
+
 	/* ADD instructions */
 	add	r0,r1,r2	/* add */
 	add.	r0,r1,r2	/* add, set carry */
@@ -86,6 +92,10 @@ testlabel:
 	jge	r0,r1,label	/* jump if greater or equal */
 	jg	r0,r1,label	/* jump if greater */
 	jle	r0,r1,label	/* jump if less or equal */
+	jdn	r0,r1,label	/* jump if difference is negative */
+	jdpz	r0,r1,label	/* jump if difference is non negative */
+	jdp	r0,r1,label	/* jump if difference is positive */
+	jdnz	r0,r1,label	/* jump if difference is non positive */
 
 	jzx	7,8,r0,r1,label	/* Jump if zero after shift and mask */
 	jnzx	7,8,r0,r1,label	/* Jump if nonzero after shift and mask */
@@ -190,6 +200,7 @@ function_b:
 	radio	0x1234, 0xABC			/* Write 0x1234 to RADIO register 0xABC */
 	shm16	0x1234, 0x0001, 0x0002		/* Write 0x1234 to SHM routing 0x0001, register 0x0002 */
 	shm32	0x12345678, 0x0001, 0x0002	/* Write 0x12345678 to SHM routing 0x0001, register 0x0002 */
+	tram	0x12345678, 0x1234		/* Write 0x12345678 to Template Ram offset 0x1234 */
 
 
 // vim: syntax=b43 ts=8