9boot: replace strrchr() call with a loop and strchr() for ignoring bang path prefixes

[plan9front.git] / sys / src / boot / pc / l.s

diff --git a/sys/src/boot/pc/l.s b/sys/src/boot/pc/l.s
index e8fa45954c2bb396d7c9d67bc8aa37a0ca07b97d..0858288ecf38815a2c57a74bed4b2d31e2dcd545 100644 (file)
--- a/sys/src/boot/pc/l.s
+++ b/sys/src/boot/pc/l.s
@@ -25,14 +25,6 @@ TEXT origin(SB), $0
 TEXT pmode32(SB), $0
        CLI
 
-       /* disable nmi */
-       PUSHA
-       LWI(0x70, rDX)
-       INB
-       ANDB $0x7F, AL
-       OUTB
-       POPA
-
        /* get return pc */
        POPR(rDI)
 
@@ -129,21 +121,9 @@ TEXT halt(SB), $0
 _halt:
        JMP _halt
 
-TEXT spllo(SB), $0
-       /* enable nmi */
-       PUSHA
-       LWI(0x70, rDX)
-       INB
-       ORB $0x80, AL
-       OUTB
-       POPA
-
-       STI
-       RET
-
 TEXT getc(SB), $0
        CALL rmode16(SB)
-       CALL16(spllo(SB))
+       STI
        MOVB $0x00, AH
        BIOSCALL(0x16)
 _getcret:
@@ -153,7 +133,7 @@ _getcret:
 
 TEXT gotc(SB), $0
        CALL rmode16(SB)
-       CALL16(spllo(SB))
+       STI
        MOVB $0x01, AH
        BIOSCALL(0x16)
        JNZ _getcret
@@ -163,7 +143,7 @@ TEXT gotc(SB), $0
 TEXT putc(SB), $0
        MOVL 4(SP),AX
        CALL rmode16(SB)
-       CALL16(spllo(SB))
+       STI
        MOVB $0x0E, AH
        BIOSCALL(0x10)
 _pret32:
@@ -171,6 +151,17 @@ _pret32:
        ANDL $0xFFFF, AX
        RET
 
+TEXT usleep(SB), $0
+       MOVL t+4(SP), AX
+       PUSHL AX
+       CALL rmode16(SB)
+       STI
+       POPR(rDX)
+       POPR(rCX)
+       MOVB $0x86, AH
+       BIOSCALL(0x15)
+       JMP _pret32
+
 #ifdef PXE
 
 TEXT pxeinit(SB), $0
@@ -225,7 +216,7 @@ TEXT pxecall(SB), $0
        LW(pxepoff(SB), rAX)
        PUSHR(rAX)
 
-       CALL16(spllo(SB))
+       STI
 
        CLR(rAX)
        CLR(rBX)
@@ -286,7 +277,7 @@ TEXT readsect(SB), $0
        MOVW 10(SP), BX
        MOVL 12(SP), SI 
        CALL rmode16(SB)
-       CALL16(spllo(SB))
+       STI
        CALL16(readsect16(SB))
        CALL16(pmode32(SB))
        ANDL $0xFFFF, AX