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ld: merge XRAM and YRAM into a single 16-kiB section

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Lephe 2022-05-04 17:21:23 +01:00
parent 26c5b76037
commit 8210524152
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GPG key ID: 1BBA026E13FC0495
4 changed files with 20 additions and 47 deletions
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28
fx9860g.ld
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@ -35,8 +35,7 @@ MEMORY
/* On-chip IL memory */ /* On-chip IL memory */
ilram (rwx): o = 0xe5200000, l = 4k ilram (rwx): o = 0xe5200000, l = 4k
/* On-chip X and Y memory */ /* On-chip X and Y memory */
xram (rwx): o = 0xe5007000, l = 8k xyram (rwx): o = 0xe500e000, l = 16k
yram (rwx): o = 0xe5017000, l = 8k
} }
SECTIONS SECTIONS
@ -188,29 +187,18 @@ SECTIONS
. = ALIGN(16); . = ALIGN(16);
} > ilram AT> rom } > ilram AT> rom
. = ORIGIN(xram); . = ORIGIN(xyram);
.xram ALIGN(4) : ALIGN(4) { .xyram ALIGN(4) : ALIGN(4) {
_lxram = LOADADDR(.xram); _lxyram = LOADADDR(.xyram);
_rxram = . ; _rxyram = . ;
*(.xram) *(.xram .yram .xyram)
. = ALIGN(16); . = ALIGN(16);
} > xram AT> rom } > xyram AT> rom
. = ORIGIN(yram);
.yram ALIGN(4) : ALIGN(4) {
_lyram = LOADADDR(.yram);
_ryram = . ;
*(.yram)
. = ALIGN(16);
} > yram AT> rom
_silram = SIZEOF(.ilram); _silram = SIZEOF(.ilram);
_sxram = SIZEOF(.xram); _sxyram = SIZEOF(.xyram);
_syram = SIZEOF(.yram);

29
fxcg50.ld
View file

@ -21,8 +21,7 @@ MEMORY
/* On-chip IL memory */ /* On-chip IL memory */
ilram (rwx): o = 0xe5200000, l = 4k ilram (rwx): o = 0xe5200000, l = 4k
/* On-chip X and Y memory */ /* On-chip X and Y memory */
xram (rwx): o = 0xe5007000, l = 8k xyram (rwx): o = 0xe500e000, l = 16k
yram (rwx): o = 0xe5017000, l = 8k
} }
SECTIONS SECTIONS
@ -102,7 +101,6 @@ SECTIONS
.bss (NOLOAD) : { .bss (NOLOAD) : {
_rbss = . ; _rbss = . ;
*(.bss.vram)
*(.bss COMMON) *(.bss COMMON)
. = ALIGN(16); . = ALIGN(16);
@ -144,29 +142,18 @@ SECTIONS
. = ALIGN(16); . = ALIGN(16);
} > ilram AT> rom } > ilram AT> rom
. = ORIGIN(xram); . = ORIGIN(xyram);
.xram ALIGN(4) : ALIGN(4) { .xyram ALIGN(4) : ALIGN(4) {
_lxram = LOADADDR(.xram); _lxyram = LOADADDR(.xyram);
_rxram = . ; _rxyram = . ;
*(.xram) *(.xram .yram .xyram)
. = ALIGN(16); . = ALIGN(16);
} > xram AT> rom } > xyram AT> rom
. = ORIGIN(yram);
.yram ALIGN(4) : ALIGN(4) {
_lyram = LOADADDR(.yram);
_ryram = . ;
*(.yram)
. = ALIGN(16);
} > yram AT> rom
_silram = SIZEOF(.ilram); _silram = SIZEOF(.ilram);
_sxram = SIZEOF(.xram); _sxyram = SIZEOF(.xyram);
_syram = SIZEOF(.yram);
/* gint's uninitialized BSS section, going to static RAM. All the large /* gint's uninitialized BSS section, going to static RAM. All the large
data arrays will be located here */ data arrays will be located here */

4
include/gint/defs/attributes.h
View file

@ -14,8 +14,8 @@
#define GBSS3 __attribute__((section(".gint.bss.sh3"))) #define GBSS3 __attribute__((section(".gint.bss.sh3")))
/* Objects for the ILRAM, XRAM and YRAM regions */ /* Objects for the ILRAM, XRAM and YRAM regions */
#define GILRAM __attribute__((section(".ilram"))) #define GILRAM __attribute__((section(".ilram")))
#define GXRAM __attribute__((section(".xram"))) #define GXRAM __attribute__((section(".xyram")))
#define GYRAM __attribute__((section(".yram"))) #define GYRAM __attribute__((section(".xyram")))
/* Unused parameters or variables */ /* Unused parameters or variables */
#define GUNUSED __attribute__((unused)) #define GUNUSED __attribute__((unused))

6
src/kernel/start.c
View file

@ -23,8 +23,7 @@ extern uint32_t
brom, srom, /* Limits of ROM mappings */ brom, srom, /* Limits of ROM mappings */
ldata, sdata, rdata, /* User's data section */ ldata, sdata, rdata, /* User's data section */
lilram, silram, rilram, /* IL memory section */ lilram, silram, rilram, /* IL memory section */
lxram, sxram, rxram, /* X memory section */ lxyram, sxyram, rxyram, /* X and Y memory section */
lyram, syram, ryram, /* Y memory section */
sbss, rbss; /* User's BSS section */ sbss, rbss; /* User's BSS section */
#ifdef FX9860G #ifdef FX9860G
extern uint32_t extern uint32_t
@ -151,8 +150,7 @@ int start(int isappli, int optnum)
if(!isSH3()) if(!isSH3())
{ {
regcpy(&lilram, &silram, &rilram); regcpy(&lilram, &silram, &rilram);
regcpy(&lxram, &sxram, &rxram); regcpy(&lxyram, &sxyram, &rxyram);
regcpy(&lyram, &syram, &ryram);
} }
#ifdef FX9860G #ifdef FX9860G