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Merge pull request #145 from ranma/libc-main-vectors

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Rename bootloader to main
This commit is contained in:
logicog
2026-03-01 17:53:56 +01:00
committed by GitHub
parent 23e2f5a99e c868482669
commit 706abcf78d
4 changed files with 7 additions and 45 deletions
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Makefile
+2 -4
View File
@@ -1,5 +1,3 @@
BOOTLOADER_ADDRESS=0x100
VERSION=0.1.0 VERSION=0.1.0
IMAGESIZE = 524288 IMAGESIZE = 524288
DEFAULT_CONFIG_LOCATION = 454656 DEFAULT_CONFIG_LOCATION = 454656
@@ -65,8 +63,8 @@ $(BUILDDIR)%.rel: $(BUILDDIR)%.asm
${ASM} ${AFLAGS} -o $@ $< ${ASM} ${AFLAGS} -o $@ $<
# mv -f $(addprefix $(basename $^), .lst .rel .sym) . # mv -f $(addprefix $(basename $^), .lst .rel .sym) .
$(BUILDDIR)rtlplayground.ihx: $(BUILDDIR)crtstart.rel $(OBJS) $(BUILDDIR)crc16.rel $(BUILDDIR)rtlplayground.ihx: $(OBJS) $(BUILDDIR)crtstart.rel $(BUILDDIR)crc16.rel
$(CC) $(CC_FLAGS) -Wl-bHOME=${BOOTLOADER_ADDRESS} -Wl-bBANK1=0x14000 -Wl-bBANK2=0x24000 -Wl-r -o $@ $^ $(CC) $(CC_FLAGS) -Wl-bHOME=0x00000 -Wl-bBANK1=0x14000 -Wl-bBANK2=0x24000 -Wl-r -o $@ $^
$(BUILDDIR)rtlplayground.img: $(BUILDDIR)rtlplayground.ihx $(BUILDDIR)rtlplayground.img: $(BUILDDIR)rtlplayground.ihx
objcopy --input-target=ihex -O binary $< $@ objcopy --input-target=ihex -O binary $< $@
crtstart.asm
-40
View File
@@ -1,44 +1,4 @@
.globl __start__stack
;--------------------------------------------------------
; Stack segment in internal ram
;--------------------------------------------------------
.area SSEG (DATA)
__start__stack:
.ds 1
.area VECTOR (CODE)
.globl __interrupt_vect
__interrupt_vect:
ljmp __sdcc_gsinit_startup
ljmp _isr_ext0 ; 0x03
.ds 5
ljmp _isr_timer0 ; 0x0b
.ds 5
ljmp _isr_ext1 ; 0x13
.ds 5
reti ; 0x1b TIMER 1 IRQ
.ds 7
ljmp _isr_serial ; 0x23
.ds 5
ljmp _isr_timer2 ; 0x2b TIMER 2 IRQ
.ds 5
reti ; 0x33 NOT used by DW8051
.ds 7
reti ; 0x3b Serial port 1 RX/TX IRQ
.ds 7
ljmp _isr_ext2 ; 0x43
.ds 5
ljmp _isr_ext3 ; 0x4b
.globl __start__stack
.area GSINIT0 (CODE)
__sdcc_gsinit_startup::
mov sp,#__start__stack - 1
.area GSFINAL (CODE) .area GSFINAL (CODE)
ljmp _bootloader
__sdcc_banked_call:: __sdcc_banked_call::
push _PSBANK push _PSBANK
rtlplayground.c
+1 -1
View File
@@ -1942,7 +1942,7 @@ void check_and_flash_update_image(void)
} }
} }
void bootloader(void) void main(void)
{ {
ticks = 0; ticks = 0;
stp_clock = STP_TICK_DIVIDER; stp_clock = STP_TICK_DIVIDER;
tools/imagebuilder.c
+4
View File
@@ -106,6 +106,10 @@ int main(int argc, char **argv)
printf("Error reading input file.\n"); printf("Error reading input file.\n");
return 5; return 5;
} }
if (buffer[0] != 2) {
printf("Expected LJMP at offset 0.\n");
return 5;
}
for (int b = BANK0_SIZE; b < BANK_STRIDE + BANK0_SIZE; b ++) { for (int b = BANK0_SIZE; b < BANK_STRIDE + BANK0_SIZE; b ++) {
if (buffer[b]) { if (buffer[b]) {
printf("WARNING: Bank 0: code segment too large at 0x%x!\n", b); printf("WARNING: Bank 0: code segment too large at 0x%x!\n", b);