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eden/docs/NvidiaGpu.md
lizzie 1e06c6f752 [docs] troubleshoot section, release policies, gpu documentation (#3078) 
- gpu docs
- user guide stuff
- removed unused named.svg
- added link to ES-DE frontend stuff from 3rdparty
 Signed-off-by: lizzie lizzie@eden-emu.dev

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3078
Reviewed-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
2025-12-12 18:36:19 +01:00

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# The NVIDIA SM86 (Maxwell) GPU - Instruction set
<!-- TOC -->
[AL2P](#AL2P)
[ALD](#ALD)
[AST](#AST)
[ATOM](#ATOM)
[ATOMS](#ATOMS)
[B2R](#B2R)
[BAR](#BAR)
[BFE](#BFE)
[BFI](#BFI)
[BPT](#BPT)
[BRA](#BRA)
[BRK](#BRK)
[BRX](#BRX)
[CAL](#CAL)
[CCTL](#CCTL)
[CCTLL](#CCTLL)
[CONT](#CONT)
[CS2R](#CS2R)
[CSET](#CSET)
[CSETP](#CSETP)
[DADD](#DADD)
[DEPBAR](#DEPBAR)
[DFMA](#DFMA)
[DMNMX](#DMNMX)
[DMUL](#DMUL)
[DSET](#DSET)
[DSETP](#DSETP)
[EXIT](#EXIT)
[F2F](#F2F)
[F2I](#F2I)
[FADD](#FADD)
[FCHK](#FCHK)
[FCMP](#FCMP)
[FFMA](#FFMA)
[FLO](#FLO)
[FMNMX](#FMNMX)
[FMUL](#FMUL)
[FSET](#FSET)
[FSETP](#FSETP)
[FSWZADD](#FSWZADD)
[GETCRSPTR](#GETCRSPTR)
[GETLMEMBASE](#GETLMEMBASE)
[HADD2](#HADD2)
[HFMA2](#HFMA2)
[HMUL2](#HMUL2)
[HSET2](#HSET2)
[HSETP2](#HSETP2)
[I2F](#I2F)
[I2I](#I2I)
[IADD](#IADD)
[IADD3](#IADD3)
[ICMP](#ICMP)
[IDE](#IDE)
[IDP](#IDP)
[IMAD](#IMAD)
[IMADSP](#IMADSP)
[IMNMX](#IMNMX)
[IMUL](#IMUL)
[IPA](#IPA)
[ISBERD](#ISBERD)
[ISCADD](#ISCADD)
[ISET](#ISET)
[ISETP](#ISETP)
[JCAL](#JCAL)
[JMP](#JMP)
[JMX](#JMX)
[KIL](#KIL)
[LD](#LD)
[LDC](#LDC)
[LDG](#LDG)
[LDL](#LDL)
[LDS](#LDS)
[LEA](#LEA)
[LEPC](#LEPC)
[LONGJMP](#LONGJMP)
[LOP](#LOP)
[LOP3](#LOP3)
[MEMBAR](#MEMBAR)
[MOV](#MOV)
[MUFU](#MUFU)
[NOP](#NOP)
[OUT](#OUT)
[P2R](#P2R)
[PBK](#PBK)
[PCNT](#PCNT)
[PEXIT](#PEXIT)
[PIXLD](#PIXLD)
[PLONGJMP](#PLONGJMP)
[POPC](#POPC)
[PRET](#PRET)
[PRMT](#PRMT)
[PSET](#PSET)
[PSETP](#PSETP)
[R2B](#R2B)
[R2P](#R2P)
[RAM](#RAM)
[RED](#RED)
[RET](#RET)
[RRO](#RRO)
[RTT](#RTT)
[S2R](#S2R)
[SAM](#SAM)
[SEL](#SEL)
[SETCRSPTR](#SETCRSPTR)
[SETLMEMBASE](#SETLMEMBASE)
[SHF](#SHF)
[SHFL](#SHFL)
[SHL](#SHL)
[SHR](#SHR)
[SSY](#SSY)
[ST](#ST)
[STG](#STG)
[STL](#STL)
[STP](#STP)
[STS](#STS)
[SUATOM](#SUATOM)
[SULD](#SULD)
[SURED](#SURED)
[SUST](#SUST)
[SYNC](#SYNC)
[TEX](#TEX)
[TLD](#TLD)
[TLD4](#TLD4)
[TMML](#TMML)
[TXA](#TXA)
[TXD](#TXD)
[TXQ](#TXQ)
[VABSDIFF](#VABSDIFF)
[VABSDIFF4](#VABSDIFF4)
[VADD](#VADD)
[VMAD](#VMAD)
[VMNMX](#VMNMX)
[VOTE](#VOTE)
[VSET](#VSET)
[VSETP](#VSETP)
[VSHL](#VSHL)
[VSHR](#VSHR)
[XMAD](#XMAD)
<!-- /TOC -->
NOTE: Regenerate TOC with `cat docs/gpu/README.md | grep '#' | cut -d '#' -f 2 | tr -d ' ' | awk '{print "["$1"](#"$1")"}'`.
The numbers (in binary) represent the opcodes; `-` signifies "don't care".
# AL2P
`1110 1111 1010 0---`
# ALD
`1110 1111 1101 1---`
# AST
`1110 1111 1111 0---`
# ATOM
- **ATOM_cas**: `1110 1110 1111 ----`
- **ATOM**: `1110 1101 ---- ----`
Atomic operation.
- INC, DEC for U32/S32/U64 does nothing.
- ADD, INC, DEC for S64 does nothing.
- Only ADD does something for F32.
- Only ADD, MIN and MAX does something for F16x2.
# ATOMS
- **ATOMS_cas**: `1110 1110 ---- ----`
- **ATOMS**: `1110 1100 ---- ----`
# B2R
`1111 0000 1011 1---`
# BAR
`1111 0000 1010 1---`
# BFE
- **BFE_reg**: `0101 1100 0000 0---`
- **BFE_cbuf**: `0100 1100 0000 0---`
- **BFE_imm**: `0011 100- 0000 0---`
Bit Field Extract.
# BFI
- **BFI_reg**: `0101 1011 1111 0---`
- **BFI_rc**: `0101 0011 1111 0---`
- **BFI_cr**: `0100 1011 1111 0---`
- **BFI_imm**: `0011 011- 1111 0---`
Bit Field Insert.
# BPT
`1110 0011 1010 ----`
Breakpoint trap.
# BRA
`1110 0010 0100 ----`
Relative branch.
# BRK
`1110 0011 0100 ----`
Break.
# BRX
`1110 0010 0101 ----`
# CAL
`1110 0010 0110 ----`
# CCTL
`1110 1111 011- ----`
Cache Control.
# CCTLL
`1110 1111 100- ----`
Texture Cache Control.
# CONT
`1110 0011 0101 ----`
Continue.
# CS2R
`0101 0000 1100 1---`
Move Special Register to Register.
# CSET
`0101 0000 1001 1---`
Test Condition Code And Set.
# CSETP
`0101 0000 1010 0---`
Test Condition Code and Set Predicate.
# DADD
- **DADD_reg**: `0101 1100 0111 0---`
- **DADD_cbuf**: `0100 1100 0111 0---`
- **DADD_imm**: `0011 100- 0111 0---`
# DEPBAR
`1111 0000 1111 0---`
# DFMA
- **DFMA_reg**: `0101 1011 0111 ----`
- **DFMA_rc**: `0101 0011 0111 ----`
- **DFMA_cr**: `0100 1011 0111 ----`
- **DFMA_imm**: `0011 011- 0111 ----`
FP64 Fused Mutiply Add.
# DMNMX
- **DMNMX_reg**: `0101 1100 0101 0---`
- **DMNMX_cbuf**: `0100 1100 0101 0---`
- **DMNMX_imm**: `0011 100- 0101 0---`
FP64 Minimum/Maximum.
# DMUL
- **DMUL_reg**: `0101 1100 1000 0---`
- **DMUL_cbuf**: `0100 1100 1000 0---`
- **DMUL_imm**: `0011 100- 1000 0---`
FP64 Multiply.
# DSET
- **DSET_reg**: `0101 1001 0--- ----`
- **DSET_cbuf**: `0100 1001 0--- ----`
- **DSET_imm**: `0011 001- 0--- ----`
FP64 Compare And Set.
# DSETP
- **DSETP_reg**: `0101 1011 1000 ----`
- **DSETP_cbuf**: `0100 1011 1000 ----`
- **DSETP_imm**: `0011 011- 1000 ----`
FP64 Compare And Set Predicate.
# EXIT
`1110 0011 0000 ----`
# F2F
- **F2F_reg**: `0101 1100 1010 1---`
- **F2F_cbuf**: `0100 1100 1010 1---`
- **F2F_imm**: `0011 100- 1010 1---`
# F2I
- **F2I_reg**: `0101 1100 1011 0---`
- **F2I_cbuf**: `0100 1100 1011 0---`
- **F2I_imm**: `0011 100- 1011 0---`
# FADD
- **FADD_reg**: `0101 1100 0101 1---`
- **FADD_cbuf**: `0100 1100 0101 1---`
- **FADD_imm**: `0011 100- 0101 1---`
- **FADD32I**: `0000 10-- ---- ----`
FP32 Add.
# FCHK
- **FCHK_reg**: `0101 1100 1000 1---`
- **FCHK_cbuf**: `0100 1100 1000 1---`
- **FCHK_imm**: `0011 100- 1000 1---`
Single Precision FP Divide Range Check.
# FCMP
- **FCMP_reg**: `0101 1011 1010 ----`
- **FCMP_rc**: `0101 0011 1010 ----`
- **FCMP_cr**: `0100 1011 1010 ----`
- **FCMP_imm**: `0011 011- 1010 ----`
FP32 Compare to Zero and Select Source.
# FFMA
- **FFMA_reg**: `0101 1001 1--- ----`
- **FFMA_rc**: `0101 0001 1--- ----`
- **FFMA_cr**: `0100 1001 1--- ----`
- **FFMA_imm**: `0011 001- 1--- ----`
- **FFMA32I**: `0000 11-- ---- ----`
FP32 Fused Multiply and Add.
# FLO
- **FLO_reg**: `0101 1100 0011 0---`
- **FLO_cbuf**: `0100 1100 0011 0---`
- **FLO_imm**: `0011 100- 0011 0---`
# FMNMX
- **FMNMX_reg**: `0101 1100 0110 0---`
- **FMNMX_cbuf**: `0100 1100 0110 0---`
- **FMNMX_imm**: `0011 100- 0110 0---`
FP32 Minimum/Maximum.
# FMUL
- **FMUL_reg**: `0101 1100 0110 1---`
- **FMUL_cbuf**: `0100 1100 0110 1---`
- **FMUL_imm**: `0011 100- 0110 1---`
- **FMUL32I**: `0001 1110 ---- ----`
FP32 Multiply.
# FSET
- **FSET_reg**: `0101 1000 ---- ----`
- **FSET_cbuf**: `0100 1000 ---- ----`
- **FSET_imm**: `0011 000- ---- ----`
FP32 Compare And Set.
# FSETP
- **FSETP_reg**: `0101 1011 1011 ----`
- **FSETP_cbuf**: `0100 1011 1011 ----`
- **FSETP_imm**: `0011 011- 1011 ----`
FP32 Compare And Set Predicate.
# FSWZADD
`0101 0000 1111 1---`
FP32 Add used for FSWZ emulation.
# GETCRSPTR
`1110 0010 1100 ----`
# GETLMEMBASE
`1110 0010 1101 ----`
# HADD2
- **HADD2_reg**: `0101 1101 0001 0---`
- **HADD2_cbuf**: `0111 101- 1--- ----`
- **HADD2_imm**: `0111 101- 0--- ----`
- **HADD2_32I**: `0010 110- ---- ----`
FP16 Add.
# HFMA2
- **HFMA2_reg**: `0101 1101 0000 0---`
- **HFMA2_rc**: `0110 0--- 1--- ----`
- **HFMA2_cr**: `0111 0--- 1--- ----`
- **HFMA2_imm**: `0111 0--- 0--- ----`
- **HFMA2_32I**: `0010 100- ---- ----`
FP16 Fused Mutiply Add.
# HMUL2
- **HMUL2_reg**: `0101 1101 0000 1---`
- **HMUL2_cbuf**: `0111 100- 1--- ----`
- **HMUL2_imm**: `0111 100- 0--- ----`
- **HMUL2_32I**: `0010 101- ---- ----`
FP16 Multiply.
# HSET2
- **HSET2_reg**: `0101 1101 0001 1---`
- **HSET2_cbuf**: `0111 110- 1--- ----`
- **HSET2_imm**: `0111 110- 0--- ----`
FP16 Compare And Set.
# HSETP2
- **HSETP2_reg**: `0101 1101 0010 0---`
- **HSETP2_cbuf**: `0111 111- 1--- ----`
- **HSETP2_imm**: `0111 111- 0--- ----`
FP16 Compare And Set Predicate.
# I2F
- **I2F_reg**: `0101 1100 1011 1---`
- **I2F_cbuf**: `0100 1100 1011 1---`
- **I2F_imm**: `0011 100- 1011 1---`
# I2I
- **I2I_reg**: `0101 1100 1110 0---`
- **I2I_cbuf**: `0100 1100 1110 0---`
- **I2I_imm**: `0011 100- 1110 0---`
# IADD
- **IADD_reg**: `0101 1100 0001 0---`
- **IADD_cbuf**: `0100 1100 0001 0---`
- **IADD_imm**: `0011 100- 0001 0---`
Integer Addition.
# IADD3
- **IADD3_reg**: `0101 1100 1100 ----`
- **IADD3_cbuf**: `0100 1100 1100 ----`
- **IADD3_imm**: `0011 100- 1100 ----`
- **IADD32I**: `0001 110- ---- ----`
3-input Integer Addition.
# ICMP
- **ICMP_reg**: `0101 1011 0100 ----`
- **ICMP_rc**: `0101 0011 0100 ----`
- **ICMP_cr**: `0100 1011 0100 ----`
- **ICMP_imm**: `0011 011- 0100 ----`
Integer Compare to Zero and Select Source.
# IDE
`1110 0011 1001 ----`
# IDP
- **IDP_reg**: `0101 0011 1111 1---`
- **IDP_imm**: `0101 0011 1101 1---`
# IMAD
- **IMAD_reg**: `0101 1010 0--- ----`
- **IMAD_rc**: `0101 0010 0--- ----`
- **IMAD_cr**: `0100 1010 0--- ----`
- **IMAD_imm**: `0011 010- 0--- ----`
- **IMAD32I**: `1000 00-- ---- ----`
Integer Multiply And Add.
# IMADSP
- **IMADSP_reg**: `0101 1010 1--- ----`
- **IMADSP_rc**: `0101 0010 1--- ----`
- **IMADSP_cr**: `0100 1010 1--- ----`
- **IMADSP_imm**: `0011 010- 1--- ----`
Extracted Integer Multiply And Add..
# IMNMX
- **IMNMX_reg**: `0101 1100 0010 0---`
- **IMNMX_cbuf**: `0100 1100 0010 0---`
- **IMNMX_imm**: `0011 100- 0010 0---`
Integer Minimum/Maximum.
# IMUL
- **IMUL_reg**: `0101 1100 0011 1---`
- **IMUL_cbuf**: `0100 1100 0011 1---`
- **IMUL_imm**: `0011 100- 0011 1---`
- **IMUL32I**: `0001 1111 ---- ----`
Integer Multiply.
# IPA
`1110 0000 ---- ----`
# ISBERD
`1110 1111 1101 0---`
In-Stage-Buffer Entry Read.
# ISCADD
- **ISCADD_reg**: `0101 1100 0001 1---`
- **ISCADD_cbuf**: `0100 1100 0001 1---`
- **ISCADD_imm**: `0011 100- 0001 1---`
- **ISCADD32I**: `0001 01-- ---- ----`
Scaled Integer Addition.
# ISET
- **ISET_reg**: `0101 1011 0101 ----`
- **ISET_cbuf**: `0100 1011 0101 ----`
- **ISET_imm**: `0011 011- 0101 ----`
Integer Compare And Set.
# ISETP
- **ISETP_reg**: `0101 1011 0110 ----`
- **ISETP_cbuf**: `0100 1011 0110 ----`
- **ISETP_imm**: `0011 011- 0110 ----`
Integer Compare And Set Predicate.
# JCAL
`1110 0010 0010 ----`
Absolute Call.
# JMP
`1110 0010 0001 ----`
Absolute Jump.
# JMX
`1110 0010 0000 ----`
Absolute Jump Indirect.
# KIL
`1110 0011 0011 ----`
# LD
`100- ---- ---- ----`
Load from generic Memory.
# LDC
`1110 1111 1001 0---`
Load Constant.
# LDG
`1110 1110 1101 0---`
Load from Global Memory.
# LDL
`1110 1111 0100 0---`
Load within Local Memory Window.
# LDS
`1110 1111 0100 1---`
Load within Shared Memory Window.
# LEA
- **LEA_hi_reg**: `0101 1011 1101 1---`
- **LEA_hi_cbuf**: `0001 10-- ---- ----`
- **LEA_lo_reg**: `0101 1011 1101 0---`
- **LEA_lo_cbuf**: `0100 1011 1101 ----`
- **LEA_lo_imm**: `0011 011- 1101 0---`
# LEPC
`0101 0000 1101 0---`
# LONGJMP
`1110 0011 0001 ----`
# LOP
- **LOP_reg**: `0101 1100 0100 0---`
- **LOP_cbuf**: `0100 1100 0100 0---`
- **LOP_imm**: `0011 100- 0100 0---`
# LOP3
- **LOP3_reg**: `0101 1011 1110 0---`
- **LOP3_cbuf**: `0000 001- ---- ----`
- **LOP3_imm**: `0011 11-- ---- ----`
- **LOP32I**: `0000 01-- ---- ----`
# MEMBAR
`1110 1111 1001 1---`
Memory Barrier.
# MOV
- **MOV_reg**: `0101 1100 1001 1---`
- **MOV_cbuf**: `0100 1100 1001 1---`
- **MOV_imm**: `0011 100- 1001 1---`
- **MOV32I**: `0000 0001 0000 ----`
# MUFU
`0101 0000 1000 0---`
Multi Function Operation.
# NOP
`0101 0000 1011 0---`
No operation.
# OUT
- **OUT_reg**: `1111 1011 1110 0---`
- **OUT_cbuf**: `1110 1011 1110 0---`
- **OUT_imm**: `1111 011- 1110 0---`
# P2R
- **P2R_reg**: `0101 1100 1110 1---`
- **P2R_cbuf**: `0100 1100 1110 1---`
- **P2R_imm**: `0011 1000 1110 1---`
Move Predicate Register To Register.
# PBK
`1110 0010 1010 ----`
Pre-break.
# PCNT
`1110 0010 1011 ----`
Pre-continue.
# PEXIT
`1110 0010 0011 ----`
Pre-exit.
# PIXLD
`1110 1111 1110 1---`
# PLONGJMP
`1110 0010 1000 ----`
Pre-long jump.
# POPC
- **POPC_reg**: `0101 1100 0000 1---`
- **POPC_cbuf**: `0100 1100 0000 1---`
- **POPC_imm**: `0011 100- 0000 1---`
Population/Bit count.
# PRET
`1110 0010 0111 ----`
Pre-return from subroutine. Pushes the return address to the CRS stack.
# PRMT
- **PRMT_reg**: `0101 1011 1100 ----`
- **PRMT_rc**: `0101 0011 1100 ----`
- **PRMT_cr**: `0100 1011 1100 ----`
- **PRMT_imm**: `0011 011- 1100 ----`
# PSET
`0101 0000 1000 1---`
Combine Predicates and Set.
# PSETP
`0101 0000 1001 0---`
Combine Predicates and Set Predicate.
# R2B
`1111 0000 1100 0---`
Move Register to Barrier.
# R2P
- **R2P_reg**: `0101 1100 1111 0---`
- **R2P_cbuf**: `0100 1100 1111 0---`
- **R2P_imm**: `0011 100- 1111 0---`
Move Register To Predicate/CC Register.
# RAM
`1110 0011 1000 ----`
# RED
`1110 1011 1111 1---`
Reduction Operation on Generic Memory.
# RET
`1110 0011 0010 ----`
Return.
# RRO
- **RRO_reg**: `0101 1100 1001 0---`
- **RRO_cbuf**: `0100 1100 1001 0---`
- **RRO_imm**: `0011 100- 1001 0---`
# RTT
`1110 0011 0110 ----`
# S2R
`1111 0000 1100 1---`
# SAM
`1110 0011 0111 ----`
# SEL
- **SEL_reg**: `0101 1100 1010 0---`
- **SEL_cbuf**: `0100 1100 1010 0---`
- **SEL_imm**: `0011 100- 1010 0---`
# SETCRSPTR
`1110 0010 1110 ----`
# SETLMEMBASE
`1110 0010 1111 ----`
# SHF
- **SHF_l_reg**: `0101 1011 1111 1---`
- **SHF_l_imm**: `0011 011- 1111 1---`
- **SHF_r_reg**: `0101 1100 1111 1---`
- **SHF_r_imm**: `0011 100- 1111 1---`
# SHFL
`1110 1111 0001 0---`
# SHL
- **SHL_reg**: `0101 1100 0100 1---`
- **SHL_cbuf**: `0100 1100 0100 1---`
- **SHL_imm**: `0011 100- 0100 1---`
# SHR
- **SHR_reg**: `0101 1100 0010 1---`
- **SHR_cbuf**: `0100 1100 0010 1---`
- **SHR_imm**: `0011 100- 0010 1---`
# SSY
`1110 0010 1001 ----`
Set Synchronization Point.
# ST
`101- ---- ---- ----`
Store to generic Memory.
# STG
`1110 1110 1101 1---`
Store to global Memory.
# STL
`1110 1111 0101 0---`
Store within Local or Shared Window.
# STP
`1110 1110 1010 0---`
Store to generic Memory and Predicate.
# STS
`1110 1111 0101 1---`
Store within Local or Shared Window.
# SUATOM
- **SUATOM**: `1110 1010 0--- ----`
- **SUATOM_cas**: `1110 1010 1--- ----`
Atomic Op on Surface Memory.
# SULD
`1110 1011 000- ----`
Surface Load.
# SURED
`1110 1011 010- ----`
Reduction Op on Surface Memory.
# SUST
`1110 1011 001- ----`
Surface Store.
# SYNC
`1111 0000 1111 1---`
# TEX
- **TEX**: `1100 0--- ---- ----`
- **TEX_b**: `1101 1110 10-- ----`
- **TEXS**: `1101 -00- ---- ----`
Texture Fetch with scalar/non-vec4 source/destinations.
# TLD
- **TLD**: `1101 1100 ---- ----`
- **TLD_b**: `1101 1101 ---- ----`
- **TLDS**: `1101 -01- ---- ----`
Texture Load with scalar/non-vec4 source/destinations.
# TLD4
- **TLD4**: `1100 10-- ---- ----`
- **TLD4_b**: `1101 1110 11-- ----`
- **TLD4S**: `1101 1111 -0-- ----`
Texture Load 4 with scalar/non-vec4 source/destinations.
# TMML
- **TMML**: `1101 1111 0101 1---`
- **TMML_b**: `1101 1111 0110 0---`
Texture MipMap Level.
# TXA
`1101 1111 0100 0---`
# TXD
- **TXD**: `1101 1110 00-- ----`
- **TXD_b**: `1101 1110 01-- ----`
Texture Fetch With Derivatives.
# TXQ
- **TXQ**: `1101 1111 0100 1---`
- **TXQ_b**: `1101 1111 0101 0---`
Texture Query.
# VABSDIFF
`0101 0100 ---- ----`
# VABSDIFF4
`0101 0000 0--- ----`
# VADD
`0010 00-- ---- ----`
# VMAD
`0101 1111 ---- ----`
# VMNMX
`0011 101- ---- ----`
# VOTE
- **VOTE**: `0101 0000 1101 1---`
- **VOTE_vtg**: `0101 0000 1110 0---`
Vote Across SIMD Thread Group
# VSET
`0100 000- ---- ----`
# VSETP
`0101 0000 1111 0---`
# VSHL
`0101 0111 ---- ----`
# VSHR
`0101 0110 ---- ----`
# XMAD
- **XMAD_reg**: `0101 1011 00-- ----`
- **XMAD_rc**: `0101 0001 0--- ----`
- **XMAD_cr**: `0100 111- ---- ----`
- **XMAD_imm**: `0011 011- 00-- ----`
Integer Short Multiply Add.
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