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forth: simplify build process

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Make LATEST configurable through a value in the binary instead of through
a ZASM constant. This enables the simple concatenation of compiled dicts and
simplifies the build process.
This commit is contained in:
Virgil Dupras 2020-04-01 08:54:01 -04:00
parent b7244f8985
commit e846d07238
7 changed files with 27 additions and 27 deletions
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6
emul/Makefile
View File

@ -30,7 +30,7 @@ shell/shell: shell/shell.c $(SHELLOBJS) shell/shell-bin.h
# z80c.bin is not in the prerequisites because its a bootstrap binary that
# should be updated manually through make fbootstrap.
forth/forth0.bin: forth/stage0.asm $(ZASMBIN)
$(ZASMBIN) $(KERNEL) ../forth forth/z80c.bin forth/stagec.asm < forth/stage0.asm | tee $@ > /dev/null
$(ZASMBIN) $(KERNEL) ../forth < forth/stage0.asm | cat - forth/z80c.bin | tee $@ > /dev/null
forth/forth0-bin.h: forth/forth0.bin
./bin2c.sh KERNEL < forth/forth0.bin | tee $@ > /dev/null
@ -44,8 +44,8 @@ forth/stage1dbg: forth/stage.c $(OBJS) forth/forth0-bin.h
forth/core.bin: $(FORTHSRC_PATHS) forth/stage1
cat $(FORTHSRC_PATHS) | ./forth/stage1 | tee $@ > /dev/null
forth/forth1.bin: forth/stage1.asm forth/forth0.bin forth/core.bin $(ZASMBIN)
$(ZASMBIN) $(KERNEL) ../forth forth/z80c.bin forth/core.bin forth/stagec.asm < forth/stage1.asm | tee $@ > /dev/null
forth/forth1.bin: forth/forth0.bin forth/core.bin
cat forth/forth0.bin forth/core.bin > $@
forth/forth1-bin.h: forth/forth1.bin
./bin2c.sh KERNEL < forth/forth1.bin | tee $@ > /dev/null

6
emul/forth/forth.c
View File

@ -76,6 +76,12 @@ int main(int argc, char *argv[])
for (int i=0; i<sizeof(KERNEL); i++) {
m->mem[i] = KERNEL[i];
}
// Our binaries don't have their LATEST offset set yet. We do this
// on the fly, which is the simplest way to proceed ( bash script to update
// LATEST after compilation is too simplicated )
m->mem[0x08] = sizeof(KERNEL) & 0xff;
m->mem[0x09] = sizeof(KERNEL) >> 8;
// Run!
running = 1;

7
emul/forth/stage.c
View File

@ -79,6 +79,13 @@ int main(int argc, char *argv[])
for (int i=0; i<sizeof(KERNEL); i++) {
m->mem[i] = KERNEL[i];
}
// Our binaries don't have their LATEST offset set yet. We do this
// on the fly, which is the simplest way to proceed ( bash script to update
// LATEST after compilation is too simplicated )
m->mem[0x08] = sizeof(KERNEL) & 0xff;
m->mem[0x09] = sizeof(KERNEL) >> 8;
// Run!
running = 1;

6
emul/forth/stage0.asm
View File

@ -1,5 +1,3 @@
.inc "stagec.asm"
.equ RAMSTART 0xe800
.equ STDIO_PORT 0x00
.inc "forth.asm"
.bin "z80c.bin"
CODE_END:

6
emul/forth/stage1.asm
View File

@ -1,6 +0,0 @@
.inc "stagec.asm"
.inc "forth.asm"
.bin "z80c.bin"
.bin "core.bin"
CODE_END:

4
emul/forth/stagec.asm
View File

@ -1,4 +0,0 @@
.equ RAMSTART 0xe800
.equ HERE_INITIAL CODE_END ; override
.equ LATEST CODE_END ; override
.equ STDIO_PORT 0x00

19
forth/forth.asm
View File

@ -38,10 +38,6 @@
.equ SYSVNXT @+WORD_BUFSIZE
.equ RAMEND @+SYSV_BUFSIZE+2
; (HERE) usually starts at RAMEND, but in certain situations, such as in stage0,
; (HERE) will begin at a strategic place.
.equ HERE_INITIAL RAMEND
; *** Stable ABI ***
; Those jumps below are supposed to stay at these offsets, always. If they
; change bootstrap binaries have to be adjusted because they rely on them.
@ -53,7 +49,9 @@
; 3
jp find
nop \ nop ; unused
nop \ nop \ nop ; unused
; 8
nop \ nop ; Placeholder for LATEST
nop ; unused
; 11
jp cellWord
jp compiledWord
@ -158,12 +156,12 @@ forthMain:
ld sp, 0xfffa
ld (INITIAL_SP), sp
ld ix, RS_ADDR
; LATEST is a label to the latest entry of the dict. This can be
; overridden if a binary dict has been grafted to the end of this
; binary
ld hl, LATEST
; LATEST is a label to the latest entry of the dict. It is written at
; offset 0x08 by the process or person building Forth.
ld hl, (0x08)
ld (CURRENT), hl
ld hl, HERE_INITIAL
; For now, we'll always make HERE start right after LATEST. This will
; not work on ROM-based system, but I'll adjust later.
ld (HERE), hl
ld hl, .bootName
call find
@ -400,6 +398,7 @@ litWord:
ld (IP), hl
jp next
.fill 3
; *** Dict hook ***
; This dummy dictionary entry serves two purposes:
; 1. Allow binary grafting. Because each binary dict always end with a dummy