diff options
| author | Fredrik Noring <noring@nocrew.org> | 2018-10-21 17:31:26 +0200 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2018-10-24 15:07:42 +0200 |
| commit | 6f692818a7b53630702d25a709cd61282fd139ad (patch) | |
| tree | dcd4155aa5c50c44990f6d357f9be113ed7c64ba /target/mips/mips-defs.h | |
| parent | 13399aad4fa87b2878c49d02a5d3bafa6c966ba3 (diff) | |
target/mips: Define R5900 ISA, MMI ASE, and R5900 CPU preprocessor constants
The R5900 implements the 64-bit MIPS III instruction set except
DMULT, DMULTU, DDIV, DDIVU, LL, SC, LLD and SCD. The MIPS IV
instructions MOVN, MOVZ and PREF are implemented. It has the
R5900-specific three-operand instructions MADD, MADDU, MULT and
MULTU as well as pipeline 1 versions MULT1, MULTU1, DIV1, DIVU1,
MADD1, MADDU1, MFHI1, MFLO1, MTHI1 and MTLO1. A set of 93 128-bit
multimedia instructions specific to the R5900 is also implemented.
The Toshiba TX System RISC TX79 Core Architecture manual:
https://wiki.qemu.org/File:C790.pdf
describes the C790 processor that is a follow-up to the R5900. There
are a few notable differences in that the R5900 FPU
- is not IEEE 754-1985 compliant,
- does not implement double format, and
- its machine code is nonstandard.
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Diffstat (limited to 'target/mips/mips-defs.h')
| -rw-r--r-- | target/mips/mips-defs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/mips/mips-defs.h b/target/mips/mips-defs.h index 71ea4ef892..5177618615 100644 --- a/target/mips/mips-defs.h +++ b/target/mips/mips-defs.h @@ -64,9 +64,11 @@ #define INSN_LOONGSON2E 0x0001000000000000ULL #define INSN_LOONGSON2F 0x0002000000000000ULL #define INSN_VR54XX 0x0004000000000000ULL +#define INSN_R5900 0x0008000000000000ULL /* * bits 56-63: vendor-specific ASEs */ +#define ASE_MMI 0x0100000000000000ULL /* MIPS CPU defines. */ #define CPU_MIPS1 (ISA_MIPS1) @@ -74,6 +76,7 @@ #define CPU_MIPS3 (CPU_MIPS2 | ISA_MIPS3) #define CPU_MIPS4 (CPU_MIPS3 | ISA_MIPS4) #define CPU_VR54XX (CPU_MIPS4 | INSN_VR54XX) +#define CPU_R5900 (CPU_MIPS3 | INSN_R5900) #define CPU_LOONGSON2E (CPU_MIPS3 | INSN_LOONGSON2E) #define CPU_LOONGSON2F (CPU_MIPS3 | INSN_LOONGSON2F) |