/* * FreeRTOS Kernel V10.5.1+ * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * https://www.FreeRTOS.org * https://github.com/FreeRTOS * */ #ifndef PORTMACRO_H #define PORTMACRO_H /* *INDENT-OFF* */ #ifdef __cplusplus extern "C" { #endif /* *INDENT-ON* */ /*----------------------------------------------------------- * Port specific definitions. * * The settings in this file configure FreeRTOS correctly for the * given Z80 (Z180, Z80N) hardware and SCCZ80 or SDCC compiler. * * These settings should not be altered. *----------------------------------------------------------- */ /* Type definitions. */ #define portCHAR char #define portFLOAT float #define portDOUBLE double #define portLONG long #define portSHORT int typedef uint16_t StackType_t; typedef int8_t BaseType_t; typedef uint8_t UBaseType_t; #if configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_16_BITS typedef uint16_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffff #elif ( configTICK_TYPE_WIDTH_IN_BITS == TICK_TYPE_WIDTH_32_BITS ) typedef uint32_t TickType_t; #define portMAX_DELAY ( TickType_t ) 0xffffffffUL #else #error configTICK_TYPE_WIDTH_IN_BITS set to unsupported tick type width. #endif /*-----------------------------------------------------------*/ /* General purpose stringify macros. */ #define string(a) __string(a) #define __string(a) #a /*-----------------------------------------------------------*/ /* Architecture specifics. */ #define portSTACK_GROWTH ( -1 ) #define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ ) #define portBYTE_ALIGNMENT 1 /*-----------------------------------------------------------*/ /* Critical section management. */ #define portENTER_CRITICAL() \ do{ \ __asm__( \ "ld a,i \n" \ "di \n" \ "push af \n" \ ); \ }while(0) #define portEXIT_CRITICAL() \ do{ \ __asm__( \ "pop af \n" \ "; di ; unneeded \n" \ "jp PO,ASMPC+4 \n" \ "ei \n" \ ); \ }while(0) #define portDISABLE_INTERRUPTS() \ do{ \ __asm__( \ "di \n" \ ); \ }while(0) #define portENABLE_INTERRUPTS() \ do{ \ __asm__( \ "ei \n" \ ); \ }while(0) #define portNOP() \ do{ \ __asm__( \ "nop \n" \ ); \ }while(0) /* * Macros to save all the registers, and save the stack pointer into the TCB. * * The first thing we do is save the flags then disable interrupts. This is to * guard our stack against having a context switch interrupt after we have already * pushed the registers onto the stack. * * The interrupts will have been disabled during the call to portSAVE_CONTEXT() * so we need not worry about reading/writing to the stack pointer. */ #define portSAVE_CONTEXT() \ do{ \ __asm__( \ "push af \n" \ "ld a,i \n" \ "di \n" \ "push af ; iff1:iff2\n" \ "push bc \n" \ "push de \n" \ "push hl \n" \ "exx \n" \ "ex af,af \n" \ "push af \n" \ "push bc \n" \ "push de \n" \ "push hl \n" \ "push ix \n" \ "push iy \n" \ "ld hl,0 \n" \ "add hl,sp \n" \ "ld de,(_pxCurrentTCB) \n"\ "ex de,hl \n" \ "ld (hl),e \n" \ "inc hl \n" \ "ld (hl),d \n" \ ); \ }while(0) #define portRESTORE_CONTEXT() \ do{ \ __asm__( \ "ld hl,(_pxCurrentTCB) \n" \ "ld e,(hl) \n" \ "inc hl \n" \ "ld d,(hl) \n" \ "ex de,hl \n" \ "ld sp,hl \n" \ "pop iy \n" \ "pop ix \n" \ "pop hl \n" \ "pop de \n" \ "pop bc \n" \ "pop af \n" \ "ex af,af \n" \ "exx \n" \ "pop hl \n" \ "pop de \n" \ "pop bc \n" \ "pop af ; iff1:iff2\n" \ "; di ; unneeded \n" \ "jp PO,ASMPC+4 \n" \ "ei \n" \ "pop af \n" \ "ret \n" \ ); \ }while(0) #define portSAVE_CONTEXT_IN_ISR() \ do{ \ __asm__( \ "PHASE "string(configISR_ORG)" \n" \ "._timer_isr_start \n" \ "push af \n" \ "ld a,0x7F \n" \ "inc a ; set PE \n" \ "push af ; iff1:iff2\n" \ "push bc \n" \ "push de \n" \ "push hl \n" \ "exx \n" \ "ex af,af \n" \ "push af \n" \ "push bc \n" \ "push de \n" \ "push hl \n" \ "push ix \n" \ "push iy \n" \ "ld hl,0 \n" \ "add hl,sp \n" \ "ld de,(_pxCurrentTCB) \n" \ "ex de,hl \n" \ "ld (hl),e \n" \ "inc hl \n" \ "ld (hl),d \n" \ ); \ }while(0) #define portRESTORE_CONTEXT_IN_ISR()\ do{ \ __asm__( \ "ld hl,(_pxCurrentTCB) \n" \ "ld e,(hl) \n" \ "inc hl \n" \ "ld d,(hl) \n" \ "ex de,hl \n" \ "ld sp,hl \n" \ "pop iy \n" \ "pop ix \n" \ "pop hl \n" \ "pop de \n" \ "pop bc \n" \ "pop af \n" \ "ex af,af \n" \ "exx \n" \ "pop hl \n" \ "pop de \n" \ "pop bc \n" \ "pop af ; iff1:iff2\n" \ "; di ; unneeded \n" \ "jp PO,ASMPC+4 \n" \ "ei \n" \ "pop af \n" \ "reti \n" \ "._timer_isr_end \n" \ "DEPHASE \n" \ ); \ }while(0) /*-----------------------------------------------------------*/ /* Kernel utilities. */ extern void vPortYield( void ); #define portYIELD() vPortYield() extern void vPortYieldFromISR( void ); #define portYIELD_FROM_ISR() vPortYieldFromISR() /*-----------------------------------------------------------*/ /* Task function macros as described on the FreeRTOS.org WEB site. */ #define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters ) #define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters ) /* *INDENT-OFF* */ #ifdef __cplusplus } #endif /* *INDENT-ON* */ #endif /* PORTMACRO_H */