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ARM: Move r9 usage completely into "arm.M1". 

* lib/arm-mes/arm.M1: Add "ret" macro.
* module/mescc/armv4/as.scm (armv4:ret): Use it.
* lib/arm-mes/arm.M1: Add macros "lsl____%r0,%r0,$i8", "lsl____%r1,%r1,$i8".
* module/mescc/armv4/as.scm (armv4:shl-r): Use them.
This commit is contained in:
Danny Milosavljevic 2019-02-22 19:22:06 +01:00 committed by Jan Nieuwenhuizen
parent 794d242b9b
commit f51d3a3356
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GPG Key ID: F3C1A0D9C1D65273
2 changed files with 9 additions and 7 deletions
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9
lib/arm-mes/arm.M1
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@ -205,8 +205,8 @@ DEFINE moveq__%r0,$i8 00a003 # moveq r0, #xx
#DEFINE teq____%r1,$i8 420031e3 # teq r1, #xx
DEFINE asr____%r0,%r0,%r1 5001a0e1 # asr %r0, %r0, %r1
DEFINE lsl____%r0,%r0,%r1 1001a0e1 # lsl %r0, %r0, %r1
DEFINE lsl____%r0,%r0,%r9 1009a0e1 # lsl %r0, %r0, %r9
DEFINE lsl____%r1,%r1,%r9 1119a0e1 # lsl %r1, %r1, %r9
DEFINE lsl____%r0,%r0,$i8 90a0e31009a0e1 # mov r9, #xx; lsl %r0, %r0, %r9
DEFINE lsl____%r1,%r1,$i8 90a0e31119a0e1 # mov r9, #xx; lsl %r1, %r1, %r9
DEFINE lsr____%r0,%r0,%r1 3001a0e1 # lsr %r0, %r0, %r1
DEFINE ldr____%r0,(%sp,#$i8) 009de5 # ldr r0, [r13+xx]
DEFINE ldr____%r1,(%sp,#$i8) 109de5 # ldr r1, [r13+xx]
@ -298,6 +298,11 @@ DEFINE mov____0x32,%r2 04909fe5002099e5000000ea
# e1a01009 mov r1, r9
DEFINE xchg___%r0,%r1 0090a0e10100a0e10910a0e1
# e1a0900e mov r9, lr
# e49de004 pop {lr} ; (ldr lr, [sp], #4)
# e1a0f009 mov pc, r9
DEFINE ret 0e90a0e104e09de409f0a0e1
# The flags are also updated, but that's probably useless.
DEFINE add____$i8,%esp d09de2
#DEFINE add____$i32,0x32(%ebp) xx

7
module/mescc/armv4/as.scm
View File

@ -59,9 +59,7 @@
"Note: Pretends to be on x86 a lot"
'(("mov____%ebp,%esp")
("pop____%ebp")
("mov____%lr,%r9")
("pop____%lr")
("mov____%r9,%pc")))
("ret")))
(define (armv4:r-zero? info)
(let ((r (get-r info)))
@ -400,8 +398,7 @@
(define (armv4:shl-r info n)
(let ((r (get-r info)))
`(((#:immediate1 ,n) "mov____$i8,%r9")
((#:immediate1 ,n) ,(string-append "lsl____%" r ",%" r ",%r9")))))
`(((#:immediate1 ,n) ,(string-append "lsl____%" r ",%" r ",$i8")))))
(define (armv4:r+r info)
(let ((r (get-r info)))