clarify PicoDrive's license

[picodrive.git] / pico / 32x / draw_arm.s

diff --git a/pico/32x/draw_arm.s b/pico/32x/draw_arm.s
index ccb6d49..ad50ff3 100644 (file)
--- a/pico/32x/draw_arm.s
+++ b/pico/32x/draw_arm.s
@@ -1,4 +1,10 @@
-@ vim:filetype=armasm
+@*
+@* PicoDrive
+@* (C) notaz, 2010
+@*
+@* This work is licensed under the terms of MAME license.
+@* See COPYING file in the top-level directory.
+@*
 
 .extern Pico32x
 .extern PicoDraw2FB
@@ -69,7 +75,9 @@ Pico32xNativePal:
     ldr     r10,[r10, #0x40] @ Pico32x.vdp_regs[0]
     ldr     r11,[r11]
     ldr     r9, =HighPal     @ palmd
-    add     r11,r11,#(328*8) @ r11 = pmd: md data
+    and     r4, r2, #0xff
+    mov     r5, #328
+    mla     r11,r4,r5,r11    @ r11 = pmd = PicoDraw2FB + offs*328: md data
     tst     r10,#P32XV_PRI
     moveq   r10,#0
     movne   r10,#0x8000      @ r10 = inv_bit
@@ -135,7 +143,9 @@ Pico32xNativePal:
     ldr     r11,[r11]
     ldr     r10,[r10]
     ldr     r9, =HighPal     @ palmd
-    add     r11,r11,#(328*8) @ r11 = pmd: md data
+    and     r4, r2, #0xff
+    mov     r5, #328
+    mla     r11,r4,r5,r11    @ r11 = pmd = PicoDraw2FB + offs*328: md data
     call_scan_prep \call_scan
 
     mov     r4, #0           @ line
@@ -290,7 +300,9 @@ Pico32xNativePal:
     ldr     r11,[r11]
     ldr     r10,[r10]
     ldr     r9, =HighPal     @ palmd
-    add     r11,r11,#(328*8) @ r11 = pmd: md data
+    and     r4, r2, #0xff
+    mov     r5, #328
+    mla     r11,r4,r5,r11    @ r11 = pmd = PicoDraw2FB + offs*328: md data
     call_scan_prep \call_scan
 
     mov     r4, #0           @ line
@@ -355,3 +367,4 @@ make_do_loop_rl do_loop_rl_md,      0, 1
 make_do_loop_rl do_loop_rl_scan,    1, 0
 make_do_loop_rl do_loop_rl_scan_md, 1, 1
 
+@ vim:filetype=armasm