diff options
Diffstat (limited to 'Tremolo/floor1ARM.s')
-rw-r--r-- | Tremolo/floor1ARM.s | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/Tremolo/floor1ARM.s b/Tremolo/floor1ARM.s deleted file mode 100644 index 8ec201e..0000000 --- a/Tremolo/floor1ARM.s +++ /dev/null @@ -1,36 +0,0 @@ -@ Tremolo library -@ Copyright (C) 2009 Robin Watts for Pinknoise Productions Ltd - - .text - - .global render_lineARM - -render_lineARM: - @ r0 = n - @ r1 = d - @ r2 = floor - @ r3 = base - @ <> = err - @ <> = adx - @ <> = ady - MOV r12,r13 - STMFD r13!,{r4-r6,r11,r14} - LDMFD r12,{r11,r12,r14} @ r11 = err - @ r12 = adx - @ r14 = ady -rl_loop: - LDR r4,[r1] @ r4 = *d - LDR r5,[r2],r3,LSL #2 @ r5 = *floor r2 = floor+base - SUBS r11,r11,r14 @ err -= ady - ADDLT r11,r11,r12 @ if (err < 0) err+=adx - SMULL r6, r5, r4, r5 @ (r6,r5) = *d * *floor - ADDLT r2, r2, #4 @ floor+=1 - MOVS r6, r6, LSR #15 - ADC r5, r6, r5, LSL #17 @ r5 = MULT31_SHIFT15 - STR r5,[r1],#4 - SUBS r0, r0, #1 - BGT rl_loop - - LDMFD r13!,{r4-r6,r11,PC} - - @ END |