C65_VICIII_UNLOCK_1 = $A5
C65_VICIII_UNLOCK_2 = $96
+
+
+; ---------------------------------------------------------------------------
+; C64 Turbo Master cartridge
+
+TURBOMASTER_DETECT := $BF53
+
+TURBOMASTER_SPEED_REG := $00
+
<item>detect_c65
<item>detect_chameleon
<item>detect_scpu
+<item>detect_turbomaster
<item>get_c128_speed
<item>get_c64dtv_speed
<item>get_c65_speed
<item>get_chameleon_speed
<item>get_scpu_speed
+<item>get_turbomaster_speed
<item>set_c128_speed
<item>set_c64dtv_speed
<item>set_c65_speed
<item>set_chameleon_speed
<item>set_scpu_speed
+<item>set_turbomaster_speed
</itemize>
<item><ref id="detect_c65" name="detect_c65">
<item><ref id="detect_chameleon" name="detect_chameleon">
<item><ref id="detect_scpu" name="detect_scpu">
+<item><ref id="detect_turbomaster" name="detect_turbomaster">
<item><ref id="get_c128_speed" name="get_c128_speed">
<item><ref id="get_c64dtv_speed" name="get_c64dtv_speed">
<item><ref id="get_c65_speed" name="get_c65_speed">
<item><ref id="get_chameleon_speed" name="get_chameleon_speed">
<item><ref id="get_scpu_speed" name="get_scpu_speed">
+<item><ref id="get_turbomaster_speed" name="get_turbomaster_speed">
<item><ref id="set_c128_speed" name="set_c128_speed">
<item><ref id="set_c64dtv_speed" name="set_c64dtv_speed">
<item><ref id="set_c65_speed" name="set_c65_speed">
<item><ref id="set_chameleon_speed" name="set_chameleon_speed">
<item><ref id="set_scpu_speed" name="set_scpu_speed">
+<item><ref id="set_turbomaster_speed" name="set_turbomaster_speed">
</itemize>
</quote>
+<sect1>detect_turbomaster<label id="detect_turbomaster"><p>
+
+<quote>
+<descrip>
+<tag/Function/Check for the presence of the C64 Turbo Master cartridge.
+<tag/Header/<tt/<ref id="accelerator.h" name="accelerator.h">/
+<tag/Declaration/<tt/unsigned char detect_turbomaster (void);/
+<tag/Description/The function returns a 1 if a C64 Turbo Master cartridge has been detected.
+<tag/Notes/<itemize>
+<item>The function is specific to the C64.
+</itemize>
+<tag/Availability/cc65 (not all platforms)
+<tag/See also/
+<ref id="get_turbomaster_speed" name="get_turbomaster_speed">,
+<ref id="set_turbomaster_speed" name="set_turbomaster_speed">,
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>div<label id="div"><p>
<quote>
</quote>
+<sect1>get_turbomaster_speed<label id="get_turbomaster_speed"><p>
+
+<quote>
+<descrip>
+<tag/Function/Get the current speed of the C64 Turbo Master cartridge.
+<tag/Header/<tt/<ref id="accelerator.h" name="accelerator.h">/
+<tag/Declaration/<tt/unsigned char get_turbomaster_speed (void);/
+<tag/Description/The function returns the current speed of the C64 Turbo Master cartridge.
+<tag/Notes/<itemize>
+<item>The function is specific to the C64.
+<item>The function does not check for the presence of the C64 Turbo master cartridge.
+<item>See the accelerator.h header for the speed definitions.
+</itemize>
+<tag/Availability/cc65 (not all platforms)
+<tag/See also/
+<ref id="detect_turbomaster" name="detect_turbomaster">,
+<ref id="set_turbomaster_speed" name="set_turbomaster_speed">,
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>get_scpu_speed<label id="get_scpu_speed"><p>
<quote>
</quote>
+<sect1>set_turbomaster_speed<label id="set_turbomaster_speed"><p>
+
+<quote>
+<descrip>
+<tag/Function/Set the current speed of the C64 Turbo Master cartridge.
+<tag/Header/<tt/<ref id="accelerator.h" name="accelerator.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ set_turbomaster_speed (unsigned char speed);/
+<tag/Description/The function returns the speed after trying to set the speed of the C64 Turbo Master cartridge.
+<tag/Notes/<itemize>
+<item>The function is specific to the C64.
+<item>The function does not check for the presence of the C64 Turbo Master cartridge.
+<item>See the accelerator.h header for the speed definitions.
+</itemize>
+<tag/Availability/cc65 (not all platforms)
+<tag/See also/
+<ref id="detect_turbomaster" name="detect_turbomaster">,
+<ref id="get_turbomaster_speed" name="get_turbomaster_speed">,
+<tag/Example/None.
+</descrip>
+</quote>
+
+
<sect1>set_scpu_speed<label id="set_scpu_speed"><p>
<quote>
* 0x00 : C65/C64DX in C64 mode not present
* 0x01 : C65/C64DX in C64 mode present
*/
+
+
+/* C64 Turbo Master cartridge */
+
+unsigned char __fastcall__ set_turbomaster_speed (unsigned char speed);
+
+/* Set the speed of the Turbo Master cartridge, using SPEED_SLOW will switch to
+ * 1 Mhz mode, SPEED_4X or SPEED_FAST will switch to 4 Mhz mode.
+ *
+ * Note that any value higher or equal to SPEED_4X will switch to 4 Mhz mode,
+ * any value lower than SPEED_4X will switch to 1 Mhz mode.
+ *
+ * This function will return the actual speed the CPU is at after trying
+ * to set the requested speed, if the speed is different it might indicate
+ * that the hardware switch has locked the speed.
+ *
+ * This function does not check for the presence of a Turbo Master cartridge,
+ * make sure you use 'detect_turbomaster();' before using.
+ */
+
+unsigned char get_turbomaster_speed (void);
+
+/* Get the speed of the Turbo Master cartridge.
+ *
+ * Possible return values:
+ * SPEED_SLOW : 1 Mhz mode
+ * SPEED_4X : 4 Mhz mode
+ *
+ * This function does not check for the presence of a Turbo Master cartridge,
+ * make sure you use 'detect_turbomaster();' before using.
+ */
+
+unsigned char detect_turbomaster (void);
+
+/* Check for the presence of a C64 Turbo Master cartridge.
+ *
+ * Possible return values:
+ * 0x00 : C64 Turbo Master cartridge not present
+ * 0x01 : C64 Turbo Master cartridge present
+ */
+
/* End of accelerator.h */
#endif
--- /dev/null
+;
+; Marco van den Heuvel, 2018-04-30
+;
+
+; unsigned char detect_turbomaster (void);
+;
+;/* Check for the presence of a Turbo Master cartridge.
+; *
+; * Possible return values:
+; * 0x00 : TurboMaster cartridge not present
+; * 0x01 : TurboMaster cartridge present
+; */
+
+ .export _detect_turbomaster
+
+ .include "accelerator.inc"
+
+_detect_turbomaster:
+ lda #$00
+ tax
+
+; Make sure the current CPU is not a 6510
+ .byte $1A ; NOP on 8502, INA on 65(S)C(E)02, 4510 and 65816
+ beq not_found
+
+; Make sure the current CPU is not a 65816
+ clc
+ .byte $E2,$01 ; NOP #$01 on 65(S)C02, LDA $(01,S),Y on 65CE02 and 4510, SEP #$01 on 65816
+ bcs not_found ; carry will be set on 65816
+
+; Make sure the current CPU is not a 65CE02/4510
+ .byte $A3,$A3 ; NOP NOP on 65(S)C02 and LDZ #$00 on 65CE02 and 4510
+ .byte $6B ; NOP on 65(S)C02 and TZA on 65CE02 and 4510
+ cmp #$A3
+ beq not_found
+
+; Check for turbo master basic replacement
+ ldy TURBOMASTER_DETECT
+ cpy #$A2
+ bne not_found
+found:
+ lda #$01
+ .byte $24
+not_found:
+ txa
+ rts
+
--- /dev/null
+;
+; Marco van den Heuvel, 2018-04-30
+;
+
+; unsigned char __fastcall__ set_turbomaster_speed (unsigned char speed);
+;
+;/* Set the speed of the Turbo Master cartridge, using SPEED_SLOW will switch to
+; * 1 Mhz mode, SPEED_4X or SPEED_FAST will switch to 4 Mhz mode.
+; *
+; * Note that any value higher or equal to SPEED_4X will switch to 4 Mhz mode,
+; * any value lower than SPEED_4X will switch to 1 Mhz mode.
+; *
+; * This function will return the actual speed the CPU is at after trying
+; * to set the requested speed, if the speed is different it might indicate
+; * that the hardware switch has locked the speed.
+; *
+; * This function does not check for the presence of a Turbo Master cartridge,
+; * make sure you use 'detect_turbomaster();' before using.
+; */
+
+; unsigned char get_turbomaster_speed (void);
+;
+;/* Get the speed of the Turbo Master cartridge.
+; *
+; * Possible return values:
+; * SPEED_SLOW : 1 Mhz mode
+; * SPEED_4X : 4 Mhz mode
+; *
+; * This function does not check for the presence of a Turbo Master cartridge,
+; * make sure you use 'detect_turbomaster();' before using.
+; */
+
+ .export _set_turbomaster_speed
+ .export _get_turbomaster_speed
+
+ .include "accelerator.inc"
+
+_set_turbomaster_speed:
+ tay
+ lda TURBOMASTER_SPEED_REG
+ cpy #SPEED_4X
+ bcs high_speed
+low_speed:
+ and #$7F
+store_speed:
+ sta TURBOMASTER_SPEED_REG
+ jmp _get_turbomaster_speed
+
+high_speed:
+ ora #$80
+ bne store_speed
+
+
+_get_turbomaster_speed:
+ ldx #$00
+ lda TURBOMASTER_SPEED_REG
+ and #$80
+ beq is_slow_speed
+is_high_speed:
+ lda #SPEED_4X
+is_slow_speed:
+ rts
+
all: c64-scpu-test.prg c128-scpu-test.prg c64dtv-test.prg \
c64-c128-test.prg c128-test.prg chameleon-test.prg \
- c65-test.prg
+ c65-test.prg turbomaster-test.prg
c64-scpu-test.prg: c64-c128-scpu-test.c
$(CL) -t c64 c64-c128-scpu-test.c -o c64-scpu-test.prg
c65-test.prg: c65-test.c
$(CL) -t c64 c65-test.c -o c65-test.prg
+
+turbomaster-test.prg: turbomaster-test.c
+ $(CL) -t c64 turbomaster-test.c -o turbomaster-test.prg
projects / cc65 / commitdiff