diff options
Diffstat (limited to 'src/thread/sh/syscall_cp.s')
| -rw-r--r-- | src/thread/sh/syscall_cp.s | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/thread/sh/syscall_cp.s b/src/thread/sh/syscall_cp.s new file mode 100644 index 0000000..bb848ef --- /dev/null +++ b/src/thread/sh/syscall_cp.s @@ -0,0 +1,45 @@ +.text +.global __cp_begin +.hidden __cp_begin +.global __cp_end +.hidden __cp_end +.global __cp_cancel +.hidden __cp_cancel +.hidden __cancel +.global __syscall_cp_asm +.hidden __syscall_cp_asm +.type __syscall_cp_asm, @function +__syscall_cp_asm: + +__cp_begin: + mov.l @r4, r4 + tst r4, r4 + bf __cp_cancel + mov r5, r3 + mov r6, r4 + mov r7, r5 + mov.l @r15, r6 + mov.l @(4,r15), r7 + mov.l @(8,r15), r0 + mov.l @(12,r15), r1 + trapa #31 + +__cp_end: + ! work around hardware bug + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + + rts + nop + +__cp_cancel: + mov.l 2f, r0 + braf r0 + nop +1: + +.align 2 +2: .long __cancel@PCREL-(1b-.) |