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mes/module/mescc/armv4/as.scm
Jan (janneke) Nieuwenhuizen 2cfce3186b
ARM: Use explicit remainder in __mesabi_uldiv call. 
This inexplicably fixes a segfault in tcc-boot0.

* module/mescc/armv4/as.scm (armv4:r0/r1): Instead of using "push 0",
use explicit slot for remainder.
2022-09-13 13:52:03 +02:00

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;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2017,2018,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU Mes 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 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Mes 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; define armv4 assembly
;;; Code:
(define-module (mescc armv4 as)
#:use-module (mes guile)
#:use-module (mescc as)
#:use-module (mescc info)
#:export (
armv4:instructions
))
;; If 0 <= exp < #x100, use positive-body.
;; If #x-100 < exp < 0, use negative-body.
;; Otherwise, use general-body.
(define-macro (optimize-immediate exp positive-body negative-body
general-body)
`(let ((exp ,exp))
(if (>= exp 0)
(if (< exp #x100)
,positive-body
,general-body)
(if (> exp #x-100)
,negative-body
,general-body))))
(define (armv4:function-preamble . rest)
"Note: Pretends to be on x86 a lot"
'(("push___%lr")
("push___%ebp")
("mov____%esp,%ebp")))
(define (armv4:function-locals . rest)
`(("allocate_stack_4180"))) ; 4*1024 buf, 20 local vars
(define (armv4:r->local info n)
(or n (error "invalid value: armv4:r->local: " n))
(let ((r (get-r info))
(n (- 0 (* 4 n))))
`(,`(,(string-append "mov____%" r ",0x32(%ebp)") (#:immediate ,n)))))
(define (immediate->r0 v)
(optimize-immediate v
`(((#:immediate1 ,v) "mov____$i8,%r0"))
`(((#:immediate1 ,(- -1 v)) "mvn____%r0,$i8"))
`(("mov____$i32,%r0" (#:immediate ,v)))))
(define (armv4:value->r info v)
(let ((r (get-r info)))
(optimize-immediate v
`(((#:immediate1 ,v) ,(string-append "mov____$i8,%" r)))
`(((#:immediate1 ,(- -1 v)) ,(string-append "mvn____%" r ",$i8")))
`((,(string-append "mov____$i32,%" r) (#:immediate ,v))))))
(define (armv4:ret . rest)
"Note: Pretends to be on x86 a lot"
'(("mov____%ebp,%esp")
("pop____%ebp")
("ret")))
(define (armv4:r-zero? info)
(let ((r (get-r info)))
`(((#:immediate1 #x00) ,(string-append "cmp____$i8,%" r)))))
(define (armv4:local->r info n)
(let ((r (get-r info))
(n (- 0 (* 4 n))))
(optimize-immediate n
`(((#:immediate1 ,n)
,(string-append "ldr____%" r ",(%fp,+#$i8)")))
`(((#:immediate1 ,(- n))
,(string-append "ldr____%" r ",(%fp,-#$i8)")))
`((,(string-append "mov____0x32(%ebp),%" r)
(#:immediate ,n))))))
(define (armv4:r0+r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "add____%" r1 ",%" r0)))))
(define (armv4:call-label info label n)
`(((#:offset3 ,label) bl)
((#:immediate1 ,(* n 4)) "add____$i8,%esp")))
(define (armv4:r->arg info i)
(let ((r (get-r info)))
`((,(string-append "push___%" r)))))
(define (armv4:label->arg info label i)
`(("push___$i32" (#:address ,label))))
;; Register--register value subtraction
(define (armv4:r0-r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "sub____%" r1 ",%" r0)))))
;; Zero flag to register.
(define (armv4:zf->r info)
(let* ((r (get-r info)))
`(((#:immediate1 #x00) ,(string-append "mov____$i8,%" r))
((#:immediate1 #x01) ,(string-append "moveq__%" r ",$i8")))))
;; C NOT Register value.
(define (armv4:r-negate info)
(armv4:zf->r info))
(define (armv4:xor-zf info)
'(((#:immediate1 #x00) "mov____$i8,%r0")
((#:immediate1 #x01) "moveq__%r0,$i8")
((#:immediate1 #x00) "cmp____$i8,%r0")))
(define (armv4:r->local+n info id n)
(let ((n (+ (- 0 (* 4 id)) n))
(r (get-r info)))
(optimize-immediate n
`(((#:immediate1 ,n)
,(string-append "str____%" r ",(%fp,+#$i8)")))
`(((#:immediate1 ,(- n))
,(string-append "str____%" r ",(%fp,-#$i8)")))
`((,(string-append "mov____%" r ",0x32(%ebp)")
(#:immediate ,n))))))
(define (armv4:r-mem-add info v)
(let ((r (get-r info)))
`((,(string-append "add____$i32,(%" r ")") (#:immediate ,v)))))
(define (armv4:r-byte-mem-add info v)
(let ((r (get-r info)))
`((,(string-append "push___%r0"))
(,(string-append "ldrsb__%r0,(%" r ")"))
,(optimize-immediate v
`((#:immediate1 ,v) ,(string-append "add____$i8,%r0"))
`((#:immediate1 ,(- v)) ,(string-append "sub____$i8,%r0"))
(error "armv4:r-byte-mem-add got immediate that doesn't fit into 8 bits."))
(,(string-append "strb___%r0,(%" r ")"))
(,(string-append "pop____%r0")))))
(define (armv4:r-word-mem-add info v)
(let ((r (get-r info)))
`((,(string-append "push___%r0"))
(,(string-append "ldrsh__%r0,(%" r ")"))
,(optimize-immediate v
`((#:immediate1 ,v) ,(string-append "add____$i8,%r0"))
`((#:immediate1 ,(- v)) ,(string-append "sub____$i8,%r0"))
`(("add____$i32,(%r0)" (#:immediate ,v))))
(,(string-append "strh___%r0,(%" r ")"))
(,(string-append "pop____%r0")))))
(define (armv4:local-ptr->r info n)
(let ((r (get-r info)))
(let ((n (- 0 (* 4 n))))
`((,(string-append "mov____%ebp,%" r))
,(optimize-immediate n
`((#:immediate1 ,n) ,(string-append "add____$i8,%" r))
`((#:immediate1 ,(- n)) ,(string-append "sub____$i8,%" r))
`(,(string-append "add____$i32,%" r) (#:immediate ,n)))))))
(define (armv4:label->r info label)
(let ((r (get-r info)))
`((,(string-append "mov____$i32,%" r) (#:address ,label)))))
(define (armv4:r0->r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "mov____%" r0 ",%" r1)))))
(define (armv4:byte-mem->r info)
(let ((r (get-r info)))
`((,(string-append "ldrsb__%" r ",(%" r ")"))
((#:immediate1 #xFF) ,(string-append "and____$i8,%" r)))))
(define (armv4:byte-r info)
(let* ((r (get-r info)))
`((,(string-append "uxtb__%" r ",%" r)))))
(define (armv4:byte-signed-r info)
(let* ((r (get-r info)))
`((,(string-append "sxtb__%" r ",%" r)))))
(define (armv4:word-r info)
(let* ((r (get-r info)))
`((,(string-append "uxth__%" r ",%" r)))))
(define (armv4:word-signed-r info)
(let* ((r (get-r info)))
`((,(string-append "sxth__%" r ",%" r)))))
(define (armv4:jump info label)
`(((#:offset3 ,label) "b")))
(define (armv4:jump-z info label)
`(((#:offset3 ,label) "je")))
(define (armv4:jump-nz info label)
`(((#:offset3 ,label) "jne")))
(define (armv4:jump-byte-z info label)
`(("test___%r0,%r0") ; TODO: 1 Byte ?
((#:offset3 ,label) "je")))
;; signed
(define (armv4:jump-g info label)
`(((#:offset3 ,label) "jg")))
(define (armv4:jump-ge info label)
`(((#:offset3 ,label) "jge")))
(define (armv4:jump-l info label)
`(((#:offset3 ,label) "jl" )))
(define (armv4:jump-le info label)
`(((#:offset3 ,label) "jle")))
;; unsigned
(define (armv4:jump-a info label)
`(((#:offset3 ,label) "ja")))
(define (armv4:jump-ae info label)
`(((#:offset3 ,label) "jae")))
(define (armv4:jump-b info label)
`(((#:offset3 ,label) "jb")))
(define (armv4:jump-be info label)
`(((#:offset3 ,label) "jbe")))
(define (armv4:byte-r0->r1-mem info)
(let* ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "strb___%" r0 ",(%" r1 ")")))))
(define (armv4:label-mem->r info label)
(let ((r (get-r info)))
`((,(string-append "mov____0x32,%" r) (#:address ,label)))))
(define (armv4:word-mem->r info)
(let ((r (get-r info)))
`((,(string-append "ldrsh__%" r ",(%" r ")")))))
(define (armv4:mem->r info)
(let ((r (get-r info)))
`((,(string-append "mov____(%" r "),%" r)))))
(define (armv4:local-add info n v)
(let ((n (- 0 (* 4 n))))
(append (immediate->r0 v)
`(("mov____0x32(%ebp),%r1" (#:immediate ,n))
("add____%r0,%r1")
("mov____%r1,0x32(%ebp)" (#:immediate ,n))))))
(define (armv4:label-mem-add info label v)
(append (immediate->r0 v)
`(("add____%r0,0x32" (#:address ,label)))))
(define (armv4:nop info)
'(("nop")))
(define (armv4:swap-r0-r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "xchg___%" r0 ",%" r1)))))
(define (armv4:flag->r branchspec info)
"Find out whether a flag or set of flag has a given set of values and set the value of the register R to 1 if it is so, and to 0 otherwise.
Possible values for branchspec are one of (\"cs\", \"cc\", \"ge\", \"gt\", \"hi\", \"lt\", \"le\")"
(let* ((r (get-r info)))
`(((#:immediate1 #x00) ,(string-append "mov____$i8,%" r))
((#:immediate1 #x01) ,(string-append "mov" branchspec "__%" r ",$i8")))))
;; signed
(define (armv4:g?->r info)
(armv4:flag->r "gt" info))
(define (armv4:ge?->r info)
(armv4:flag->r "ge" info))
(define (armv4:l?->r info)
(armv4:flag->r "lt" info))
(define (armv4:le?->r info)
(armv4:flag->r "le" info))
;; unsigned
(define (armv4:a?->r info)
(armv4:flag->r "hi" info))
(define (armv4:ae?->r info)
(armv4:flag->r "cs" info))
(define (armv4:b?->r info)
(armv4:flag->r "cc" info))
(define (armv4:be?->r info)
(let* ((r (get-r info)))
`(((#:immediate1 #x01) ,(string-append "mov____$i8,%" r))
((#:immediate1 #x00) ,(string-append "movhi__%" r ",$i8")))))
(define (armv4:test-r info)
(let ((r (get-r info)))
`((,(string-append "test___%" r ",%" r)))))
(define (armv4:r->label info label)
(let ((r (get-r info)))
`((,(string-append "mov____%" r ",0x32") (#:address ,label)))))
(define (armv4:r->byte-label info label)
(let* ((r (get-r info))) ; r: byte
`((,(string-append "movb___%" r ",0x32") (#:address ,label)))))
(define (armv4:r->word-label info label)
(let* ((r (get-r info))) ; r: halfword
`((,(string-append "movw___%" r ",0x32") (#:address ,label)))))
(define (armv4:call-r info n)
(let ((r (get-r info)))
`((,(string-append "call___*%" r))
;; Note: Assumes n > 0.
((#:immediate1 ,(* n 4)) "add____$i8,%esp"))))
(define (armv4:r0*r1 info)
;; FIXME: Signedness.
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "mul____%" r0 ",%" r1)))))
(define (armv4:r0<<r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "lsl____%" r0 ",%" r0 ",%" r1)))))
;; FIXME: lsr??! Signed or unsigned r0?
(define (armv4:r0>>r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "lsr____%" r0 ",%" r0 ",%" r1)))))
(define (armv4:r0-and-r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "and____%" r1 ",%" r0)))))
(define (armv4:r0/r1 info signed?)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
(if signed?
;; __mesabi_idiv(a, b)
(cons* `(,(string-append "push___%" r1))
`(,(string-append "push___%" r0))
(armv4:call-label #f "__mesabi_idiv" 2))
;; __mesabi_uldiv(a, b, remainderp)
(append `(("push___%r3") ; slot for remainder
("mov____%esp,%r3")
("push___%r3") ; pointer to remainder
(,(string-append "push___%" r1))
(,(string-append "push___%" r0)))
(armv4:call-label #f "__mesabi_uldiv" 3)
`(("pop____%r3"))))))
(define (armv4:r0%r1 info signed?)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
(if signed?
;; __mesabi_imod(a,b)
(cons* `(,(string-append "push___%" r1))
`(,(string-append "push___%" r0))
(armv4:call-label #f "__mesabi_imod" 2))
;; __mesabi_uldiv(a, b, remainderp)
(append `(("push___%r3") ; slot for remainder
("mov____%esp,%r3")
("push___%r3") ; pointer to remainder
(,(string-append "push___%" r1))
(,(string-append "push___%" r0)))
(armv4:call-label #f "__mesabi_uldiv" 3)
`(("pop____%r0"))))))
(define (armv4:r+value info v)
(let ((r (get-r info)))
(optimize-immediate v
`(((#:immediate1 ,v) ,(string-append "add____$i8,%" r)))
`(((#:immediate1 ,(- v)) ,(string-append "sub____$i8,%" r)))
`((,(string-append "add____$i32,%" r) (#:immediate ,v))))))
(define (armv4:r0->r1-mem info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "mov____%" r0 ",(%" r1 ")")))))
(define (armv4:byte-r0->r1-mem info)
(let* ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "strb___%" r0 ",(%" r1 ")")))))
(define (armv4:word-r0->r1-mem info)
(let* ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "strh___%" r0 ",(%" r1 ")")))))
(define (armv4:r-cmp-value info v)
(let ((r (get-r info)))
(optimize-immediate v
`(((#:immediate1 ,v) ,(string-append "cmp____$i8,%" r)))
`(((#:immediate1 ,(- v)) ,(string-append "cmn____$i8,%" r)))
`((,(string-append "cmp____$i32,%" r) (#:immediate ,v))))))
(define (armv4:push-register info r)
`((,(string-append "push___%" r))))
(define (armv4:pop-register info r)
`((,(string-append "pop____%" r))))
(define (armv4:return->r info)
(let ((r (get-r info)))
(if (equal? r "r0") '()
`((,(string-append "mov____%r0,%" r))))))
(define (armv4:r0-or-r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "or_____%" r1 ",%" r0)))))
(define (armv4:shl-r info n)
(let ((r (get-r info)))
`(((#:immediate1 ,n) ,(string-append "lsl____%" r ",%" r ",$i8")))))
(define (armv4:r+r info)
(let ((r (get-r info)))
`((,(string-append "add____%" r ",%" r)))))
(define (armv4:not-r info)
(let ((r (get-r info)))
`((,(string-append "not____%" r)))))
(define (armv4:r0-xor-r1 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "xor____%" r1 ",%" r0)))))
(define (armv4:r0-mem->r1-mem info)
(let* ((registers (.registers info))
(r0 (get-r0 info))
(r1 (get-r1 info))
(r2 (car registers)))
`((,(string-append "mov____(%" r0 "),%" r2))
(,(string-append "mov____%" r2 ",(%" r1 ")")))))
(define (armv4:byte-r0-mem->r1-mem info)
(let* ((registers (.registers info))
(r0 (get-r0 info))
(r1 (get-r1 info))
(r2 (car registers)))
`((,(string-append "ldrsb__%" r2 ",(%" r0 ")"))
(,(string-append "strb___%" r2 ",(%" r1 ")")))))
(define (armv4:word-r0-mem->r1-mem info)
(let* ((registers (.registers info))
(r0 (get-r0 info))
(r1 (get-r1 info))
(r2 (car registers)))
`((,(string-append "mov____(%" r0 "),%" r2))
(,(string-append "strh___%" r2 ",(%" r1 ")")))))
(define (armv4:r0+value info v)
(let ((r0 (get-r0 info)))
(optimize-immediate v
`(((#:immediate1 ,v) ,(string-append "add____$i8,%" r0)))
`(((#:immediate1 ,(- v)) ,(string-append "sub____$i8,%" r0)))
`((,(string-append "add____$i32,%" r0) (#:immediate ,v))))))
(define (armv4:value->r0 info v)
(let ((r0 (get-r0 info)))
`((,(string-append "mov____$i32,%" r0) (#:immediate ,v)))))
(define (armv4:byte-r->local+n info id n)
(let* ((n (+ (- 0 (* 4 id)) n))
(r (get-r info)))
`(,(optimize-immediate n
`((#:immediate1 ,n)
,(string-append "strb___%" r ",(%fp,+#$i8)"))
`((#:immediate1 ,(- n))
,(string-append "strb___%" r ",(%fp,-#$i8)"))
`(,(string-append "strb___%" r ",0x32(%ebp)")
(#:immediate ,n))))))
(define (armv4:word-r->local+n info id n)
(let* ((n (+ (- 0 (* 4 id)) n))
(r (get-r info)))
(optimize-immediate n
`(((#:immediate1 ,n)
,(string-append "strh___%" r ",(%fp,+#$i8)")))
`(((#:immediate1 ,(- n))
,(string-append "strh___%" r ",(%fp,-#$i8)")))
`((,(string-append "strh___%" r ",0x32(%ebp)"))))))
(define (armv4:r-and info v)
(let ((r (get-r info)))
`(((#:immediate1 ,v) ,(string-append "and____$i8,%" r)))))
(define (armv4:push-r0 info)
(let ((r0 (get-r0 info)))
`((,(string-append "push___%" r0)))))
(define (armv4:r1->r0 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info)))
`((,(string-append "mov____%" r1 ",%" r0)))))
(define (armv4:pop-r0 info)
(let ((r0 (get-r0 info)))
`((,(string-append "pop____%" r0)))))
(define (armv4:swap-r-stack info)
(let ((r (get-r info)))
`((,(string-append "xchg___%" r ",(%esp)")))))
(define (armv4:swap-r1-stack info)
(let ((r0 (get-r0 info)))
`((,(string-append "xchg___%" r0 ",(%esp)")))))
(define (armv4:r2->r0 info)
(let ((r0 (get-r0 info))
(r1 (get-r1 info))
(allocated (.allocated info)))
(if (> (length allocated) 2)
(let ((r2 (cadddr allocated)))
`((,(string-append "mov____%" r2 ",%" r1))))
`((,(string-append "pop____%" r0))
(,(string-append "push___%" r0))))))
(define armv4:instructions
`(
(a?->r . ,armv4:a?->r)
(ae?->r . ,armv4:ae?->r)
(b?->r . ,armv4:b?->r)
(be?->r . ,armv4:be?->r)
(byte-mem->r . ,armv4:byte-mem->r)
(byte-r . ,armv4:byte-r)
(byte-r->local+n . ,armv4:byte-r->local+n)
(byte-r0->r1-mem . ,armv4:byte-r0->r1-mem)
(byte-r0->r1-mem . ,armv4:byte-r0->r1-mem)
(byte-r0-mem->r1-mem . ,armv4:byte-r0-mem->r1-mem)
(byte-signed-r . ,armv4:byte-signed-r)
(call-label . ,armv4:call-label)
(call-r . ,armv4:call-r)
(function-locals . ,armv4:function-locals)
(function-preamble . ,armv4:function-preamble)
(g?->r . ,armv4:g?->r)
(ge?->r . ,armv4:ge?->r)
(jump . ,armv4:jump)
(jump-a . ,armv4:jump-a)
(jump-ae . ,armv4:jump-ae)
(jump-b . ,armv4:jump-b)
(jump-be . ,armv4:jump-be)
(jump-byte-z . ,armv4:jump-byte-z)
(jump-g . , armv4:jump-g)
(jump-ge . , armv4:jump-ge)
(jump-l . ,armv4:jump-l)
(jump-le . ,armv4:jump-le)
(jump-nz . ,armv4:jump-nz)
(jump-z . ,armv4:jump-z)
(l?->r . ,armv4:l?->r)
(label->arg . ,armv4:label->arg)
(label->r . ,armv4:label->r)
(label-mem->r . ,armv4:label-mem->r)
(label-mem-add . ,armv4:label-mem-add)
(le?->r . ,armv4:le?->r)
(local->r . ,armv4:local->r)
(local-add . ,armv4:local-add)
(local-ptr->r . ,armv4:local-ptr->r)
(long-r0->r1-mem . ,armv4:r0->r1-mem)
(long-r0-mem->r1-mem . ,armv4:r0-mem->r1-mem)
(mem->r . ,armv4:mem->r)
(nop . ,armv4:nop)
(not-r . ,armv4:not-r)
(pop-r0 . ,armv4:pop-r0)
(pop-register . ,armv4:pop-register)
(push-r0 . ,armv4:push-r0)
(push-register . ,armv4:push-register)
(r+r . ,armv4:r+r)
(r+value . ,armv4:r+value)
(r->arg . ,armv4:r->arg)
(r->byte-label . ,armv4:r->byte-label)
(r->label . ,armv4:r->label)
(r->local . ,armv4:r->local)
(r->local+n . ,armv4:r->local+n)
(r->word-label . ,armv4:r->word-label)
(r-and . ,armv4:r-and)
(r-byte-mem-add . ,armv4:r-byte-mem-add)
(r-cmp-value . ,armv4:r-cmp-value)
(r-mem-add . ,armv4:r-mem-add)
(r-negate . ,armv4:r-negate)
(r-word-mem-add . ,armv4:r-word-mem-add)
(r-zero? . ,armv4:r-zero?)
(r0%r1 . ,armv4:r0%r1)
(r0*r1 . ,armv4:r0*r1)
(r0+r1 . ,armv4:r0+r1)
(r0+value . ,armv4:r0+value)
(r0->r1 . ,armv4:r0->r1)
(r0->r1-mem . ,armv4:r0->r1-mem)
(r0-and-r1 . ,armv4:r0-and-r1)
(r0-mem->r1-mem . ,armv4:r0-mem->r1-mem)
(r0-or-r1 . ,armv4:r0-or-r1)
(r0-r1 . ,armv4:r0-r1)
(r0-xor-r1 . ,armv4:r0-xor-r1)
(r0/r1 . ,armv4:r0/r1)
(r0<<r1 . ,armv4:r0<<r1)
(r0>>r1 . ,armv4:r0>>r1)
(r1->r0 . ,armv4:r1->r0)
(r2->r0 . ,armv4:r2->r0)
(ret . ,armv4:ret)
(return->r . ,armv4:return->r)
(shl-r . ,armv4:shl-r)
(swap-r-stack . ,armv4:swap-r-stack)
(swap-r0-r1 . ,armv4:swap-r0-r1)
(swap-r1-stack . ,armv4:swap-r1-stack)
(test-r . ,armv4:test-r)
(value->r . ,armv4:value->r)
(value->r0 . ,armv4:value->r0)
(word-mem->r . ,armv4:word-mem->r)
(word-r . ,armv4:word-r)
(word-r->local+n . ,armv4:word-r->local+n)
(word-r0->r1-mem . ,armv4:word-r0->r1-mem)
(word-r0-mem->r1-mem . ,armv4:word-r0-mem->r1-mem)
(word-signed-r . ,armv4:word-signed-r)
(xor-zf . ,armv4:xor-zf)
(zf->r . ,armv4:zf->r)
))
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