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* libc/machine/rl78/setjmp.S: Convert from CPP macros to GAS

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macros, to avoid dependence on the line separation character.

* rl78/crt0.S (_interrupt_vector_table): Convert from CPP macros
to GAS macros, to avoid dependence on the line separation
character.
This commit is contained in:
DJ Delorie 2012-10-03 20:24:50 +00:00
parent 13ab44c05b
commit 2b74bec6c9
4 changed files with 65 additions and 35 deletions
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6
libgloss/ChangeLog
View File

@ -1,3 +1,9 @@
2012-10-03 DJ Delorie <dj@redhat.com>
* rl78/crt0.S (_interrupt_vector_table): Convert from CPP macros
to GAS macros, to avoid dependence on the line separation
character.
2012-10-01 DJ Delorie <dj@redhat.com>
* v850/sbrk.c (_sbrk): Change heap_start to be an array of

6
libgloss/rl78/crt0.S
View File

@ -34,7 +34,11 @@
.short _start
.section ".ivec","a"
#define IV(x) .weak _##x##_handler | .short _##x##_handler
.macro _iv x
.weak \x
.short \x
.endm
#define IV(x) _iv _##x##_handler
#define IVx() .short 0
/* To use a vector, simply define a global function named foo_handler()

5
newlib/ChangeLog
View File

@ -1,3 +1,8 @@
2012-10-03 DJ Delorie <dj@redhat.com>
* libc/machine/rl78/setjmp.S: Convert from CPP macros to GAS
macros, to avoid dependence on the line separation character.
2012-10-01 DJ Delorie <dj@redhat.com>
* libc/sys/sysnecv850/sbrk.c (_sbrk): Change heap_start to be an

83
newlib/libc/machine/rl78/setjmp.S
View File

@ -57,8 +57,14 @@ r23 = 0xffeef
PC 4 bytes
*/
#define SAVEB(ofs,reg) mov a,reg | mov [hl+ofs],a
#define SAVE(ofs,reg) movw ax,reg | movw [hl+ofs],ax
.macro _saveb ofs,reg
mov a,\reg
mov [hl+\ofs],a
.endm
.macro _save ofs,reg
movw ax,\reg
movw [hl+\ofs],ax
.endm
.global _setjmp
.type _setjmp, @function
@ -72,28 +78,28 @@ _setjmp:
movw hl, ax
pop ax
movw [hl], ax
SAVE (2, bc)
SAVE (4, de)
_save 2, bc
_save 4, de
pop ax
movw [hl+6], ax
SAVE (8, r8)
SAVE (10, r10)
SAVE (12, r12)
SAVE (14, r14)
SAVE (16, r16)
SAVE (18, r18)
SAVE (20, r20)
SAVE (22, r22)
_save 8, r8
_save 10, r10
_save 12, r12
_save 14, r14
_save 16, r16
_save 18, r18
_save 20, r20
_save 22, r22
;; The sp we have now includes one more pushed reg, plus $PC
movw ax, sp
addw ax, #6
movw [hl+24], ax
SAVEB (26, es)
SAVEB (27, cs)
SAVE (28, [sp+2])
SAVE (30, [sp+4])
_saveb 26, es
_saveb 27, cs
_save 28, [sp+2]
_save 30, [sp+4]
clrw ax
movw r8, ax
@ -102,9 +108,18 @@ _setjmp:
.size _setjmp, . - _setjmp
#define LOADB(ofs,reg) mov a,[hl+ofs] | mov reg,a
#define LOAD(ofs,reg) movw ax,[hl+ofs] | movw reg,ax
#define PUSH(ofs) movw ax,[hl+ofs] | push ax
.macro _loadb ofs,reg
mov a,[hl+\ofs]
mov \reg,a
.endm
.macro _load ofs,reg
movw ax,[hl+\ofs]
movw \reg,ax
.endm
.macro _push ofs
movw ax,[hl+\ofs]
push ax
.endm
.global _longjmp
.type _longjmp, @function
@ -121,24 +136,24 @@ _longjmp:
movw ax, [hl+24]
movw sp, ax ; this is the *new* stack
PUSH (30) ; high half of PC
PUSH (28) ; low half of PC
PUSH (6) ; HL
PUSH (0) ; AX
_push 30 ; high half of PC
_push 28 ; low half of PC
_push 6 ; HL
_push 0 ; AX
LOAD (2, bc)
LOAD (4, de)
_load 2, bc
_load 4, de
LOAD (10, r10)
LOAD (12, r12)
LOAD (14, r14)
LOAD (16, r16)
LOAD (18, r18)
LOAD (20, r20)
LOAD (22, r22)
_load 10, r10
_load 12, r12
_load 14, r14
_load 16, r16
_load 18, r18
_load 20, r20
_load 22, r22
LOADB (26, es)
LOADB (27, cs)
_loadb 26, es
_loadb 27, cs
pop ax
pop hl