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pymite
by 
Norimasa Okamoto
pm.h File Reference
PyMite Header. More...
Go to the source code of this file.
Typedefs | |
| typedef enum PmReturn_e | PmReturn_t |
| Return values for system functions to report status, errors, exceptions, etc. | |
| typedef PmReturn_t(* | pPmNativeFxn_t )(pPmFrame_t *) |
| Pointer to a native function used for lookup tables in interp.c. | |
Enumerations | |
| enum | PmReturn_e { PM_RET_OK = 0, PM_RET_NO = 0xFF, PM_RET_ERR = 0xFE, PM_RET_STUB = 0xFD, PM_RET_ASSERT_FAIL = 0xFC, PM_RET_FRAME_SWITCH = 0xFB, PM_RET_ALIGNMENT = 0xFA, PM_RET_EX = 0xE0, PM_RET_EX_EXIT = 0xE1, PM_RET_EX_IO = 0xE2, PM_RET_EX_ZDIV = 0xE3, PM_RET_EX_ASSRT = 0xE4, PM_RET_EX_ATTR = 0xE5, PM_RET_EX_IMPRT = 0xE6, PM_RET_EX_INDX = 0xE7, PM_RET_EX_KEY = 0xE8, PM_RET_EX_MEM = 0xE9, PM_RET_EX_NAME = 0xEA, PM_RET_EX_SYNTAX = 0xEB, PM_RET_EX_SYS = 0xEC, PM_RET_EX_TYPE = 0xED, PM_RET_EX_VAL = 0xEE, PM_RET_EX_STOP = 0xEF, PM_RET_EX_WARN = 0xF0, PM_RET_EX_OFLOW = 0xF1 } |
Return values for system functions to report status, errors, exceptions, etc. More... | |
Functions | |
| PmReturn_t | pm_init (uint8_t *heap_base, uint32_t heap_size, PmMemSpace_t memspace, uint8_t const *const pusrimg) |
| Initializes the PyMite virtual machine and indexes the user's application image. | |
| PmReturn_t | pm_run (uint8_t const *modstr) |
| Executes the named module. | |
| PmReturn_t | pm_vmPeriodic (uint16_t usecsSinceLastCall) |
| Needs to be called periodically by the host program. | |
Variables | |
| volatile uint32_t | pm_timerMsTicks |
| Stores the timer millisecond-ticks since system start. | |
Detailed Description
PyMite Header.
Include things that are needed by nearly everything.
Definition in file pm.h.
Typedef Documentation
| typedef enum PmReturn_e PmReturn_t |
Return values for system functions to report status, errors, exceptions, etc.
Normally, functions which use these values should propagate the same return value up the call tree to the interpreter.
| typedef PmReturn_t(* pPmNativeFxn_t)(pPmFrame_t *) |
Enumeration Type Documentation
| enum PmReturn_e |
Return values for system functions to report status, errors, exceptions, etc.
Normally, functions which use these values should propagate the same return value up the call tree to the interpreter.
- Enumerator:
Function Documentation
| PmReturn_t pm_init | ( | uint8_t * | heap_base, |
| uint32_t | heap_size, | ||
| PmMemSpace_t | memspace, | ||
| uint8_t const *const | pusrimg | ||
| ) |
Initializes the PyMite virtual machine and indexes the user's application image.
The VM heap and globals are reset. The argument, pusrimg, may be null for interactive sessions.
- Parameters:
-
heap_base The address where the contiguous heap begins heap_size The size in bytes (octets) of the given heap. Must be a multiple of four. memspace Memory space in which the user image is located pusrimg Address of the user image in the memory space
- Returns:
- Return status
| PmReturn_t pm_run | ( | uint8_t const * | modstr ) |
| PmReturn_t pm_vmPeriodic | ( | uint16_t | usecsSinceLastCall ) |
Needs to be called periodically by the host program.
For the desktop target, it is periodically called using a signal. For embedded targets, it needs to be called periodically. It should be called from a timer interrupt.
- Parameters:
-
usecsSinceLastCall Microseconds (not less than those) that passed since last call. This must be <64535.
- Returns:
- Return status
Variable Documentation
| volatile uint32_t pm_timerMsTicks |
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