collapseos/apps/basic/glue.asm

; *** Requirements ***
; printstr
; printcrlf
; stdioReadLine
; strncmp
;
.inc "user.h"
.inc "err.h"

	jp	basStart

; RAM space used in different routines for short term processing.
.equ	SCRATCHPAD_SIZE	0x20
.equ	SCRATCHPAD	USER_RAMSTART

.inc "core.asm"
.inc "lib/util.asm"
.inc "lib/ari.asm"
.inc "lib/parse.asm"
.inc "lib/fmt.asm"
.equ	EXPR_PARSE	parseLiteralOrVar
.inc "lib/expr.asm"
.inc "basic/parse.asm"
.inc "basic/tok.asm"
.equ	VAR_RAMSTART	SCRATCHPAD+SCRATCHPAD_SIZE
.inc "basic/var.asm"
.equ	BUF_RAMSTART	VAR_RAMEND
.inc "basic/buf.asm"
.equ	BAS_RAMSTART	BUF_RAMEND
.inc "basic/main.asm"
USER_RAMSTART:
basic: begin an implementation from sratch Let's see where it will lead us... 2019-11-13 15:28:16 -05:00			`; * Requirements *`
			`; printstr`
			`; printcrlf`
			`; stdioReadLine`
			`; strncmp`
			`;`
			`.inc "user.h"`
			`.inc "err.h"`

			`jp basStart`

basic: allow multiple args in print 2019-11-20 20:58:26 -05:00			`; RAM space used in different routines for short term processing.`
			`.equ SCRATCHPAD_SIZE 0x20`
			`.equ SCRATCHPAD USER_RAMSTART`

Extract str.asm from core.asm and make core included by userspace Most of register fiddling routines (which is now the only thing contained in care.asm) are used by almost all userspace apps, often in inner loops. That makes the penalty of using jump tables for those a bit too high. Moreover, it burdens jump tables needlessly. Because this unit is very small (now that string routines are out), it makes sense to always include it in binaries. 2019-11-14 09:55:31 -05:00			`.inc "core.asm"`
lib/parse: decimal ending with a whitespace are now valid Also, make empty strings be parsed as invalid by parseDecimal. 2019-11-13 21:14:29 -05:00			`.inc "lib/util.asm"`
basic: add a print cmd It can only print a decimal literal. But still, that's a big step because I hadn't implemented decimal formatting yet. 2019-11-18 13:40:23 -05:00			`.inc "lib/ari.asm"`
basic: begin an implementation from sratch Let's see where it will lead us... 2019-11-13 15:28:16 -05:00			`.inc "lib/parse.asm"`
basic: add a print cmd It can only print a decimal literal. But still, that's a big step because I hadn't implemented decimal formatting yet. 2019-11-18 13:40:23 -05:00			`.inc "lib/fmt.asm"`
basic: add variables Things are getting cereal... 2019-11-20 15:10:00 -05:00			`.equ EXPR_PARSE parseLiteralOrVar`
basic: add expression support to print Again, same thing as in zasm. 2019-11-18 15:52:07 -05:00			`.inc "lib/expr.asm"`
basic: add if 2019-11-21 16:06:14 -05:00			`.inc "basic/parse.asm"`
basic: add a print cmd It can only print a decimal literal. But still, that's a big step because I hadn't implemented decimal formatting yet. 2019-11-18 13:40:23 -05:00			`.inc "basic/tok.asm"`
basic: allow multiple args in print 2019-11-20 20:58:26 -05:00			`.equ VAR_RAMSTART SCRATCHPAD+SCRATCHPAD_SIZE`
basic: add variables Things are getting cereal... 2019-11-20 15:10:00 -05:00			`.inc "basic/var.asm"`
			`.equ BUF_RAMSTART VAR_RAMEND`
basic: begin implementing a line buffer 2019-11-19 15:14:04 -05:00			`.inc "basic/buf.asm"`
			`.equ BAS_RAMSTART BUF_RAMEND`
basic: begin an implementation from sratch Let's see where it will lead us... 2019-11-13 15:28:16 -05:00			`.inc "basic/main.asm"`
Modify userspace .org and RAMSTART expectations Instead of expecting a `USER_CODE` symbol to be set, we expect `.org` to be set in all userspace glue code. This gives us more flexibility with regards to how we manage that. Moreover, instead of making `USER_RAMSTART` mandatory, we make it default to the end of the binary, which is adequate in a majority of cases. Will be useful for my upcoming mega-commit... :) 2019-11-15 10:33:13 -05:00			`USER_RAMSTART:`