--- /dev/null
+/*
+ * (C) GraÅžvydas "notaz" Ignotas, 2011
+ *
+ * This work is licensed under the terms of GNU GPL version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+
+.bss
+.align 6 @ cacheline
+
+scratch:
+.rept 8*8*2/4
+ .word 0
+.endr
+
+.text
+.align 2
+
+.macro ldr_scratch rd
+#ifndef __PIC__
+ movw \rd, #:lower16:scratch
+ movt \rd, #:upper16:scratch
+#else
+ ldr \rd, =scratch
+#endif
+.endm
+
+@ XXX: gteMAC calc shouldn't be saturating, but it is here
+
+@ approximate gteMAC|123 flags
+@ in: rr 123 as gteMAC|123
+@ trash: nothing
+.macro do_mac_flags rr1 rr2 rr3
+ cmp \rr1, #1
+ orrvs lr, #(1<<31)|(1<<27)
+ cmp \rr2, #1
+ orrvs lr, #(1<<31)|(1<<26)
+ cmp \rr3, #1
+ orrvs lr, #(1<<31)|(1<<25)
+ cmn \rr1, #1 @ same as adds ...
+ orrvs lr, #(1<<30)
+ cmn \rr2, #1
+ orrvs lr, #(1<<29)
+ cmn \rr3, #1
+ orrvs lr, #(1<<28)
+.endm
+
+@ approximate 3x gteMACn flags
+@ in: rr 123 as 3 instances gteMACn, *flags
+@ trash: nothing
+.macro do_mac_flags3x rr1 rr2 rr3 nflags pflags
+ cmp \rr1, #1
+ cmpvc \rr2, #1
+ cmpvc \rr3, #1
+ orrvs lr, #\nflags
+ cmn \rr1, #1 @ adds ...
+ cmnvc \rr2, #1
+ cmnvc \rr3, #1
+ orrvs lr, #\pflags
+.endm
+
+@ get gteIR|123 flags from gteMAC|123
+@ in: rr 123 as gteMAC|123
+@ trash: r2,r3
+.macro do_irs_flags rr1 rr2 rr3
+ add r2, \rr1, #0x8000
+ add r3, \rr2, #0x8000
+ lsrs r2, #16
+ orrne lr, #(1<<31)|(1<<24) @ IR1/limB1
+ lsrs r3, #16
+ add r2, \rr3, #0x8000
+ orrne lr, #(1<<31)
+ orrne lr, #(1<<23) @ IR2/limB2
+ lsrs r2, #16
+ orrne lr, #(1<<22) @ IR3/limB3
+.endm
+
+
+/*
+ * RTPS/RTPT register map:
+ *
+ * q | d | c code / phase 1 phase 2 scratch
+ * 0 0 gteR1* [s16] gteMAC3 = gteMAC3 \ v=0 *
+ * 1 gteR2* gteIR1-3 = gteIR1-3 / *
+ * 1 2 gteR3* gteMAC3 = gteMAC3 \ v=1
+ * 3 * gteIR1-3 = gteIR1-3 /
+ * 2 4 gteTRX<<12 [s64] gteOFX [s64] gteMAC3 \ v=2
+ * 5 gteTRY<<12 gteOFY [s64] gteIR1-3 /
+ * 3 6 gteTRZ<<12 gteDQA [s64] min gteMAC|12 v=012
+ * 7 0 gteDQB [s64] max gteMAC|12
+ * 4 8 VXYZ(v) / gteMAC1,2 [s32] min gteIR|123
+ * 9 * / gteMAC3 max gteIR|123
+ * 5 10 gteIR1-3 [s16] gteIR1-3 v=2 quotients 12
+ * 11 0 quotient 3
+ * 6 12 gteH (adj. for cmp)
+ * 13 gteH (float for div)
+ * ... <scratch>
+ * 15 30 0
+ * 31 0
+ */
+
+@ load gteR*, gteTR* and gteH (see map above), clear q15
+@ in: r0 - context
+@ trash: r3
+.macro rtpx_preload
+ add r3, r0, #4*32
+ vldmia r3, {d0-d2} @ gteR* [16*9]
+ vmov.i32 q15, #0
+ add r3, r0, #4*(32+5)
+ vldmia r3, {d4-d5} @ gteTR*
+ vext.16 d2, d1, d2, #2 @ xxx3 -> x321
+ vext.16 d1, d0, d1, #3 @ xx32 -> x321
+ add r3, r0, #4*(32+26)
+ vld1.32 d11[0], [r3] @ gteH
+ vshll.s32 q3, d5, #12 @ gteTRZ
+ vshll.s32 q2, d4, #12 @ gteTR|XY
+ vmovl.s16 q6, d11 @ gteH
+.endm
+
+@ do RTP* gteMAC* calculation
+@ in: gteR*, gteTR* as in map, d8 - VXYZ, r12 - 0
+@ out: d8,d9 - gteMAC|123, d10 - gteIR|123
+@ trash: d16-d21
+.macro rtpx_mac
+ vmull.s16 q8, d0, d8
+ vmull.s16 q9, d1, d8
+ vmull.s16 q10, d2, d8
+ vpaddl.s32 q8, q8
+ vpaddl.s32 q9, q9
+ vpaddl.s32 q10, q10
+ vadd.s64 d16, d17 @ d16=d0.16[2]*d8.16[2], as
+ vadd.s64 d18, d19 @ d8[3]==0, so won't affect
+ vadd.s64 d20, d21 @ QC
+ vadd.s64 d16, d4
+ vadd.s64 d18, d5
+ vadd.s64 d20, d6
+ vqshrn.s64 d8, q8, #12 @ gteMAC1
+ vqshrn.s64 d18, q9, #12 @ gteMAC2
+ vqshrn.s64 d9, q10, #12 @ gteMAC3
+ vsli.u64 d8, d18, #32 @ gteMAC|12
+ vmov.32 d9[1], r12
+ vqmovn.s32 d10, q4 @ gteIR|123; losing 2 cycles?
+.endm
+
+.global gteRTPS_neon @ r0=CP2 (d,c),
+gteRTPS_neon:
+ push {r4-r6,lr}
+
+@ fmrx r4, fpscr @ vmrs? at least 40 cycle hit
+ ldr_scratch r1
+ mov r12, #0
+
+ vldmia r0, {d8} @ VXYZ(0)
+ rtpx_preload
+
+@ rtpx_mac @ slower here, faster in RTPT?
+ vmov.16 d8[3], r12 @ kill unused upper vector
+ vmull.s16 q8, d0, d8
+ vmull.s16 q9, d1, d8
+ vmull.s16 q10, d2, d8
+ vpadd.s32 d16, d16, d17
+ vpadd.s32 d17, d18, d19
+ vpadd.s32 d18, d20, d21
+ vpadal.s32 q2, q8
+ vpadal.s32 q3, q9 @ d6, d18 is slow?
+ vqshrn.s64 d8, q2, #12 @ gteMAC|12
+ vqshrn.s64 d9, q3, #12 @ gteMAC3
+
+ add r3, r0, #4*25
+ vst1.32 d8, [r3]!
+ vst1.32 d9[0], [r3] @ wb gteMAC|123
+ vqmovn.s32 d10, q4 @ gteIR|123
+
+ add r3, r0, #4*17 @ gteSZ*
+ vldmia r3, {q7} @ d14,d15 gteSZ|123x
+ vmov.i32 d28, #0xffff @ 0xffff[32]
+ vmax.s32 d11, d9, d31
+ vshr.s32 d16, d12, #1 @ | gteH/2 (adjust for cmp)
+ vmov.i32 d26, #1
+ vmin.u32 d11, d28 @ saturate to 0..0xffff limD/fSZ3
+ vmovl.s16 q9, d10 @ || expand gteIR|123
+ vshl.u32 d13, d12, #16 @ | preparing gteH
+ add r3, r0, #4*9
+ vst1.32 d18, [r3]!
+ vst1.32 d19[0], [r3]
+
+ vsli.u64 d15, d11, #32 @ new gteSZ|0123 in q7
+ vclt.u32 d16, d16, d11 @ gteH/2 < fSZ3?
+
+ add r3, r0, #4*(32+24)
+ vld1.32 d4, [r3] @ || gteOF|XY
+ add r3, r0, #4*(32+27)
+ vld1.32 d6, [r3] @ || gteDQ|AB
+
+ vand d11, d16
+ vmovl.s32 q2, d4 @ || gteOF|XY [64]
+ vmax.u32 d11, d26 @ make divisor 1 if not
+ vmovl.s32 q3, d6 @ || gteDQ|AB [64]
+ add r3, r0, #4*16 @ | gteSZ*
+ vstmia r3, {q7} @ | d14,d15 gteSZ|123x
+
+ vcvt.f32.u32 d13, d13 @ gteH (float for div)
+ vcvt.f32.u32 d11, d11 @ divisor
+
+ @ divide.. it's not worth messing with reciprocals here
+ @ just for 1 value, let's just use VFP divider here
+ vdiv.f32 s22, s26, s22
+
+ vmov.f32 d20, #0.5
+ vadd.f32 d11, d20
+ vcvt.u32.f32 d11, d11 @ quotient
+
+ @ while NEON's busy we calculate some flags on ARM
+ add r3, r0, #4*25
+ mov lr, #0 @ gteFLAG
+ ldmia r3, {r4-r6} @ gteMAC|123
+
+ vst1.32 d11, [r1, :64] @ wb quotient for flags (pre-limE)
+ vqshl.u32 d11, #15
+
+ do_mac_flags r4, r5, r6
+
+ vshr.u32 d11, #15 @ quotient (limE)
+
+ do_irs_flags r4, r5, r6
+
+ vmlal.s32 q2, d18, d11[0]@ gteOF|XY + gteIR|12 * quotient
+ add r3, r0, #4*13
+ vld1.32 d16, [r3] @ || load fS|XY12, new 01
+ vqmovn.s64 d18, q2 @ saturate to 32
+ vmull.s32 q10, d6, d11[0]@ | d20 = gteDQA * quotient
+ vqshl.s32 d19, d18, #5 @ 11bit precision
+
+ ldr r4, [r1] @ quotient
+ movs r3, r6, lsr #16
+ orrne lr, #(1<<31)
+ orrne lr, #(1<<18) @ fSZ (limD)
+
+ vst1.32 d18, [r1, :64] @ writeback fS|XY2 before limG
+
+ vshr.s32 d18, d19, #16+5@ can't vqshrn because of insn
+ vadd.s64 d20, d7 @ | gteDQB + gteDQA * quotient
+ vmovn.s32 d18, q9 @ fS|XY2 [s16]
+
+ vqmovn.s64 d20, q10 @ | gteMAC0
+ add r3, r0, #4*12
+ vst1.32 d16, [r3]! @ writeback fS|XY01
+ vst1.32 d18[0], [r3] @ ...2
+ add r3, r0, #4*24
+ vshr.s32 d21, d20, #12
+ vst1.32 d20[0], [r3] @ gteMAC0
+
+ movs r4, r4, lsr #17
+ orrne lr, #(1<<31)
+ orrne lr, #(1<<17) @ limE
+
+ vmax.s32 d21, d31
+ vmov.i32 d22, #0x1000
+ vmin.s32 d21, d22
+ add r3, r0, #4*8
+ vst1.16 d21[0], [r3] @ gteIR0
+
+ ldmia r1, {r4,r5} @ fS|XY2 before limG, after 11bit sat
+ add r2, r4, #0x400<<16
+ add r3, r5, #0x400<<16
+ lsrs r2, #16+11
+ orrne lr, #(1<<14) @ limG1
+ orrne lr, #(1<<31)
+ lsrs r3, #16+11
+ orrne lr, #(1<<13) @ limG2
+ orrne lr, #(1<<31)
+ adds r2, r4, #1
+ addvcs r3, r5, #1
+ orrvs lr, #(1<<16) @ F
+ orrvs lr, #(1<<31)
+ subs r2, r4, #1
+ subvcs r3, r5, #1
+ orrvs lr, #(1<<31)
+
+ ldr r4, [r0, #4*24] @ gteMAC0
+ orrvs lr, #(1<<15)
+
+ adds r3, r4, #1
+ orrvs lr, #(1<<16) @ F
+ orrvs lr, #(1<<31)
+ subs r2, r4, #1
+ orrvs lr, #(1<<15) @ F
+ orrvs lr, #(1<<31)
+ cmp r4, #0x1000
+ orrhi lr, #(1<<12) @ limH
+
+ str lr, [r0, #4*(32+31)] @ gteFLAG
+
+ pop {r4-r6,pc}
+ .size gteRTPS_neon, .-gteRTPS_neon
+
+
+
+.global gteRTPT_neon @ r0=CP2 (d,c),
+gteRTPT_neon:
+ push {r4-r11,lr}
+
+ ldr_scratch r1
+ mov r12, #0
+
+ rtpx_preload
+
+ vmov.i32 d22, #0x7fffffff
+ vmov.i32 d23, #0x80000000
+ mov r3, #3 @ counter
+ mov r2, r0 @ VXYZ(0)
+0:
+ vldmia r2!, {d8} @ VXYZ(v)
+ vmov.16 d8[3], r12 @ kill unused upper vector
+
+ rtpx_mac
+ vmin.s32 d22, d8 @ min gteMAC|12
+ vmax.s32 d23, d8 @ max gteMAC|12
+ subs r3, #1
+ vst1.32 {d9,d10}, [r1, :128]!
+ bgt 0b
+
+ vst1.32 {d22,d23}, [r1, :128]! @ min/max gteMAC|12, for flags
+
+ @ - phase2 -
+ sub r1, r1, #8*2*4
+ vldmia r1, {d0-d3} @ note: d4,d5 is for gteOF|XY
+
+ vmov d20, d0 @ gteMAC3 v=0
+ vmin.s16 d24, d1, d3 @ | find min IR
+ vshr.s32 d22, d12, #1 @ || gteH/2 (adjust for cmp)
+ vmax.s16 d25, d1, d3 @ | .. also max, for flag gen
+ vsli.u64 d20, d2, #32 @ gteMAC3 v=1
+ vmov d21, d9 @ ... v=2
+
+ vmov.i32 q14, #0xffff @ 0xffff[32]
+ vmax.s32 q10, q15
+ vmov.i32 q13, #1
+ vdup.32 q11, d22[0] @ gteH/2
+ vmin.u32 q10, q14 @ saturate to 0..0xffff limD/fSZ(v)
+ vmin.s16 d24, d10 @ | find min/max IR
+ vmax.s16 d25, d10 @ |
+
+ add r3, r0, #4*19 @ ||
+ vld1.32 d14[0], [r3] @ || gteSZ3
+
+ vclt.u32 q11, q11, q10 @ gteH/2 < fSZ(v)?
+ add r3, r0, #4*17
+ vst1.32 d20, [r3]! @ | writeback fSZ(v)
+ vand q11, q10, q11
+ vst1.32 d21[0], [r3] @ |
+ vmax.u32 q10, q11, q13 @ make divisor 1 if not
+ add r3, r1, #8*8
+ vstmia r3, {q12} @ min/max IR for flags
+ vcvt.f32.u32 q10, q10
+ vshl.u32 d13, d12, #16 @ | preparing gteH
+
+ @ while NEON's busy we calculate some flags on ARM
+ add r2, r1, #8*2*3
+ mov lr, #0 @ gteFLAG
+ ldmia r2, {r4-r7} @ min/max gteMAC|12
+ subs r2, r4, #1
+ orrvs lr, #(1<<31)|(1<<27)
+ subs r3, r5, #1
+ orrvs lr, #(1<<31)|(1<<26)
+ adds r2, r6, #1
+ orrvs lr, #(1<<30)
+ adds r3, r7, #1
+ orrvs lr, #(1<<29)
+ ldr r4, [r1, #0] @ gteMAC3 v=0
+ ldr r5, [r1, #8*2] @ ... v=1
+ ldr r6, [r1, #8*4] @ ... v=2
+
+ add r3, r0, #4*(32+24)
+ vld1.32 d4, [r3] @ || gteOF|XY
+ add r3, r0, #4*(32+27)
+ vld1.32 d6, [r3] @ || gteDQ|AB
+
+ @ divide
+.if 1
+ vrecpe.f32 q11, q10 @ inv
+ vmovl.s32 q2, d4 @ || gteOF|XY [64]
+ vmovl.s32 q3, d6 @ || gteDQ|AB [64]
+ vrecps.f32 q12, q10, q11 @ step
+ vcvt.f32.u32 d13, d13 @ | gteH (float for div)
+ vmov.f32 q8, #0.5 @ |||
+ vmul.f32 q11, q12, q11 @ better inv
+ add r3, r0, #4*16
+ vst1.32 d14[0], [r3] @ gteSZ0 = gteSZ3
+ vdup.32 q13, d13[0] @ |
+@ vrecps.f32 q12, q10, q11 @ step
+@ vmul.f32 q11, q12, q11 @ better inv
+ vmul.f32 q10, q13, q11 @ result
+.else
+ vmov.f32 q8, #0.5 @ |||
+ vmovl.s32 q2, d4 @ || gteOF|XY [64]
+ vmovl.s32 q3, d6 @ || gteDQ|AB [64]
+ vcvt.f32.u32 d13, d13 @ | gteH (float for div)
+ vdup.32 q13, d13[0] @ |
+ add r3, r0, #4*16
+ vst1.32 d14[0], [r3] @ gteSZ0 = gteSZ3
+
+ vpush {q0}
+ vmov q0, q10 @ to test against C code
+ vdiv.f32 s0, s26, s0
+ vdiv.f32 s1, s26, s1
+ vdiv.f32 s2, s26, s2
+ vmov q10, q0
+ vpop {q0}
+.endif
+
+ do_mac_flags3x r4, r5, r6, (1<<31)|(1<<25), (1<<27) @ MAC3
+ orr r7, r4, r5
+ add r4, r1, #8*8
+ orr r3, r7, r6
+ ldmia r4, {r7,r8,r10,r11} @ min/max IR
+
+ movs r3, r3, lsr #16
+ orrne lr, #(1<<31)
+ orrne lr, #(1<<18) @ fSZ (limD)
+
+ vadd.f32 q10, q8 @ adjust for vcvt rounding mode
+ vcvt.u32.f32 q8, q10
+ vmovl.s16 q9, d1 @ expand gteIR|12 v=0
+ vmovl.s16 q10, d3 @ expand gteIR|12 v=1
+ add r6, r1, #8*10
+ vstmia r6, {q8} @ wb quotients for flags (pre-limE)
+ vqshl.u32 q8, #15
+ vmovl.s16 q11, d10 @ expand gteIR|12 v=2
+ vshr.u32 q8, #15 @ quotients (limE)
+ vdup.32 d24, d16[0]
+ vdup.32 d25, d16[1]
+ vdup.32 d26, d17[0] @ quotient (dup)
+
+ @ flags for minIR012 (r7,r8), maxIR012 (r10,r11)
+ mov r4, #0x10000
+ cmp r7, #1<<16
+ cmnvc r10, #1<<16
+ orrvs lr, #(1<<31)
+ orrvs lr, #(1<<23) @ IR2/limB2
+ rsbs r2, r4, r7, lsl #16
+ cmnvc r4, r10, lsl #16
+ orrvs lr, #(1<<31)|(1<<24) @ IR1/limB1
+ rsbs r2, r4, r8, lsl #16
+ cmnvc r4, r11, lsl #16
+ orrvs lr, #(1<<22) @ IR3/limB3
+
+ vmull.s32 q9, d18, d24 @ gteIR|12 * quotient v=0
+ vmull.s32 q10, d20, d25 @ ... v=1
+ vmull.s32 q11, d22, d26 @ ... v=2
+ vadd.s64 q9, q2 @ gteOF|XY + gteIR|12 * quotient
+ vadd.s64 q10, q2 @ ... v=1
+ vadd.s64 q11, q2 @ ... v=2
+ vqmovn.s64 d18, q9 @ saturate to 32 v=0
+ vqmovn.s64 d19, q10 @ ... v=1
+ vqmovn.s64 d20, q11 @ ... v=2
+ vmin.s32 d14, d18, d19 @ || find min/max fS|XY(v) [32]
+ vmax.s32 d15, d18, d19 @ || for flags
+ vmin.s32 d14, d20
+ vmax.s32 d15, d20
+ vqshl.s32 q11, q9, #5 @ 11bit precision, v=0,1
+ vqshl.s32 d24, d20, #5 @ ... v=2
+ vmull.s32 q13, d6, d17 @ | gteDQA * quotient v=2
+ vpmin.s32 d16, d14, d31 @ || also find min/max in pair
+ vpmax.s32 d17, d15, d31 @ ||
+ vshr.s32 q11, #16+5 @ can't vqshrn because of insn
+ vshr.s32 d24, #16+5 @ encoding doesn't allow 21 :(
+ vsli.u64 d16, d17, #32 @ || pack in-pair min/max
+ vadd.s64 d26, d7 @ | gteDQB + gteDQA * quotient
+ vmovn.s32 d12, q11 @ fS|XY(v) [s16] v=0,1
+ vmovn.s32 d13, q12 @ 3
+ vstmia r1, {d14-d16} @ || other cacheline than quotients
+ add r3, r0, #4*12
+ vst1.32 d12, [r3]! @ writeback fS|XY v=0,1
+ vst1.32 d13[0], [r3]
+
+ vqmovn.s64 d26, q13 @ | gteMAC0
+ vmovl.u16 q5, d10 @ expand gteIR|123 v=2
+
+ vmov.i32 d13, #0x1000
+ vshr.s32 d12, d26, #12
+
+ add r3, r0, #4*24
+ vst1.32 d26[0], [r3]! @ gteMAC0
+ vmax.s32 d12, d30
+ vst1.32 d8, [r3]! @ gteMAC123 (last iteration)
+ vst1.32 d9[0], [r3]
+
+ vmin.s32 d12, d13 @ | gteIR0
+
+ ldmia r6, {r4-r6} @ quotients
+ orr r4, r5
+ orr r4, r6
+ add r3, r0, #4*8
+ movs r4, r4, lsr #17
+
+ vst1.32 d12[0], [r3]! @ gteIR0
+ vst1.32 d10, [r3]! @ gteIR12
+ vst1.32 d11[0], [r3] @ ..3
+
+ @ ~23 cycles
+ orrne lr, #(1<<31) @ limE
+ orrne lr, #(1<<17) @ limE
+ ldmia r1, {r4-r9}
+ add r2, r4, #0x400<<16 @ min fSX
+ add r3, r6, #0x400<<16 @ max fSX
+ lsrs r2, #16+11
+ lsreqs r3, #16+11
+ orrne lr, #(1<<31) @ limG1
+ orrne lr, #(1<<14)
+ add r2, r5, #0x400<<16 @ min fSY
+ add r3, r7, #0x400<<16 @ max fSY
+ lsrs r2, #16+11
+ lsreqs r3, #16+11
+ orrne lr, #(1<<31) @ limG2
+ orrne lr, #(1<<13)
+ adds r2, r9, #1
+ orrvs lr, #(1<<16) @ F (31 already done by above)
+ subs r3, r8, #1
+
+ ldr r4, [r0, #4*24] @ gteMAC0
+ orrvs lr, #(1<<15)
+
+ adds r3, r4, #1
+ orrvs lr, #(1<<16)
+ orrvs lr, #(1<<31) @ F
+ subs r2, r4, #1
+ orrvs lr, #(1<<15)
+ orrvs lr, #(1<<31) @ F
+ cmp r4, #0x1000
+ orrhi lr, #(1<<12) @ limH
+
+ str lr, [r0, #4*(32+31)] @ gteFLAG
+
+ pop {r4-r11,pc}
+ .size gteRTPT_neon, .-gteRTPT_neon
+
+
+
+@ note: non-std calling convention used
+@ r0 = CP2 (d,c) (must preserve)
+@ r1 = op
+@ r4,r5 = VXYZ(v) packed
+@ r6 = &MX11(mx)
+@ r7 = &CV1(cv)
+.global gteMVMVA_part_neon
+gteMVMVA_part_neon:
+ uxth r5, r5
+ vmov.32 d8[0], r4
+ vmov.32 d8[1], r5 @ VXYZ(v)
+ vldmia r6, {d0-d2} @ MXxy/gteR* [16*9]
+ vldmia r7, {d4-d5} @ CVx/gteTR*
+
+ vmov.i32 q15, #0
+ vext.16 d2, d1, d2, #2 @ xxx3 -> x321
+ vext.16 d1, d0, d1, #3 @ xx32 -> x321
+ vshll.s32 q3, d5, #12 @ gteTRZ/CV3
+ vshll.s32 q2, d4, #12 @ gteTR|XY/CV12
+
+ vmull.s16 q8, d0, d8
+ vmull.s16 q9, d1, d8
+ vmull.s16 q10, d2, d8
+ vpadd.s32 d16, d16, d17
+ vpadd.s32 d17, d18, d19
+ vpadd.s32 d18, d20, d21
+ vpadal.s32 q2, q8
+ vpadal.s32 q3, q9
+ tst r1, #1<<19
+ beq 0f
+ vshr.s64 q2, q2, #12
+ vshr.s64 q3, q3, #12
+0:
+ vqmovn.s64 d8, q2 @ gteMAC|12
+ vqmovn.s64 d9, q3 @ gteMAC3
+
+ tst r1, #1<<10
+ add r3, r0, #4*25
+ vqmovn.s32 d10, q4 @ gteIR|123
+ vst1.32 d8, [r3]!
+ vst1.32 d9[0], [r3] @ wb gteMAC|123
+
+ beq 0f
+ vmax.s16 d10, d31
+0:
+ vmovl.s16 q9, d10 @ expand gteIR|123
+ add r3, r0, #4*9
+ vst1.32 d18, [r3]!
+ vst1.32 d19[0], [r3]
+ bx lr
+ .size gteMVMVA_part_neon, .-gteMVMVA_part_neon
+
+
+@ get flags after gteMVMVA_part_neon operation
+.global gteMACtoIR_flags_neon @ r0=CP2 (d,c), r1=lm
+gteMACtoIR_flags_neon:
+ push {r4,r5,lr}
+ tst r1, r1 @ lm
+ mov lr, #0 @ gteFLAG
+ mov r2, #0
+ mov r12, #15
+ moveq r2, #0x8000 @ adj
+ moveq r12, #16 @ shift
+
+ add r3, r0, #4*25
+ ldmia r3, {r3-r5} @ gteMAC|123
+
+ do_mac_flags r3, r4, r5
+
+ add r3, r2
+ add r4, r2
+ add r5, r2
+ asrs r3, r12
+ orrne lr, #(1<<31)|(1<<24) @ IR1/limB1
+ asrs r4, r12
+ orrne lr, #(1<<31)
+ orrne lr, #(1<<23) @ IR2/limB2
+ asrs r5, r12
+ orrne lr, #(1<<22) @ IR3/limB3
+ str lr, [r0, #4*(32+31)] @ gteFLAG
+
+ pop {r4,r5,pc}
+ .size gteMACtoIR_flags_neon, .-gteMACtoIR_flags_neon
+
+
+
+@ vim:filetype=armasm
notaz.gp2x.de / pcsx_rearmed.git / blobdiff