diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-01 10:31:41 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-02-01 10:31:41 +0100 |
| commit | ed9e9f98e9cc502c72b27c68612e9e187ec11e10 (patch) | |
| tree | 42901d0156503dadce4bf1f0b60e9ef850c3c5e0 /sys/src/ape/lib/9/amd64 | |
| parent | d4fb753c9c90e0ca745a1b3708ad3ec4ca523e71 (diff) | |
libc and ape support for amd64
Diffstat (limited to 'sys/src/ape/lib/9/amd64')
| -rw-r--r-- | sys/src/ape/lib/9/amd64/getcallerpc.s | 3 | ||||
| -rw-r--r-- | sys/src/ape/lib/9/amd64/getfcr.s | 38 |
2 files changed, 41 insertions, 0 deletions
diff --git a/sys/src/ape/lib/9/amd64/getcallerpc.s b/sys/src/ape/lib/9/amd64/getcallerpc.s new file mode 100644 index 000000000..15e55ea17 --- /dev/null +++ b/sys/src/ape/lib/9/amd64/getcallerpc.s @@ -0,0 +1,3 @@ +TEXT getcallerpc(SB), 1, $0 + MOVQ -8(RARG), AX + RET diff --git a/sys/src/ape/lib/9/amd64/getfcr.s b/sys/src/ape/lib/9/amd64/getfcr.s new file mode 100644 index 000000000..9fc2002da --- /dev/null +++ b/sys/src/ape/lib/9/amd64/getfcr.s @@ -0,0 +1,38 @@ + +TEXT setfcr(SB), $4 + XORL $(0x3F<<7),RARG /* bits are cleared in csr to enable them */ + ANDL $0xFFC0, RARG /* just the fcr bits */ + WAIT /* is this needed? */ + STMXCSR 0(SP) + MOVL 0(SP), AX + ANDL $~0x3F, AX + ORL RARG, AX + MOVL AX, 0(SP) + LDMXCSR 0(SP) + RET + +TEXT getfcr(SB), $4 + WAIT + STMXCSR 0(SP) + MOVWLZX 0(SP), AX + ANDL $0xFFC0, AX + XORL $(0x3F<<7),AX + RET + +TEXT getfsr(SB), $4 + WAIT + STMXCSR 0(SP) + MOVL 0(SP), AX + ANDL $0x3F, AX + RET + +TEXT setfsr(SB), $4 + ANDL $0x3F, RARG + WAIT + STMXCSR 0(SP) + MOVL 0(SP), AX + ANDL $~0x3F, AX + ORL RARG, AX + MOVL AX, 0(SP) + LDMXCSR 0(SP) + RET |