sound, improve ym2612 accuracy (arm ASM bugfix)

diff --git a/pico/sound/ym2612_arm.S b/pico/sound/ym2612_arm.S
index 178972d..52611fc 100644 (file)
--- a/pico/sound/ym2612_arm.S
+++ b/pico/sound/ym2612_arm.S
@@ -712,15 +712,10 @@ crl_loop:
     subs    r8, r8, #(1<<EG_SH)
     blt     crl_smp_loop_end
 
-
-    @ r12=lfo_ampm[31:16], r1=lfo_cnt_old, r2=lfo_cnt
-    advance_lfo_m
-
 crl_smp_loop:
     tst     r12, #8              @ lfo?
     beq     lfo_done
 
-
     ldr     r2, [lr, #0x34]      @ lfo_inc
     ldr     r1, [lr, #0x30]      @ lfo_cnt
 
@@ -888,6 +883,7 @@ crl_algo_done:
 
 crl_smp_loop_end:
     add     r8, r8, #(1<<EG_SH)
+
     @ -- WRITE SAMPLE --
     tst     r0, r0
     beq     ctl_sample_skip