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mirror of https://github.com/cc65/cc65.git synced 2026-04-25 22:18:27 +00:00

Create static drivers directly from source files.

Up to now static drivers were created via co65 from dynamic drivers. However there was an issue with that approach:

The dynamic drivers are "o65 simple files" which obligates that they start with the 'code' segment. However dynamic drivers need to start with the module header - which is written to. For dynamic drivers this isn't more than a conceptual issue because they are always contain a 'data' segment and may therefore only be loaded into writable memory.

However when dynamic drivers are converted to static drivers using co65 then that issue becomes a real problem as then the 'code' segment may end up in non-writable memory - and thus writing to the module header fails.

Instead of changing the way dynamic drivers work I opted to rather make static driver creation totally independent from dynamic drivers. This allows to place the module header in the 'data' segment (see 'module.mac').
This commit is contained in:
Oliver Schmidt
2014-06-04 23:50:18 +02:00
parent 2bc4634860
commit 2c975d3642
79 changed files with 332 additions and 115 deletions
+6 -1
View File
@@ -31,12 +31,17 @@
.macpack generic
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrx130_emd
.else
module_header _atr130_emd
.endif
; Driver signature
+6 -1
View File
@@ -14,12 +14,17 @@
.include "atari.inc"
.macpack generic
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrxmj8_joy
.else
module_header _atrmj8_joy
.endif
; Driver signature
+6 -1
View File
@@ -13,12 +13,17 @@
.include "atari.inc"
.macpack generic
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrxstd_joy
.else
module_header _atrstd_joy
.endif
; Driver signature
+6 -1
View File
@@ -10,11 +10,16 @@
.include "atari.inc"
.macpack generic
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrxjoy_mou
.else
module_header _atrjoy_mou
.endif
HEADER:
+26 -1
View File
@@ -23,6 +23,7 @@ DISABLE_TIMEOUT = 30 ; # of vertical blank interrupts after w
.include "atari.inc"
.macpack generic
.macpack module
.if .not ( .defined (AMIGA_MOUSE) .or .defined (TRAK_MOUSE))
ST_MOUSE = 1
@@ -31,7 +32,31 @@ DISABLE_TIMEOUT = 30 ; # of vertical blank interrupts after w
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.if .defined (ST_MOUSE)
.ifdef __ATARIXL__
module_header _atrxst_mou
.else
module_header _atrst_mou
.endif
.elseif .defined (AMIGA_MOUSE)
.ifdef __ATARIXL__
module_header _atrxami_mou
.else
module_header _atrami_mou
.endif
.elseif .defined (TRAK_MOUSE)
.ifdef __ATARIXL__
module_header _atrxtrk_mou
.else
module_header _atrtrk_mou
.endif
.endif
HEADER:
+6 -1
View File
@@ -9,11 +9,16 @@
.include "atari.inc"
.macpack generic
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrxtt_mou
.else
module_header _atrtt_mou
.endif
HEADER:
+7 -1
View File
@@ -10,11 +10,17 @@
.include "ser-error.inc"
.include "atari.inc"
.macpack module
; ------------------------------------------------------------------------
; Header. Includes jump table
.segment "HEADER"
.ifdef __ATARIXL__
module_header _atrxrdev_ser
.else
module_header _atrrdev_ser
.endif
; Driver signature
+14 -1
View File
@@ -3,6 +3,7 @@
;
.macpack longbranch
.macpack module
.ifdef __ATARIXL__
CIO_vec := my_CIOV
@@ -18,7 +19,19 @@
;
; ----------------------------------------------------------------------
.segment "HEADER"
.ifdef __ATARIXL__
.define LABEL_X "x"
.else
.define LABEL_X ""
.endif
.if pages = 2
.define LABEL_P2 "p2"
.else
.define LABEL_P2 ""
.endif
module_header .ident (.sprintf ("_atr%s%d%s_tgi", LABEL_X, ::grmode, LABEL_P2))
; Header