Hi, All !
I found a very strange GCC output.
As I know msp430 does not have "jlo r15" command (binutils do not know about
this command too :), but GCC tries to use it 8-).
I have attached an extract from the file and the assembler output
(GCC was invoked by "msp430-gcc -std=gnu99 -mmcu=msp430x149 -S -O -c tst.c"
command).
I use a mingw version of GCC which I have built 2 or 3 weeks ago, the
release
version produces the correct code.
All the best, Oleg.
void Start(void);
void Stop(void);
int BusRq(void);
void BusFree(void);
int BusWrite(uint16_t a,uint16_t w);
int BusRead(uint16_t a,uint16_t* r);
uint8_t ScanBanks(void);
#define BusReadF(a) ({uint16_t r; \
asm volatile("bic.b #0x40,&0x29 ;Enable buffer
\n\t"\
"mov %1,r12 \n\t"\
"inv r12
\n\t"\
"mov.b
r12,&0x1D ;Address low \n\t"\
"swpb r12
\n\t"\
"mov.b
r12,&0x31 ;Address high \n\t"\
"bic.b
#0x02,&0x29 ;Ê ÑÈÀ Í \n\t"\
"clr.b &0x1E
\n\t" \
"clr.b &0x32
\n\t" \
"bic.b
#0x08,&0x29 ;Ê ÂÂÎÄ Í \n"\
"WaitFall%=:
bit.b #0x08,&0x20 ;Ê ÑÈÏ Í \n\t"\
"jnz
WaitFall%= \n\t"\
"mov.b
&0x30,r12 \n\t"\
"swpb r12
\n\t"\
"mov.b
&0x1C,%0 \n\t"\
"bis r12,%0
\n\t"\
"bis.b
#0x08,&0x29 ;Ê ÂÂÎÄ Í \n\t"\
"mov.b #0xFF,&0x1E \n\t"\
"mov.b
#0xFF,&0x32 \n\t"\
"WaitRise%=:
bit.b #0x08,&0x20 ;Ê ÑÈÏ Í \n"\
"jz WaitRise%=
\n\t"\
"bis.b
#0x42,&0x29 ;Ê ÑÈÀ Í,disable buffer \n\t" : "=r"(r) : "rmI"(a) :
"r12");\
r;})
#include "io.h"
#include "HAL.h"
void LongTest(uint8_t b)
{
uint8_t b1;
LCDClean();
WriteString("¤a¾¸cÄ e㸽¸å...");
b1=b;
for(uint16_t a=0;a<0160000;b1>>=1)
{
if(!(b1 & 0x01)){ a+=020000; continue; }
for(int i=010000;i;i--,a+=2)
{
BusWrite(a,0xFFFF);
}
}
LCDClean();
WriteString("Tec¿¸po³a½¸e O¤©...");
b1=b;
for(uint16_t a=0;a<0160000;b1>>=1)
{
if(!(b1 & 0x01)){ a+=020000; continue; }
for(int i=010000;i;i--,a+=2)
{
At(0,1);
WriteWord(a);
BusWrite(a,0x0000);
uint8_t b2=b;
for(uint16_t a2=0;a2<0160000;b2>>=1)
{
if(!(b2 & 0x01)){ a2+=020000; continue; }
for(int i=010000;i;i--,a2+=2)
{
uint16_t r;
r=BusReadF(a2);
if(a2<=a)
{
if(r!=0xFFFF)
{
if(Error(a,0x0000,a2,~r,0x0000))return;
Recovery(b,a);
}
}
else
{
if(r!=0x0000)
{
if(Error(a,0x0000,a2,~r,0xFFFF))return;
Recovery(b,a);
}
}
}
}
}
}
}
.file "tst.c"
.arch msp430x149
/* Hardware multiplier registers: */
__MPY=0x130
__MPYS=0x132
__MAC=0x134
__MACS=0x136
__OP2=0x138
__RESLO=0x13a
__RESHI=0x13c
__SUMEXT=0x13e
.text
.LC0:
.string "\244a\276\270c\304 e\343\270\275\270\345..."
.LC1:
.string "Tec\277\270po\263a\275\270e O\244\251..."
.p2align 1,0
.global LongTest
.type LongTest,@function
/***********************
* Function `LongTest'
***********************/
LongTest:
/* prologue: frame size = 0 */
.L__FrameSize_LongTest=0x0
.L__FrameOffset_LongTest=0xe
push r11
push r10
push r9
push r8
push r7
push r6
push r5
/* prologue end (size=7) */
mov.b r15, r6
call #LCDClean
mov #.LC0, r15
call #WriteString
mov.b r6, r7
mov #llo(0), r10
.L12:
mov.b r7, r15
and.b #llo(1), r15
jne .L6
add #llo(8192), r10
jmp .L4
.L6:
mov #llo(4096), r11
.L11:
mov #llo(-1), r14
mov r10, r15
call #BusWrite
add #llo(-1), r11
add #llo(2), r10
cmp #llo(0), r11
jne .L11
.L4:
clrc
rrc.b r7
cmp #llo(-8192), r10
jlo .L12
call #LCDClean
mov #.LC1, r15
call #WriteString
mov.b r6, r7
mov #llo(0), r9
.L40:
mov.b r7, r15
and.b #llo(1), r15
jne .L17
add #llo(8192), r9
jmp .L15
.L17:
mov #llo(4096), r5
.L39:
mov #llo(1), r14
mov #llo(0), r15
call #At
mov r9, r15
call #WriteWord
mov #llo(0), r14
mov r9, r15
call #BusWrite
mov.b r6, r8
mov #llo(0), r11
.L38:
mov.b r8, r15
and.b #llo(1), r15
jne .L26
add #llo(8192), r11
jmp .L24
.L26:
mov #llo(4096), r10
.L37:
/* #APP */
bic.b #0x40,&0x29 ;Enable buffer
mov r11,r12
inv r12
mov.b r12,&0x1D ;Address low
swpb r12
mov.b r12,&0x31 ;Address high
bic.b #0x02,&0x29 ;Ê ÑÈÀ Í
clr.b &0x1E
clr.b &0x32
bic.b #0x08,&0x29 ;Ê ÂÂÎÄ Í
WaitFall103: bit.b #0x08,&0x20 ;Ê ÑÈÏ Í
jnz WaitFall103
mov.b &0x30,r12
swpb r12
mov.b &0x1C,r15
bis r12,r15
bis.b #0x08,&0x29 ;Ê ÂÂÎÄ Í
mov.b #0xFF,&0x1E
mov.b #0xFF,&0x32
WaitRise103: bit.b #0x08,&0x20 ;Ê ÑÈÏ Í
jz WaitRise103
bis.b #0x42,&0x29 ;Ê ÑÈÀ Í,disable buffer
/* #NOAPP */
cmp r11, r9
jlo r15
cmp #llo(-1), r15
jeq .L29
inv r15
push #llo(0)
mov r15, r12
mov r11, r13
mov #llo(0), r14
mov r9, r15
call #Error
add #llo(2), r1
cmp #llo(0), r15
jne .L1
jmp .L49
.L31:
cmp #llo(0), r15
jeq .L29
inv r15
push #llo(-1)
mov r15, r12
mov r11, r13
mov #llo(0), r14
mov r9, r15
call #Error
add #llo(2), r1
cmp #llo(0), r15
jne .L1
.L49:
mov r9, r14
mov.b r6, r15
call #Recovery
.L29:
add #llo(-1), r10
add #llo(2), r11
cmp #llo(0), r10
jne .L37
.L24:
clrc
rrc.b r8
cmp #llo(-8192), r11
jlo .L38
add #llo(-1), r5
add #llo(2), r9
cmp #llo(0), r5
jne .L39
.L15:
clrc
rrc.b r7
cmp #llo(-8192), r9
jlo .L40
.L1:
/* epilogue: frame size=0 */
pop r5
pop r6
pop r7
pop r8
pop r9
pop r10
pop r11
ret
/* epilogue end (size=8) */
/* function LongTest size 184 (169) */
.Lfe1:
.size LongTest,.Lfe1-LongTest
/********* End of function ******/
/*********************************************************************
* File tst.c: code size: 184 words (0xb8)
* incl. words in prologues: 7, epilogues: 8
*********************************************************************/
