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package gfx_isa;
typedef logic[3:0] sgpr_num;
typedef logic[2:0] vgpr_num;
typedef union packed
{
sgpr_num sgpr;
struct packed
{
logic[$bits(sgpr_num) - $bits(vgpr_num) - 1:0] reserved;
vgpr_num num;
} vgpr;
} xgpr_num;
typedef struct packed
{
enum logic[1:0]
{
REGS_SVS = 2'b00,
REGS_SSS = 2'b01,
REGS_VVS = 2'b10,
REGS_VVV = 2'b11
} reg_mode;
union packed
{
struct packed
{
logic b_is_imm;
union packed
{
logic[12:0] imm;
struct packed
{
logic from_consts;
logic[7:0] reserved;
xgpr_num r;
} read;
} b;
xgpr_num ra,
rd;
} rr;
} dst_src;
logic reg_rev;
union packed
{
struct packed
{
enum logic[4:0]
{
INSN_FPINT_MOV = 0,
INSN_FPINT_FMUL = 1,
INSN_FPINT_IMUL = 2,
INSN_FPINT_FADD = 3,
INSN_FPINT_RES4 = 4,
INSN_FPINT_FMAX = 5,
INSN_FPINT_RES6 = 6,
INSN_FPINT_FMIN = 7,
INSN_FPINT_RES8 = 8,
INSN_FPINT_FCVT = 9,
INSN_FPINT_RES[10:31]
} op;
} fpint;
} by_class;
enum logic[1:0]
{
INSN_FPINT = 0,
INSN_MEM = 1,
INSN_SFU = 2,
INSN_GROUP = 3
} insn_class;
} insn_word;
endpackage
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