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Optimized get_ostype() return values for asm usage.

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Making sure that all but //c machines have bit 6 clear allows to use BIT/BVS to detect the //c machines.
This commit is contained in:
Oliver Schmidt 2020-06-14 21:54:33 +02:00
parent 2acb3b153b
commit 6adf175691
2 changed files with 12 additions and 12 deletions
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12
include/apple2.h
View File

@ -111,12 +111,12 @@
#define APPLE_IIIEM 0x20 /* Apple /// (emulation) */
#define APPLE_IIE 0x30 /* Apple //e */
#define APPLE_IIEENH 0x31 /* Apple //e (enhanced) */
#define APPLE_IIECARD 0x40 /* Apple //e Option Card */
#define APPLE_IIC 0x50 /* Apple //c */
#define APPLE_IIC35 0x51 /* Apple //c (3.5 ROM) */
#define APPLE_IICEXP 0x53 /* Apple //c (Mem. Exp.) */
#define APPLE_IICREV 0x54 /* Apple //c (Rev. Mem. Exp.) */
#define APPLE_IICPLUS 0x55 /* Apple //c Plus */
#define APPLE_IIECARD 0x32 /* Apple //e Option Card */
#define APPLE_IIC 0x40 /* Apple //c */
#define APPLE_IIC35 0x41 /* Apple //c (3.5 ROM) */
#define APPLE_IICEXP 0x43 /* Apple //c (Mem. Exp.) */
#define APPLE_IICREV 0x44 /* Apple //c (Rev. Mem. Exp.) */
#define APPLE_IICPLUS 0x45 /* Apple //c Plus */
#define APPLE_IIGS 0x80 /* Apple IIgs */
#define APPLE_IIGS1 0x81 /* Apple IIgs (ROM 1) */
#define APPLE_IIGS3 0x83 /* Apple IIgs (ROM 3) */

12
libsrc/apple2/get_ostype.s
View File

@ -49,13 +49,13 @@ value: .byte $38, $10 ; Apple ][
.byte $EA, $AD, $11 ; Apple ][+
.byte $EA, $8A, $20 ; Apple /// (emulation)
.byte $06, $EA, $30 ; Apple //e
.byte $06, $E0, $02, $40 ; Apple //e Option Card
.byte $06, $E0, $02, $32 ; Apple //e Option Card
.byte $06, $E0, $31 ; Apple //e (enhanced)
.byte $06, $00, $FF, $50 ; Apple //c
.byte $06, $00, $00, $51 ; Apple //c (3.5 ROM)
.byte $06, $00, $03, $53 ; Apple //c (Mem. Exp.)
.byte $06, $00, $04, $54 ; Apple //c (Rev. Mem. Exp.)
.byte $06, $00, $05, $55 ; Apple //c Plus
.byte $06, $00, $FF, $40 ; Apple //c
.byte $06, $00, $00, $41 ; Apple //c (3.5 ROM)
.byte $06, $00, $03, $43 ; Apple //c (Mem. Exp.)
.byte $06, $00, $04, $44 ; Apple //c (Rev. Mem. Exp.)
.byte $06, $00, $05, $45 ; Apple //c Plus
.byte $00
.code