diff options
Diffstat (limited to 'newlib/libc/sys/sysvnecv70/sbrk.s')
| -rw-r--r-- | newlib/libc/sys/sysvnecv70/sbrk.s | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libc/sys/sysvnecv70/sbrk.s b/newlib/libc/sys/sysvnecv70/sbrk.s new file mode 100644 index 0000000..1d5f924 --- /dev/null +++ b/newlib/libc/sys/sysvnecv70/sbrk.s @@ -0,0 +1,34 @@ + + .globl _sbrk + .globl __sbrk +_sbrk: +__sbrk: + mov.w tptr,r0 + test.w [ap] + je justreport + add.w r0,[ap] + push [ap] + mov.w ap,r3 + mov.w sp,ap + chlvl #0x0,#0x11 + jnl ok + add.w #0x4,sp + jmp cerror +ok: add.w #0x4,sp + mov.w tptr,r0 + mov.w [r3],tptr +justreport: + ret #0x0 + + .globl _brk + .globl __brk +__brk: +_brk: chlvl #0x0,#0x11 + jnl ok1 + jmp cerror +ok1: mov.w [ap],63 + xor.w r0,r0 + ret #0x0 + + .data +tptr: .word _end |