1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
# Pure Data Packet - scaf feeder routine.
# Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
.include "scafmacro.s"
# *rg is only used for returning the stack pointer
# the 4 bit counter is using registers mm4-mm7 now
# long long scaf_feeder(void *tos, void *rg, *void() ca_rule, void *env)
.globl scaf_feeder
.type scaf_feeder, @function
scaf_feeder:
pushl %ebp
movl %esp, %ebp
push %esi
push %edi
movl 20(%ebp), %edi # load env ptr
movl 8(%ebp), %esi # load TOS2 ptr
movl 16(%ebp), %eax # address of ca routine
pcmpeqw %mm3, %mm3 # load 1 reg
call *%eax # TOS = 32x2 cell result
dup # push %mm0 to memory
movl (%esi), %eax
movl 4(%esi), %edx
lea 16(%esi), %esi # discard stack
movl %esi, (%edi) # store for stack underflow check
emms
pop %edi
pop %esi
leave
ret
|
