Added xbus ucodes to makefile list

Makefile

@@ -6,8 +6,10 @@ NoN ?= 0
 
 # Selects which version of a given microcode to build:
 # F3DEX2:
-#  2.08  (Banjo-Tooie, the best game on the N64)
+#  2.08  (Banjo-Tooie)
+#  2.08_XBUS (Power Rangers)
 #  2.07  (Rocket: Robot on Wheels)
+#  2.07_XBUS (Lode Runner 3-D)
 #  2.04H (Kirby 64, Smash 64)
 #  2.08PL (Paper Mario, F3DEX2.08 with point lighting added)
 #  

f3dex2.s

@@ -596,7 +596,7 @@ wait_dpc_start_valid:
     beqz $12, f3dzex_xbus_0000111C
      sw $zero, OSTask + OSTask_flags
     j load_overlay1_init
-     lw taskDataPtr, OS_YIELD_DATA_SIZE_FIFO - 8
+     lw taskDataPtr, OS_YIELD_DATA_SIZE_TOTAL - 8
 .fill 16 * 4 // Bunch of nops here to make it the same size as the fifo code.
 f3dzex_xbus_0000111C:
 .endif
@@ -1718,7 +1718,7 @@ task_yield:
     jal     dma_read_write
      li     $19, OS_YIELD_DATA_SIZE - 1
     li      status, SP_SET_SIG1 | SP_SET_SIG2 // yielded and task done signals
-    addiu   $24, $24, OS_YIELD_DATA_SIZE_FIFO - 8
+    addiu   $24, $24, OS_YIELD_DATA_SIZE_TOTAL - 8
     li      $20, -0x76E0 // ???
     li      $19, 7
 .endif

rsp/gbi.inc

@@ -1,9 +1,11 @@
 // GBI: Graphics Binary Interface
 
+// XBUS doesn't use the full yield data buffer, but does reference the full size,
+// so a definition for both sizes needs to exist.
+OS_YIELD_DATA_SIZE_TOTAL equ 0xC00
 .if UCODE_METHOD == METHOD_FIFO
 OS_YIELD_DATA_SIZE equ 0xC00
 .else // UCODE_METHOD == METHOD_XBUS
-OS_YIELD_DATA_SIZE_FIFO equ 0xC00
 OS_YIELD_DATA_SIZE equ 0x920
 .endif