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feat: add scalar fexp support

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This commit is contained in:
Zhongdi LUO
2026-07-02 07:24:59 +00:00
parent 97a1eff701
commit 9251ba0a24
12 changed files with 327 additions and 14 deletions
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11
hw/rtl/VX_define.vh
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@@ -227,7 +227,7 @@
`define INST_FPU_SQRT 4'b0100
`define INST_FPU_CMP 4'b0101 // mod: LE=0, LT=1, EQ=2
`define INST_FPU_F2F 4'b0110
`define INST_FPU_MISC 4'b0111 // mod: SGNJ=0, SGNJN=1, SGNJX=2, CLASS=3, MVXW=4, MVWX=5, FMIN=6, FMAX=7
`define INST_FPU_MISC 4'b0111 // mod: SGNJ=0, SGNJN=1, SGNJX=2, CLASS=3, MVXW=4, MVWX=5, FMIN=6, FMAX=7
`define INST_FPU_F2I 4'b1000
`define INST_FPU_F2U 4'b1001
`define INST_FPU_I2F 4'b1010
@@ -236,10 +236,11 @@
`define INST_FPU_MSUB 4'b1101
`define INST_FPU_NMSUB 4'b1110
`define INST_FPU_NMADD 4'b1111
`define INST_FPU_BITS 4
`define INST_FPU_IS_W(mod) (mod[4])
`define INST_FPU_IS_CLASS(op, mod) (op == `INST_FPU_MISC && mod == 3)
`define INST_FPU_IS_MVXW(op, mod) (op == `INST_FPU_MISC && mod == 4)
`define INST_FPU_BITS 4
`define INST_FPU_IS_W(mod) (mod[4])
`define INST_FPU_IS_CLASS(op, mod) (op == `INST_FPU_MISC && mod == 3)
`define INST_FPU_IS_MVXW(op, mod) (op == `INST_FPU_MISC && mod == 4)
`define INST_FPU_IS_EXP(op, mod) (op == `INST_FPU_MISC && mod == 8)
`define INST_SFU_TMC 4'h0
`define INST_SFU_WSPAWN 4'h1