Skip to content

fix(pause): loong64 zero register and riscv64 PAUSE hint #5

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
hayabusa-cloud merged 2 commits into from
Dec 28, 2025
Merged

fix(pause): loong64 zero register and riscv64 PAUSE hint #5

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
23d7bdf
fix: riscv64 PAUSE hint
hayabusa-cloud Dec 28, 2025
6b6ed80
fix: loong64 zero register
hayabusa-cloud Dec 28, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 3 additions & 3 deletions internal/pause/pause_loong64.s
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,9 @@ TEXT ·pause1(SB), NOSPLIT|NOFRAME, $0-0

// func pauseN(cycles int)
TEXT ·pauseN(SB), NOSPLIT|NOFRAME, $0-8
MOVV cycles+0(FP), R0
MOVV cycles+0(FP), R4
loop:
OR R0, R0, R0
ADDV $-1, R0, R0
BNE R0, loop
ADDV $-1, R4, R4
BNE R4, loop
RET
8 changes: 5 additions & 3 deletions internal/pause/pause_riscv64.s
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,16 +6,18 @@

#include "textflag.h"

#define PAUSE WORD $0x0100000F // Zihintpause

// func pause1()
TEXT ·pause1(SB), NOSPLIT|NOFRAME, $0-0
FENCE
PAUSE
RET

// func pauseN(cycles int)
TEXT ·pauseN(SB), NOSPLIT|NOFRAME, $0-8
MOV cycles+0(FP), X10
loop:
FENCE
ADDI $-1, X10, X10 // X10 = X10 - 1
PAUSE
ADDI $-1, X10, X10
BNEZ X10, loop
RET
Loading