system/qemu
system/qemu
1
0
Fork 0
mirror of https://gitlab.com/qemu-project/qemu synced 2024-09-20 19:21:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

target/mips: Define R5900 MMI0 opcode constants

Browse source 
Add definition of MI0 opcodes.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
This commit is contained in:
Fredrik Noring 2018-10-21 17:34:04 +02:00 committed by Aleksandar Markovic
parent d329721172
commit 3ef65697a1
1 changed files with 51 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
target/mips/translate.c
View file

@ -2180,6 +2180,57 @@ enum {
TX79_MMI_PSRAW = 0x3F | TX79_CLASS_MMI,
};
/*
* TX79 Multimedia Instructions with opcode field = MMI and bits 5..0 = MMI0:
*
* 31 26 10 6 5 0
* +--------+----------------------+--------+--------+
* | MMI | |function| MMI0 |
* +--------+----------------------+--------+--------+
*
* function bits 7..6
* bits | 0 | 1 | 2 | 3
* 10..8 | 00 | 01 | 10 | 11
* -------+-------+-------+-------+-------
* 0 000 | PADDW | PSUBW | PCGTW | PMAXW
* 1 001 | PADDH | PSUBH | PCGTH | PMAXH
* 2 010 | PADDB | PSUBB | PCGTB | *
* 3 011 | * | * | * | *
* 4 100 | PADDSW| PSUBSW| PEXTLW| PPACW
* 5 101 | PADDSH| PSUBSH| PEXTLH| PPACH
* 6 110 | PADDSB| PSUBSB| PEXTLB| PPACB
* 7 111 | * | * | PEXT5 | PPAC5
*/
#define MASK_TX79_MMI0(op) (MASK_OP_MAJOR(op) | ((op) & 0x7FF))
enum {
TX79_MMI0_PADDW = (0x00 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBW = (0x01 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PCGTW = (0x02 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PMAXW = (0x03 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PADDH = (0x04 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBH = (0x05 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PCGTH = (0x06 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PMAXH = (0x07 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PADDB = (0x08 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBB = (0x09 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PCGTB = (0x0A << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PADDSW = (0x10 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBSW = (0x11 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PEXTLW = (0x12 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PPACW = (0x13 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PADDSH = (0x14 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBSH = (0x15 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PEXTLH = (0x16 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PPACH = (0x17 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PADDSB = (0x18 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PSUBSB = (0x19 << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PEXTLB = (0x1A << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PPACB = (0x1B << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PEXT5 = (0x1E << 6) | TX79_MMI_CLASS_MMI0,
TX79_MMI0_PPAC5 = (0x1F << 6) | TX79_MMI_CLASS_MMI0,
};
/* global register indices */
static TCGv cpu_gpr[32], cpu_PC;
static TCGv cpu_HI[MIPS_DSP_ACC], cpu_LO[MIPS_DSP_ACC];