diff options
| author | Joel Sing <joel@sing.id.au> | 2019-09-08 04:11:07 +1000 |
|---|---|---|
| committer | Joel Sing <joel@sing.id.au> | 2019-09-24 04:16:35 +0000 |
| commit | ced2454220e472c233d4f58a2bc9d01347dedfd3 (patch) | |
| tree | bc9e82bef5c56c7f7032a7f104a5a2fa5cb190b2 /src/cmd/asm | |
| parent | 211932b98790df0ae112d7f680f6912514ae7d94 (diff) | |
| download | go-ced2454220e472c233d4f58a2bc9d01347dedfd3.tar.xz | |
cmd/internal/obj/riscv: add environment call/breakpoint and base counter/timer instructions
This implements assembler support for ECALL/EBREAK, along with base
counter/timer instructions.
Based on riscv-go port.
Updates #27532
Change-Id: I690a9fd835eeddee1fe9a5616d2b2f856d3952b8
Reviewed-on: https://go-review.googlesource.com/c/go/+/195918
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Diffstat (limited to 'src/cmd/asm')
| -rw-r--r-- | src/cmd/asm/internal/asm/testdata/riscvenc.s | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/cmd/asm/internal/asm/testdata/riscvenc.s b/src/cmd/asm/internal/asm/testdata/riscvenc.s index 2e4d464626..1902138504 100644 --- a/src/cmd/asm/internal/asm/testdata/riscvenc.s +++ b/src/cmd/asm/internal/asm/testdata/riscvenc.s @@ -116,6 +116,19 @@ TEXT asmtest(SB),DUPOK|NOSPLIT,$0 REMW X5, X6, X7 // bb635302 REMUW X5, X6, X7 // bb735302 + // 10.1: Base Counters and Timers + RDCYCLE X5 // f32200c0 + RDTIME X5 // f32210c0 + RDINSTRET X5 // f32220c0 + + // Privileged ISA + + // 3.2.1: Environment Call and Breakpoint + ECALL // 73000000 + SCALL // 73000000 + EBREAK // 73001000 + SBREAK // 73001000 + // Arbitrary bytes (entered in little-endian mode) WORD $0x12345678 // WORD $305419896 // 78563412 WORD $0x9abcdef0 // WORD $2596069104 // f0debc9a |